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post #1961 of 5036
I underclocked it to 3.8Ghz until summer is over

After summer is gone I'll put it back to 4Ghz xd.

Here's the OC I've done:

http://valid.canardpc.com/show_oc.php?id=1354257

cheers
    
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post #1962 of 5036
Quote:
Originally Posted by Maxcielle View Post
my mobo doesnt power on for anything.

the PSU works nice. I took it to a shop and works.

Now have to send the mobo to repair or something.

Can someone suggest the absolute cheapest mobo that supports 1055T 125W ddr3 12800 and has onboard graphics so i can hold to it until i get my mobo back?

what a mess.
I cannot quite understand what happened. I was under the impression that you had achieved a stable overclock at 3.794 GHz. Replacing RAM modules does not normally cause motherboard chips or capacitors to short, certainly not on a motherboard with a solid capacitor design.

Before returning your motherboard under warranty, did you retry your old working memory modules? Some modules are difficult to reseat. The next time your sysem runs stably, I suggest that you retain your configuration until a substantial problem arises. The effort to achieve incremental improvements is not worth the expense or the hassle.

For now, I suggest that you either use a backup computer or that you buy a temporary motherboard (same model) from a local shop with a flexible return policy. It may also help you to isolate the problem.
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post #1963 of 5036
Quote:
Originally Posted by iSeries View Post
Hi,

Having got the cooling sorted out in my case I'm going to get a bit braver with my overclocks. Previously I was oc'd to 3.6ghz CPU (300 x 12) / 2.4ghz CPUNB / 2.1ghz HT. I'm going for 3.75ghz but I have a question about voltages. I have up until now left all voltages on 'Auto'. According to HW Monitor this has been giving 1.33v for 3.6ghz. When I upped the multiplier from 12x to 12.5x for 3.75ghz according to HW Monitor Auto was still only giving 1.33v. Looking at people's settings on the first page I doubt this will be enough? I've set it to 1.4v - is this enough? Too much? Or should I just let 'Auto' do its thing? (I should also add that when I adjust voltages manually the BIOS tells me rather scarily that 'VOLTAGES ARE NOT OMPTIMIZED'!)
1.4 VCore is a safe setting for this particular processor and should offer more than sufficient stability for your 3.75 GHz overclock.
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post #1964 of 5036
Quote:
Originally Posted by Headless Fansprings View Post
1.4 VCore is a safe setting for this particular processor and should offer more than sufficient stability for your 3.75 GHz overclock.
In fact, 1.4v should be enough for something close to 4Ghz, if not 4Ghz

Mine does 3.8Ghz @ 1.36v, did I get a good chip? xD
    
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post #1965 of 5036
Quote:
Originally Posted by kcuestag View Post
In fact, 1.4v should be enough for something close to 4Ghz, if not 4Ghz

Mine does 3.8Ghz @ 1.36v, did I get a good chip? xD
Look at the first page of this thread and you can see what people are using. I am using the same volts as you for the same clock, but it seems the jump to 4.0 may require a bigger jump in volts.
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post #1966 of 5036
Quote:
Originally Posted by kcuestag View Post
Which OC is better you think for performance:

http://valid.canardpc.com/show_oc.php?id=1354388 (Low RAM...)

or

http://valid.canardpc.com/show_oc.php?id=1354257 (3.8Ghz but higher ram Mhz)
I have read your many posts and will try to address all of your questions catagorically.

The Embedded Controller (EC) firmware drives the Advanced Clock Calibration (ACC), thereby allowing locked cores to be enabled. The update may have enabled all six cores on your 1055T when you upgraded from your 965 BE.

You probably could raise your DDR3 voltage to 1.7 V without comprising its longevity. However, your RAM timings should also be tigthened to about 7-7-7-20 in order to maximize performance.

Look at the JEDEC settings for the 5.33x multiplier. At 1450 MHz, CL7 is certainly achievable.

The HT reference clock is not a bottleneck for your particular board, the GA-MA790FXT-UD5P. It should reach 320 MHz with relative ease. However, total dissipated processor power (TDP) may only be limited to 140 W. Therefore, you may be obliged to trade some MHz from your CPU for better memory performance, in particular by raising your Northbridge frequency.


Re: So many questions! Perhaps a few answers.

