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AMD Zosma 960T/1600T/1605T CPU Club - Page 252

post #2511 of 2795
Quote:
Originally Posted by givmedew View Post

Well you can't really measure the temp in x6 mode so I am guessing you are going off your motherboards CPU temp. This can be 10 degrees high. You may be telling me these temps by making the comparison yourself and just adjusting for the difference if so then bravo but my guess is 50c motherboard CPU temp is just fine and probably actually 40-45 degrees.

Even 50 is fine. If you are not happy with 50 then turn down the vcore and run at 3.9GHz. I can say that absolutely with out any doubt in the world that you can use Turbo even at those speeds. Turbo gets into 1.45v but that is fine for Turbo. You can back down your clock enable turbo set it to 4.1 and do lots of testing.

To really test turbo download TMonitor. Do some bench marks with turbo on and off on lightly threaded applications. You should notice in CPU-Z when you run a prime with 1 thread and set the affinity to a single core that it runs at the higher multiplier. TMonitor will visually show you when the cpu is boosting normally which CPU-Z probably wont show without the turbo really hooking. You will notice in benchmarks that if turbo is running properly that your score will go up on lightly threaded benchmarks. Windows CPU score will be higher with turbo on than off if turbo is functioning.

It will only increase the speed of 1-2 process applications but hey that is most applications anyways.

To test for stability use Intel Burn and set it to 1 or 2 threads let it run and make sure TMon is showing some turbo spikes... To verify Turbo is functioning in Intel Burn then write down the speeds at which you finish burns with turbo on and with it off. Intel Burn will show you the speed you finish each test. Intel Burn is really just a front end for an already existing benchmark which is why I like to use it for testing turbo modes.

If you have difficulty getting stable then first you probably are not using offset mode and second you use AMD Overdrive to adjust your turbo voltages. I was able to get mine stable without using AMD Overdrive. Overdrive can also increase the amount of cores that can be used in turbo mode but stay away from that. I know the CPU (x6 version) is designed to run more cores in turbo but just leave it.

----


just my opinion...

Also 2 fans on the hyper 212 is not a big deal so you can always buy a used server fan off eBay for $10 and the fan header off performance-pcs. Then you will have an extreme performance PWM fan for ~$15-20 that would cost much more if you bought it outright with a compatible plug on the end of it.

If you want the exact model number of the fan to use just let me know. I have bought tons of them and converted them... for the most part the sound output is the same per performance meaning that running it at a speed that provides the same cooling will be the same volume but you will have the option of ~4000 rpm. One of these things almost took off my toe and exploded when I tested it and it lifted off the ground and then hovered over to my foot. I now test them in a much safer way smile.gif They are extremely heavy and well built... they are designed to be ran in extreme conditions for years. I would guess that they would cost $35-55 to buy a similar fan with the same quality but hey I could be wrong. IMO it outclasses the gentletyphoon but that's just opinion.

Either way if you need more cooling and you are not already using an extreme fan then that may be a good idea for you. Push pull usually does very little.

You can also modify the 212 to pull in cold air. To do that make sure the fan is blowing air from the rear of the case to the front of the case remove the rear exhaust fan and use something like construction paper to make a duct that goes straight to where exhaust fan was. You can keep the exhaust fan and just make it an intake fan and duct to the fan. Either way you will be pulling external air instead of internal air which will reduce your temps.

Also I used construction paper to close off the side of the heat sink so that air could not escape out the side and was forced all the way through the sink. Not sure if that mattered or not I don't think it would make a big enough difference to be measurable but I figured at 4000RPM air was going to go through and out the sides.

Thanks for the response. Actually I took some time tonight to figure out what my problem is with x6 cores unlocked OC'd. As far as I can tell based on major trial and error is that my chip becomes unstable at x6 cores when voltage is at 1.30v and above. I reduced the voltage to 1.2975 and everything seems stable. I also upped my NB voltage from 1.12 to 1.15 which seemed to help stability slightly. The problem with not being stable above 1.3v is that I can only get a stable OC at 3.4ghz with TC enabled to 3.6ghz. Have a look at the attached photo. I ran prime for about 4 hours with no problems so far. This is the best OC I've been able to bleed out of this chip at 1.2975v. You are correct the temperature numbers I was quoting were the MB CPU temps not the core temps as you cant read the core temps at x6. Why is that? So if your saying those numbers are typically 10 degrees hotter then the core temp I should be OK with the temperatures Ive got. Thanks for your help and any additional input into dialing it in a little further would be appreciated. My ram is set at 1.65v 1600. Thanks.

Z
post #2512 of 2795
Just a quick question, what's the highest temp you guys have seen your 960t hit and for how long, i got back from class today to see warnings from ai suite that my cpu was 65c + sure enough opened up speed fan and it was hitting 67c ! must have been running at the temp for about 1-2 hours. Its still runs perfect but do you think it would have caused some amount of degradation ?