First of all, please note that 95 W Thubans are very capable of being overclocked to 4 GHz with much less than 1.4 Vcore:

http://www.overclock.net/amd-cpus/77...g-results.html

With regard to your question about the longevity of overvolted CPUs and associated components, it is reasonable to expect most AMD CPUs to last 10 years at stock voltage. Depending upon usage, the lifetime is halved for every 0.1 V increase. Bearing in mind the fact that your CPU is well cooled and the counterveiling impact of running the numerical simulations of others around the clock, I would expect your CPU and motherboard to last about 2.5 years. If your Northbridge is running particularily hot, your motherboard will probably fail first in which case you would be well advised to locate a spot cooler.

If you would like your CPU and motherboard to last longer (4-5 years), run your processor at the maximum frequency possible at 1.425 Vcore. I doubt that you will lose more than 150 MHz.

At present, your RAM is significantly underclocked to the point where it hinders your system's performance. You may be losing as much as 5-6% in raw FLOPS due to the combined effect of low DDR3 and NB link frequencies. (Can you not tigthen your timings beyond CL8?) However, if you can make up for this by raising your CPU frequency by 7.5%, you may have discovered a solution to your problem. I, personally, would opt for the lower CPU frequency using the 13X multiplier and 1600 MHz RAM with CL7 timings (not to mention the extended system lifetime). At the same time, you had best raise your NB link multiplier to at least 9X (10X if possible).

By the way, the limitations on your RAM vs. CPU are not really a BIOS issue, but rather an issue related to total dissipated power.

I hope that some of your questions have been answered.

Quote:
Originally Posted by kcuestag
Thanks a lot for the information.

So you would suggest me to lower to 1.42v? I can have 3.8Ghz at 1.4v but I don't think I can have 3.9ghz at 1.42v

What would you do in MY case? :/

Oh, and I forgot to mention, my RAM is already overvolted from 1.5v to 1.6v to be able to go from 9-9-9-24-2T to 8-8-8-24-1T. I can't go to CL7 sadly.
Try the 13X CPU multiplier with reference clocks between 290 and 300 MHz. I am fairly certain that 295 will work. 300 will give you 1600 MHz DDR3, hopefully with the correct timings.

Quote:
Originally Posted by kcuestag
The problem is anything above 1400Mhz seems to be unstable because of the BIOS; it's a known issue on my board with 1055T's :/

I lowered vcore so now its like this:

http://valid.canardpc.com/show_oc.php?id=1420694

NB is at 25xxMhz

I can't say it's 100% stable but it's so far holding Folding@Home for 30 minutes on all cores 100% (Folding@Home looks to be more stressful than Prime95 ^^).

Is that voltage going to give me a longer life for my pc?

Nb is at 1.180v btw
I daresay that I am rather confused by your posts at this point. Did you not achieve stability before with similar settings and the standard DDR3 frequency/timings of 1524 MHz (8-8-8-24)?

http://valid.canardpc.com/show_oc.php?id=1369914

If so, retain the settings that worked. You also posted a 4.3 GHz overclock. If neither of these is stable, your validations are not very useful.

Assuming the latter, you may wish to first attempt to raise your DDR3 voltage, which is known to perform optimally between 1.65-1.75 V in this architecture. 1.8 V should be the absolute limit. This article should guide you with respect to the capabilities of your memory modules:

http://www.tomshardware.com/reviews/...am,2542-8.html

Maybe, your modules are, in fact, the CL7 rated variety:

http://www.tomshardware.com/forum/26...600-77724-help

Failing that, try to lower your timings to 6-7-6-12-1T. However, you must absolutely use a lower CPU multiplier (12X or 12.5X) in order to accomplish this as you will need a reference clock of 320-340 MHz in order to achieve reasonable memory clock speeds with the 4X memory multipler.

Regarding the CPU voltage, 1.472 Vcore should provide you with 3 or so years of usage.

Quote:
Originally Posted by kcuestag
Thank you.

My RAM is rated for 9-9-9-24-2T 1.5v according to G-Skill, and I have it at 1.6v (For some reason my board gives it 1.6v as default voltage) 8-8-8-24-1T.

Could you please explain me what I should to do lower the timings even more?

And btw, I can't go to 1524Mhz with this current OC because it's not stable, I log into windows, and all my programs keep crashing, like AMD display driver has stopped working and recovered... etc..

I heard it's a BIOS issue with my board
Quote:
Originally Posted by kcuestag
Following your help, I was able to achieve this:


http://valid.canardpc.com/show_oc.php?id=1421242

Lowered the 4Ghz to 1.45v and so far it's been stable for the last 4 hours with Folding@Home all cores on 100%. Not bad (I'll wait until it does +8 hours and then I'll be even more happy to see its stable )

Also I was able to lower the RAM timings to 6-7-6-15-1T @ 1.65v

I wanted 6-7-6-12 like you told me, but for some reason on my Motherboard anything below 15 doesn't exist, why?

Anyways, I think I should be very happy now, it's a great OC in my opinion, and great timings.

Looking better now?
I am pleased that my suggestions were helpful. I believe that you are almost at your destination. Now, you have to lower the CPU multiplier in order to achieve respectable DDR3 frequencies. I am confident that you will succeed. The first profile should be very stable. If you succeed, proceed to lower your multiplier to 12X.

HT ref clock 320
CPU Multi 12.5X
NB link multi 9X
HT link multi 7X
DDR3 multi 4X (6-7-6-15-1T timings)
CPU voltage 1.45 V
CPU NB voltage 1.4 V (less if possible)

HT ref clock 334
CPU Multi 12X
NB link multi 9X
HT link multi 6X
DDR3 multi 4X (6-7-6-15-1T timings)
CPU voltage 1.45 V
CPU NB voltage 1.4 V (less if possible)

As for the Minimum RAS Active Time, some motherboards like mine and yours do not support less than 15T. Believe me. It is fast enough.

Quote:
Originally Posted by kcuestag
Do you have any msn we could talk through?

I've got loads of questions, and answering them all here would take ages

Once more, thank you.

Quote:
Originally Posted by kcuestag
Hello.


I just tried both settings with 12X and 12.5X multiplier, and neither of both would boot into Windows.

Motherboard says it failed to boot due to Overclock or something.

I changed back to my last OC and still failed until I retried 2 times...

So I am back to my last OC I told you.

What would you suggest me to do then?

Also, with ur Oc, only thing I would improve is RAM fro m1140Mhz to close to 1333Mhz, I don't think that will make much difference... and my NB you told me to set it to 3000Mhz, that's a lot :/
Sorry! I do not use MSN Messenger, but would be happy to answer any questions that you post on the 1055T Owner's Club Forum.

I had to review my notes regarding HT reference overclocking on your motherboard. This is what I discovered:

http://www.legitreviews.com/article/973/6/

I also noted that you may set:

http://www.maximumpc.com/article/fea...ained?page=0,5

SB/HT Voltage (leave this one alone)
NB/PCIe/PLL Voltage (should not need to raise any of these)
CPU PLL Voltage Control (this is the key to higher HT ref clocks)
DDR VTT Voltage Control (leave this alone)
NB Voltage Control (should not need to touch this)
CPU VID (1.45 V)
CPU NB VID (1.15 + 0.00076*[NB freq - 2520] V)

Based on the rated NB link frequencies, you should be able to load the 12.5X configuration with 1.425 V and the 12X configuration with 1.52 V of CPU NB voltage. If you feel that this is too high and you are probably right in the second case, drop the multiplier. However, you first need to stabilize your HT clock and this may require a bit more CPU PLL voltage. Too much will damage your motherboard.

Let us take a step back and try the 13.5X and 13X configurations. To answer your last question, you stand to gain about 16.7% in your memory's performance if you achieve the 12X settings. Here are two more profiles:

HT ref clock 297
CPU Multi 13.5X
NB link multi 9X
HT link multi 7X
DDR3 multi 4X (6-7-6-15-1T timings)
CPU voltage 1.45 V
CPU NB voltage 1.28 V (more if necessary)

HT ref clock 308
CPU Multi 13X
NB link multi 9X
HT link multi 7X
DDR3 multi 4X (6-7-6-15-1T timings)
CPU voltage 1.45 V
CPU NB voltage 1.34 V (more if necessary)

Quote:
Originally Posted by kcuestag
Thank you.

But, isn't 1.34v a lot for CPU NB voltage? I have it at stock right now with current OC.