I forgot i installed that folding thing and it ran at boot........
    
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post #2513 of 2795
Quote:
Originally Posted by JoinTheRealms View Post

Just a quick question, what's the highest temp you guys have seen your 960t hit and for how long, i got back from class today to see warnings from ai suite that my cpu was 65c + sure enough opened up speed fan and it was hitting 67c ! must have been running at the temp for about 1-2 hours. Its still runs perfect but do you think it would have caused some amount of degradation ?

I forgot i installed that folding thing and it ran at boot........

should not have damage it. i got my mobo to shut down at 70C in case my water pump fails.
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post #2514 of 2795
Quote:
Originally Posted by zeitgeist911 View Post

Quote:
Originally Posted by givmedew View Post

Well you can't really measure the temp in x6 mode so I am guessing you are going off your motherboards CPU temp. This can be 10 degrees high. You may be telling me these temps by making the comparison yourself and just adjusting for the difference if so then bravo but my guess is 50c motherboard CPU temp is just fine and probably actually 40-45 degrees.

Thanks for the response. Actually I took some time tonight to figure out what my problem is with x6 cores unlocked OC'd. As far as I can tell based on major trial and error is that my chip becomes unstable at x6 cores when voltage is at 1.30v and above. I reduced the voltage to 1.2975 and everything seems stable. I also upped my NB voltage from 1.12 to 1.15 which seemed to help stability slightly. The problem with not being stable above 1.3v is that I can only get a stable OC at 3.4ghz with TC enabled to 3.6ghz. Have a look at the attached photo. I ran prime for about 4 hours with no problems so far. This is the best OC I've been able to bleed out of this chip at 1.2975v. You are correct the temperature numbers I was quoting were the MB CPU temps not the core temps as you cant read the core temps at x6. Why is that? So if your saying those numbers are typically 10 degrees hotter then the core temp I should be OK with the temperatures Ive got. Thanks for your help and any additional input into dialing it in a little further would be appreciated. My ram is set at 1.65v 1600. Thanks.

Quote:
Originally Posted by JoinTheRealms View Post

Just a quick question, what's the highest temp you guys have seen your 960t hit and for how long, i got back from class today to see warnings from ai suite that my cpu was 65c + sure enough opened up speed fan and it was hitting 67c ! must have been running at the temp for about 1-2 hours. Its still runs perfect but do you think it would have caused some amount of degradation ?

I forgot i installed that folding thing and it ran at boot........

To the thing about not reading temps in x6... all of the locked AMD chips that I have unlocked where this way. The goes for x2s that I unlocked to x4 and x3s that I unlocked to x4 and x4s I unlocked to x6. Also the name of the CPU changes and it doesn't match any production CPU.

To get an idea of what your temps are you just look at the MB-CPU and the CPU-Core temp while in X4 and under load. It wont be perfect but you can just figure the difference in percentage and apply that to your x6 readings. Or you can just go by a set amount of degrees it is up to you. The actual temp will likely be an amount of percentage off and not a fixed number but its not a big deal.

So if in x4 your MB-CPU reads 50c and your CPU-Core reads 45 then if you are in x6 mode and your MB-CPU is reading 55c you guestimate that you are ~50c


To JoinTheRealms... it has been a while since I had my 960 but I highly doubt 65c for a few hours is going to do anything at all. I know some people disagree but I think extreme voltages even with safe temps are going to cause more problems than high temps because the CPU has temperature protection.

I really hammered on some of the chips I had... Not my good 960 sample (didn't need to) but all the other chips I really beat on them and I can tell you that even running very cool under water I have seen NB or whatever you want to call it degradation. Meaning that I could no longer run as high of speeds on the NB or HT link or whatever cant remember what its called because I am all Intel for the last 9 months. But yeh that is the only degradation I have ever seen.


Don't overclock what you cant afford to take out of the computer and stomp on. That being said def don't overclock the last 10-15% of a CPU if you are not doing it for fun and if you can't afford to loose it and that being said I can not express the level of performance that I got out of a XSPC Rasa750 water cooling KIT for around $120. So for the cost of a replacement CPU you could really drill those temps down.
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post #2515 of 2795
Quote:
Originally Posted by JoinTheRealms View Post

Just a quick question, what's the highest temp you guys have seen your 960t hit and for how long, i got back from class today to see warnings from ai suite that my cpu was 65c + sure enough opened up speed fan and it was hitting 67c ! must have been running at the temp for about 1-2 hours. Its still runs perfect but do you think it would have caused some amount of degradation ?

I forgot i installed that folding thing and it ran at boot........

I'm running at about 43c full out on x4. I've touched the mid 60's but only for a few seconds when adjusting fan speeds. Since it was only a few hours you should be alright. I believe that the temp range for a comparable thuban chip is about 65c max with optimum below 55c. You should be fine. 70c and above for extended times I'd start to get worried.

Z
post #2516 of 2795


Here's what I've squeezed out of my 960t on x4. 16.5 : 250 CPU ratio. Runs at 4.125ghz 1.4v. TC, C1, C'n'Q Disabled. I may need to drop the multiplier down to 16 possibly as I seem to be pushing the edge at 16.5. Do you think upping the NB voltage will allow me to be more stable at 16.5 and above without raising the cpu voltage? OCing the x4 is a breeze compared to the x6. I have a nagging feeling one of my cores is bad because it seems to be the same core the hardware fails in prime95, the 1st core, does this make sense?

Z
post #2517 of 2795
sorry meant 4.2ghz
post #2518 of 2795
Ok so 4.2 & 4.1 did not work out. About 4 hours into prime95 and BSOD. Back to 16:250, 4.0ghz. Seems like this is going to be the ticket since 1.42v is about as high as I would like to have my chip. I think the limit is 1.47v but I don't want to risk it and hope to get some longevity out of this chip.

Anyways gonna wrap up my posts with my final x4 overclock setup on the chip. I'll post any updates on the x6 if I can ever figure out the problem overclocking it.

Cheers,

post #2519 of 2795
Quote:
Originally Posted by DeeJaySypki View Post

@The Fryer
I know that and i try all settings to fix this and nothing. This model of motherboard or just my have this fluctuation of voltage during Full Load with Load Line Calibration "LLC" on (no vdrop in cpu stress, even vboost biggrin.gif ). And the fluctuation of FSB is i think some malfunction of my mobo frown.gif meyby. I need NEW one xD
Example how hight this mobo rise voltage in LLC:
We want 4x3Ghz and 1.164v all most no rising voltage (low TDP cpu and all most no vboost from LLC)
We want 6x3Ghz and 1.164v but in stress LLC rise voltage to 6x3Ghz 1.164v sometimes to 1.172v (low TDP cpu and all most no vboost from LLC)
We want 4x4Ghz and 1.392v but in stress LLC rise voltage to 4x4Ghz 1.404v
We want 6x3900 and 1.404v but in stress LLC rise voltage to 6x3900 1.428v or even depend of stress test to 1.440v

I will can do better OC but this fluctuation FSB and voltage stop me a 6x3900 jumping to all most 6x4000 at max voltage 1.440 (i don't want add moor voltage frown.gif


@zeitgeist911
Do you check temperature of heat sink in power section in motherboard ? becouse for 4x3Ghz and 4x4Ghz and 6x3Ghz is perfectly fine but when we do oc 6 core this heat sink start be pretty hot and nice will be if there is just a little colling smile.gif Try using k10stat program to control your 960T, it is very small, fast and good program to OC and DownClocking smile.gif
Do you have 2x4GB ram ? If yes try remove 1stick and check OC. This is just suggestion smile.gif
Max temp on CPU in x6 is 55C and max voltage by AMD company 1.4v but i think if you have good coller and good temperature like 55C or low on CPU and not too hot power section of motherboard you can rise voltage to 1.440v and your CPU easily will work many years smile.gif

1.4v and moor with x6 start really worm up the power section of motherboard !

Quote:
Originally Posted by zoomer-fodder View Post

Hello, i too have a M4A89GTD-PRO, and too have FSB (+4.5) jumping.
This is about LLC. I just forget about it and leave LLC on! but i have it with my BroPC on Deneb:
http://pix.academ.org/img/2013/03/31/909b3c8eeaa1cb7c4b213404dc7cb8f6.png

Quote:
Originally Posted by zeitgeist911 View Post

Ok so 4.2 & 4.1 did not work out. About 4 hours into prime95 and BSOD. Back to 16:250, 4.0ghz. Seems like this is going to be the ticket since 1.42v is about as high as I would like to have my chip. I think the limit is 1.47v but I don't want to risk it and hope to get some longevity out of this chip.

Anyways gonna wrap up my posts with my final x4 overclock setup on the chip. I'll post any updates on the x6 if I can ever figure out the problem overclocking it.

Cheers,



Been running mine 4.15MHZ @ 1.51v for over a year now thumb.gif
Try turning LLC off. Keep your VRM's cool,and think about a better cooler.

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post #2520 of 2795
i have got my 960T unlocked x6 with asrock 970 extreme 4,3.6Ghz@ 1.4V normal clock's,(24/7,but i have used 3.8Ghz@24/7 too 1.5V),max clocks i have got 4.0Ghz
Info: http://valid.canardpc.com/2663197
umh,my mobo show 1.616V for these clock's,but i placed 1.6V,well,i dont care about that smile.gif
maby i should try raise my clock's when i buy second 7870,but it's then,not now,
Edited by Gereti - 4/19/13 at 2:28am
    
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