And once again, thanks for helping me.
As you can see below:

Google Spreadsheet
,

most good overclocks using the 1055t adopt an NB link frequency between 2700 and 2900 MHz with CPU NB voltages between 1.3 and 1.4 V. Therefore, all of the profiles that I recommended seem to be safe except for the 12X profile, where the CPU PLL voltage may have to be raised in order to achieve HT reference clocks above 319. Nonetheless, it is wise to proceed slowly beginning with the 13.5X profile. Good luck!

Quote:
Originally Posted by kcuestag
But to be able to increase NB voltage, don't need I need to increase my NB Voltage as well?

I'll give it a try now, but, why bother so much to increase RAM from 1140MHz to 1333Mhz? I don't think it will make difference?
Quote:
Originally Posted by kcuestag
Hello,

I was able to achieve following OC:

http://valid.canardpc.com/show_oc.php?id=1421962

NB is at 2860Mhz, better now?

For some reason I can't try your profiles with 13X or 13.5X multipliers

I keep crashing while loading Windows, or it gets stuck at "Starting Windows"..

As I said, its a BIOS issue in my board It won't go above 1140Mhz while OC'ed at 4Ghz, although its perfectly fine at 3.8Ghz and 1536Mhz ... it's a bios issue m8

Should I just stay with this OC? I mean it's same OC except NB I raised it to 2860Mhz.

Should I stay like that?

I have following voltages:

DDR3: 1.65v
CPU-NB Voltage: 1.35v
NB Voltage: 1.180v
CPU Voltage: 1.45v

Should I just stay like this? :/
This is certainly an improvement. At this point, you have two options in order to achieve the tour de force. You could attempt to tigthen your timings further to 5-6-5-15-1T or try to decipher what is impeding your DDR3 overclock. It may be be related to the NB/PCIe/PLL and NB voltages or, more likely, to the total current that your power supply can deliver to your specific motherboard. Both would increase your memory bandwidth by about 16%.

To investigate the latter, you will have to try the 13.5X multiplier with the prescribed settings and lower the HT reference clock until your system is stable. You will then be required to repeat the same experiment with the 13X and 12.5X settings. If the issue is amperage, you will achieve a lower stable overclock as you increase the multiplier. By raising the NB/PCIe/PLL voltage, you may, in fact, decrease the total amperes output by your power supply to the board without sacrificing power. Raising the NB voltage, on the other hand, will probably have no effect and may actually increase the burden on your power supply.

Quote:
Originally Posted by kcuestag
I don't think lowering timings even more will be possible, but I will give that a try tomorrow after school.

The RAM speed issue, like I said, its a known issue with my board and should be fixed in upcoming bios updates.

I guess I will stay like I am right now, and try lower timings tomorrow =)
Apparently, this fellow managed a 3.94 GHz overclock on his 1090t on your motherboard with his G-skills running at 2000 MHz. Perhaps, you should contact him in order to resolve your issue:

http://forums.guru3d.com/showthread....77#post3724777

Sever
Maha Guru


Videocard: xfx 5850 xxx crossfire
Processor: AMD 1090T @4ghz
Mainboard: Gigabyte GA-MA790FXT-UD5P
Memory: 8gb G.SKILL DDR3 2000mhz
Soundcard: Realtek HD
PSU: Thermaltake TP-875W 10-02-2010, 19:01 | posts: 1,397 | Location: Land of the Great Downunder | User is Offline

--------------------------------------------------------------------------------

im pretty sure ram speed alone would not do any damage. ive been running my ram at 1600 for over a year now, 2000mhz for benches, on both my old 965be (which is now running on my friend's comp) and my new 1090t with no issues (no issues even though the 965be was meant to have a memory controller that couldnt handle with 4 sticks). the only times ive ever had any crashes were from when i had the ram timings set too tight.

so if i were you, i would double check you have the ram timings and ram voltages set correctly.

Sever
Maha Guru


Videocard: xfx 5850 xxx crossfire
Processor: AMD 1090T @4ghz
Mainboard: Gigabyte GA-MA790FXT-UD5P
Memory: 8gb G.SKILL DDR3 2000mhz
Soundcard: Realtek HD
PSU: Thermaltake TP-875W 09-07-2010, 18:54 | posts: 1,397 | Location: Land of the Great Downunder | User is Offline

--------------------------------------------------------------------------------

http://forums.guru3d.com/showthread....61#post3697561

when i first saw the temps on the guru3d review, i must admit, i was skeptical...

but then i just got mine today...

cpu: 1090t
24/7 oc: 3940mhz!
24/7v: 1.385V
HT speed: 225mhz
Memory: 1800mhz (im still trying to find an OC setting where i can get it to run at the 2000mhz its rated at)
cooling: Thermaltake SpinQ VT
Idle: 17 degrees C (yeah... i couldnt believe it either)
Load: 35 degrees C (tested using overdrive stability test for an hour)

ambient temp is around 15 degrees C at the moment, so thats probably helped it.

but then again, since nothing really uses six cores, my 24/7 setting will be

cpu: 1090t
24/7 oc: 3600mhz
24/7v: 1.325V (stock)
HT speed: 200mhz
cooling: Thermaltake SpinQ VT

--------------------------------------------------------------------------------

Last edited by Sever; 09-07-2010 at 19:10.

Quote:
Originally Posted by kcuestag
I know, but he's got a unlocked multiplier on 1090T, that is why it is working.

I also had a X4 965 before and I had no problems.

Problem comes with 1055T while OC'ing with the FSB (286 in my case).

It is a bIOS issue and there's no fix for it YET.

Even with this issue, do you think I've got a nice OC?

Should my PC perform well for at least 3 years?
Not quite true! Your GA-MA790FXT-UD5P does not support 2000 MHz DDR3, natively. The highest memory multiplier is 8.00X. To achieve a stable 3.94 GHz clock with this high speed RAM requires an HT reference clock of 303 MHz at 6.66x memory multiplier and 13X CPU multiplier. At a 250 MHz HT clock, the 8.00x setting would force a higher CPU overclock to 4 GHz with a 16X CPU multiplier. I believe that he is using the former. Either way, he was required to overclock the HT reference clock.

Nonetheless, you may notice that his 1090t Vcore is set to 1.385 and his RAM is running at stock speeds or very slightly higher. Both components require less power than yours to achieve comparable performance. Please also note that Sever mentions in his posts that he hit a wall in overclocking his CPU beyond 3.94 GHz. This limit is clearly not imposed by the CPU or the RAM, but rather by the thermal charcteristics of your motherboard. If you wish to clock your CPU or RAM further, you will need to enable the motherboard to dissipate more power and, by my reckoning, the only way to do so is to raise the PLL voltages.

Incidentally, upon further reflection, you may need to raise your DDR3 voltage to 1.75 V in order to achieve the 5-6-5-15-1T timings that I mentioned. The limits mentioned were for DDR3-1066 operation and your memory is clocked slightly higher. I hope that this clarifies matters.

Once you improve your memory performance to the equivalent of stock settings, your system will be ready for reliable operation for at least 3-4 years.

Quote:
Originally Posted by kcuestag
Isn't my current OC enough with 2.8Ghz NB?

So far I have:

286 x14 -> 4Ghz
NB @ 2.8Ghz
HT Link @ 2Ghz
RAM @ 1140MHz 6-7-6-15-1T 1.65v


Isn't that OC good enough? I was told by G-Skill on their forums a few weeks ago not to push the RAM voltage above 1.65v if I don't have RAM cooler >.<
Again, what you wrote is not true. Please cite your sources in the future. Your RAM supports voltages between 1.5 and 1.8 V, though lower voltages are admissible for underclocking purposes:

http://www.newegg.com/Product/Produc...ab=true&Page=6

The 1.65 V restriction applies to the x58 chipset. Actually, the true restriction is:

DDR3 voltage - CPU VTT <~ 50 mV. So long as your system temperature is relatively cool, I imagine that your RAM is sufficiently well ventilated.

Your current timings are providing you with an approximate 30% boost in bandwidth, which yields the equivalent of 1478 MHz at CL9. To achieve the equivalent of 1600 MHz 9-9-9-24 performance, you will need to tigthen your timings as noted.

Quote:
Originally Posted by kcuestag
What voltage would you suggest me to put? and what timings again?

Sorry if I was annoying.


And btw, here's my RAM:

http://www.gskill.com/products.php?index=222

What should I do then?

Just give it more voltage and tighten the timings? what voltage? I am scared to degrade my RAM or burn it :/
http://www.newegg.com/Product/Produc...D=3332167&SID=

I honestly see little difference between the two sets of modules aside from the heatsink. Your modules seem to have an extended cooling surface.

Do not reach for the sky on your first attempt. Tigthen the timings to 5-6-5-15-1T with 1.65 V. If that fails, try 1.7 and, finally, 1.75 V. You may also try 6-6-6-15-1T as a primer.

Quote:
Originally Posted by kcuestag
If it logs into Windows, is that a success?

With current 1.65v 6-7-6-15-1T I haven't done any RAM stress test, just Folding@Home on CPU and that's it.

Do you think I'm stable? I will give it a try for 5-6-5-15-1T.
Quote:
Originally Posted by kcuestag
I was able to get 6-6-6-15-1T on same voltage 1.65v:

http://valid.canardpc.com/show_oc.php?id=1423105

However, if I tried 5-6-5-15-1T even up to 1.75v it would not boot (Mobo makes a beep sound I think 10 or 11 times).

I'm guessing I've found my RAM's limit?

What would u do in my case? 6-6-6-15-1T looks nice.
Not necessarily, but you are awfully close. First of all, run Linpack with full memory load or the prime95 (3 threads) custom blend, LinX (3 threads) and Furmark cocktail if you please for at least one hour in order to be sure the configuration is truly stable. We do not need any hoaxes at this point.

If not, settle for your previous configuration. If so, try 5-6-6-15-1T. If that fails, try 6-6-5-15-1T. Then, give up. Good luck!

Quote:
Originally Posted by kcuestag
Ok I will run some Linx with this current 6-6-6-15-1T while I'm taking a shower.

Will update you back later.
Quote:
Originally Posted by kcuestag
Ok so at 6-6-6-15-1T I did this:



Despite the Gflops, I was running many programs in background like msn, utorrent, skype, steam... Therefor with all those closed I'm sure I can get over 75Gflops hehe.


With Core Temp gadget I've got on Windows 7, I saw that 83-87% of RAM was being used while Linx was runing.

Can I call these timings stable for gaming?
Quote:
Originally Posted by kcuestag
Hey,

Today it was kinda hot, and my temps reached over 50ºC, and realized 4Ghz was not stable at 1.45v I didn't want to push more voltage on it, therefor, lowered OC to 3.8Ghz:

http://valid.canardpc.com/show_oc.php?id=1435999

How does it look? I tried lowering timings to 7-8-7-24-1T and it didn't boot...

I needed at least 8 on the first timing to boot, so now it's staying at 8-8-8-24-1T.

Is it a good OC?
You can often learn a good deal by inferring a result from already existing data. For example, I recently fit a trendline through stable overclocking results for my previous E6600 build using similar chipsets. To my great satisfaction, my result very nearly overlapped the frequency/voltage relation. After updating my BIOS many years on, I was able to improve my result by 5 percent without raising the voltage.

You can learn a lot by performing a similar analysis for your configuration albeit with considerably fewer data points:

xd_1771 4.00GHz 2.77GHz 1.475v 1.30v 1642MHz (DDR3) 308 13 GA-MA790XT-UD4P
cold_fusion 4.00GHz 2.86GHz 1.44v 1.34v 1525MHz (DDR3) 286 14 GA-MA790XT-UD4P
kcuestag 3.81GHz 2.18GHz 1.37v 1.225v 1450MHz (DDR3) 272 14 GA-MA790FXT-UD5P

I, personally, find it very disturbing when an enthisuast motherboard is easily outclassed by competitors from the performance segment. Your chipset was specifically designed for extreme overclocking, reported to have achieved about 420 MHz bus for overclocking an Athlon 64 FX-62 processor from originally 200 MHz.

Please describe the nature of the instability that you experienced. Did calculations produce divergent results or individual cores disengage? Or did you experience system freezes, black or blue screens? At 50 C with a Noctua NH-D14 cooler, temperature is not likely to be the source of your instability. Pel4, Phobos, Kenolak and Alienguts have run their systems stably with temperatures between 68 and 73 C. My system, in fact, ran very stably at 65 C, this summer, though additional fans will prevent those conditions from recurring.

I suspect that either your RAM or the voltage regulators on your motherboard are defective. This may be due to many hours of running numerical simulations over a PPPOE connection at elevated voltages. The result would be the gradual erosion of interconnects in the metal layers of your integrated circuits, which would eventually lead to component failure. Your overclocking potential would, therefore, diminish progressively with use.

For the time being, your configuration is satisfactory. However, you may be obliged to diagnose and RMA one of your components in the not too distant future or build a new system based on the new Sandy Bridge architecture. I hope that I have been helpful.

Quote:
Originally Posted by kcuestag
Yeah, you were very helpful, all my hardware is fine, no degradation or anyything

It was just an issue with my Folding@Home settings I realized

Anyways, I want to keep it at 3.8Ghz for now, with current OC:

http://valid.canardpc.com/show_oc.php?id=1435999

I have a question...

My RAM is perfectly stable lowering timings to 8-8-8-24-1T @ 1600MHz on stock voltages.

However, at 3.8Ghz, I may be stupid at math, but I can't get to do 3.8Ghz and exactly 1600Mhz RAM :/

Anything I do either goes below 1500Mhz or above 1800Mhz RAM.

Could you help me do an OC to make the RAM exactly at 1600Mhz while also having 3.8Ghz and my NB at 2.6Ghz-2.8Ghz ?

Thank you!
Kevin.

PS: If you have msn/steam/skype, let me know, could be helpful over chat.
I am pleased to hear that your issue was software related. Nonetheless, there certainly is a problem with voltage regulation on your motherboard that will never be resolved. The only solutions that I can imagine are the use of ultra-low voltage RAM or disabling certain features in the bios like OnChip IDE Channel, OnChip SATA Type -> Native IDE, Onboard 1394 Function and USB EHCI Support. Have you already tried to use the DDR3 sockets most distant from the processor?

In order to achieve 8-8-8-24-1T @ 1600MHz, you will need to apply the following settings:

CPU Clock Ratio -> 12.5X
CPU Northbridge Frequency -> 9X
CPU Host Frequency -> 304
HT Link Frequency -> 7X
Memory Clock -> x5.33

Good luck!

Quote:
Originally Posted by kcuestag
@ 3.8Ghz I don't have any issue with my RAM, it only happens at 4Ghz.

Anyways, I will try the settings you gave me and let you know
Quote:
Originally Posted by kcuestag
I tried those settings.

The motherboard posted, however, while Windows was loading, I kept on getting BSOD's.

The numberswere ending on 0x00000...7E and 0x000....A1 or 1A dont reember.

Is that coz of RAm?

I tried bumping CPU-NB to 1.375v and RAM to 1.7v with no sucess, kept on getting BSOD's.

Whst should I try next?
Frankly, very few have had success with the 12.5X multiplier. You may need more Vcore in order to accomplish the settings that I recommended. To be sure, you may wish to loosen your timings further to 9-9-9-24-2T. If that works, then try 8-9-8-24-2T.

If it fails, proceed with these settings:

CPU Clock Ratio -> 13X
CPU Northbridge Frequency -> 9X
CPU Host Frequency -> 293
HT Link Frequency -> 7X
Memory Clock -> x5.33

This is certainly less than ideal; so try to raise your host clock as close to 300 Mhz as possible. Again, 7-8-7-15-1T timings are ideal, but you may have to settle for 8-8-8-18-1T due to the limitations of your motherboard.

Quote:
Originally Posted by kcuestag
Thank you.

I will try that OC later tonight, I am studying some Math now, but thanks again!

You've been really helpful for me
Quote:
Originally Posted by kcuestag View Post
Hey guys,

I have a question.

I currently have this OC for 24/7:

http://valid.canardpc.com/show_oc.php?id=1435999

And I am wondering, is it better to have:

8-8-8-24-1T

or

7-7-7-24-2T?

Just wanted to know because I can't drop the 8 latency if I keep 1T.

What would be better for my OC?
Yes, the lower latency is certainly better than the improved command rate. Do not bother with the HT link:

http://www.ocztechnologyforum.com/fo...-clock-is-best

The 13X multiplier usually yields the highest CPU frequency at a given CPU voltage, but higher temperatures due to the higher HT clock. This is not a concern for your system.

Quote:
Originally Posted by kcuestag
Hello,

Thanks for the answer.

I've tried lowering the multiplier to get exactly 2000Mhz HT Link, and some higher RAM speed close to 1600Mhz, but it always BSOD's with lower multipliers

Why is that? My CPU-NB is at 1.37v, I even tried CPU Vcore to 1.45v for 3.8Ghz (It does it at 1.37v on 14x multi).

I don't know what's wrong, can't I use lower multiplier... ?
Honestly, I cannot give you a definite answer to this question. Either your RAM's timings need to be slackened or voltage raised or it is yet another voltage regulation issue. Gigabyte and high-end ASUS boards tend to crave the 13X multiplier as, most often the HT reference clock can be raised without straining the voltage regulators. Surely, your board can handle much higher reference clocks. If the 14X multiplier works for you, stick with it. I certainly did because the performance of my RAM diminishes at frequencies above 1525 Mhz.

Quote:
Originally Posted by kcuestag
Thanks, I guess I am sticking to my current OC of 3.8Ghz

I tried 4Ghz and was stable, but I don't need that much power, I'm happy with 3.8Ghz

Edited by Headless Fansprings - 10/21/10 at 12:27pm
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post #1967 of 5036
Quote:
Originally Posted by lightsout View Post
Look at the first page of this thread and you can see what people are using. I am using the same volts as you for the same clock, but it seems the jump to 4.0 may require a bigger jump in volts.
Yeah, I need I think 1.45v or so for 4Ghz if I remember well or 1.42v

Quote:
Originally Posted by Headless Fansprings View Post
I have read your many posts and will try to address all of your questions catagorically.

The Embedded Controller (EC) firmware drives the Advanced Clock Calibration (ACC), thereby allowing locked cores to be enabled. The update may have enabled all six cores on your 1055T when you upgraded from your 965 BE.

You probably could raise your DDR3 voltage to 1.7 V without comprising its longevity. However, your RAM timings should also be tigthened to about 7-7-7-20 in order to maximize performance.

The HT refernce clock is not a bottleneck for your particular board, the GA-MA790FXT-UD5P. It should reach 320 MHz with relative ease. However, total dissipated processor power (TDP) may only be limited to 140 W. Therefore, you may be obliged to trade some MHz from your CPU for better memory performance, in particular by raising your Northbridge frequency.
Thing is, my RAM is CL9, so I can't tight it to CL7 :/ I already tried at 1.7v

About the other 2 things, thanks for answering, pretty good post, thank you.

Anyways, I decided to stay on 3.8Ghz until the summer is over, I don't like my temps going too high with 4Ghz (Almost 55ºC adding the extra 10ºC from core temp But yeah, I don't like temps above 50ºC).

These days it's pretty hot, inside my case it's 28ºC according to a sensor I've got from the fan controller, and I've got no A/C here in Germany.
    
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post #1968 of 5036
Totally forgot.

FSB/Multiplier: 215/14
CPU Speed: 3010
NB Speed: Stock
CPU Voltage: 1.375
CPU-NB Voltage: Stock
RAM Speed: 1433 7-7-7-15
Motherboard: GA-890FXA-UD5
Model: (125w or 95w) 125w

Its about the baby steps.



Edited by Blueduck3285 - 8/21/10 at 7:51am
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post #1969 of 5036
Quote:
Originally Posted by Blueduck3285 View Post
Totally forgot.

FSB/Multiplier: 215/14
CPU Speed: 3010
NB Speed: Stock
CPU Voltage: 1.375
CPU-NB Voltage: Stock
RAM Speed: 1433 7-7-7-15
Motherboard: GA-890FXA-UD5
Model: (125w or 95w) 125w

Its about the baby steps.
Well, if you're patient, and don't mind taking baby steps, that's a great way to OC to be honest
    
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post #1970 of 5036
Thanks chaps - what gets me worried about messing around changing voltages is the big red flashing 'Voltages not optimized' message in the BIOS!

If I were to go for the following settings, what would likely be stable voltage settings for Vcore, CPUNB etc? (In fact as soon as I switch to manual for the voltages I have to set each item, auto is no longer a choice - I assume all voltages are to be set to 'Normal' except for Vcore and CPUNB?):

CPU - 3800mhz (12.5x 304)
CPUNB - 2432mhz (x8)
HT - 2128mhz (x6)
RAM - 1620mhz 7-8-7-20
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