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HELP: Overclock Q6600 with EP45-DS3L - Page 2

post #11 of 18
Thread Starter 
So I am able to boot again and running small ffts for a few minutes first.

I changed my timings for my RAM to something suggested by OCZ forums. It was 5-5-5-15. Did not change the voltage.

Question:

1. So loose timings does not necessarily mean it would work I guess? I was running looser timings because I thought it would work better or rather it would work right away. If this is the case and you HAVE TO tighten timings to make it work, where is the basis in this? I have found references on the voltages, formulas and such but I have yet to find the timings, it's always based on the manufacturer's site but I thought, you adjust accordingly based on OC and MoBo specs as well. idk.

2. If I upped my OC to like 3.6, I would obviously adjust the voltages accordingly but would I need to adjust the timings again? based on what? hehe.
post #12 of 18
Generally loosening the ram timings will allow higher ram clocks. In your case I am not sure why you had to tighten the timings. Maybe using auto set one of the timing to low and manually setting them fixed the issue. You may have to change the divider on the ram if you overclock your cpu more as the FSB will increase. If you cannot change the divider and are forced to increase the ram frequency then you may have to mess with ram timing/voltages again.
1337
(16 items)
 
  
CPUMotherboardGraphicsRAM
Xeon W3520 ASUS P6TD GtX 580 Hydro Copper 2 OCZ Gold DDR 3 1600 
Hard DriveHard DriveCoolingOS
OCZ Vertex 2 128 GB samsung spinpoint f3 2x500gb raid 0 koolance exos 2 Windows 7 
MonitorKeyboardPowerCase
26" 1080p lcd Razer Blackwidow Ultimate Toughpower 750 watt ABS 
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logitech G9 Func F30.R x-fi / tutle beach head phones 
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1337
(16 items)
 
  
CPUMotherboardGraphicsRAM
Xeon W3520 ASUS P6TD GtX 580 Hydro Copper 2 OCZ Gold DDR 3 1600 
Hard DriveHard DriveCoolingOS
OCZ Vertex 2 128 GB samsung spinpoint f3 2x500gb raid 0 koolance exos 2 Windows 7 
MonitorKeyboardPowerCase
26" 1080p lcd Razer Blackwidow Ultimate Toughpower 750 watt ABS 
MouseMouse PadAudio
logitech G9 Func F30.R x-fi / tutle beach head phones 
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post #13 of 18
I have the same mb as you, except for a R at the end for Raid, but the cpu is a dual-core E5200 which has some similarities with your cpu but also some things differ like heat dissipation and manufacturing process. Anyway i could oc from stock 2.5Ghz to 3.1Ghz relatively easy by changing the FSB, and it seemed it could go higher with stock voltage, and other people said so, that it would go to around 3.4.

At first i started with 2.8, i got it to work pretty easily, but at 3.1 it wouldn't boot at all in the first tries. Then i started to change those "memory straps" ? ratios those things with 1.33A 2.66B, i belive you have the same menu\BIOS, and found one that worked, and the system was stable as with the stock speed. Didn't try too many just tried a couple intuitively, so that the memory speed resulting was below 800Mhz, which my RAM's are rated at, but as near to 800 as possible. I think i got something like 680 or 760MHz for the memory. Don't remember about latencies. I read somwhere in this forum i think that speed is not too important for the memory as the quantity is.

I ran Prime95 for some time and kept the oc for a few days, and i don't remember any problems. I went back to 2.5GHz cause i only have a stock cooler now and it would get a little hot, low 60's or low 70's, don't remember which now. Interesting thing is that the difference in temperature between 2.5 and 3.1 was very small, like 3-4 degrees Celsius at maximum temp, but i still want to get a better cooler, am looking for a really good one now.

I have the same core voltage as you: 1.120V , except yours is a quad-core..

Your temps look like wow, 50C overclocked at 3.00 is great. Except if you are using that Easy Tune thing to get the temperatures, that program is kinda crappy, the temps at least are way off by 10C or more, but i don't think you are.

I think the way to do it for you too is to keep the multiplier at max. = 9, lower multiplier and higher fsb wouldn't boot for me too often.

I also learned a coulpe of things from your posts , like to keep the PCI-E locked to 100MHz, i know i wanted to do that, but don't know if i managed to do it, i will look for that option, so thank you and good luck with your oc !


P.S. I didn't disable any of the power saving features
post #14 of 18
Thread Starter 
It's still failing the blend tests unfortunately.

So I'm following the rated timing for the RAM which is 5-4-4-15 but I have set everything else to auto. My ratio is 1:1 anyway. I am guessing the rated timings from the mfr is based on the rated speed? 800MHz/2 = 400MHz.

I upped my MCH and VTT voltages a little more.

If slowing the down the RAM is trying to get a lower ratio, is this what you mean? , then the only way to do it for me for my BIOS is to lower the FSB and up the multiplier to 9. Something like 360 * 9 would still get me to 3.2GHz. My problem with this is I don't get how the other settings will follow?

I am trying to find a datasheet for this RAM online but can't find any. Maybe it will give me a clue on how I can OV it properly and get it stable according to FSB, VTT and MCH voltages. Or what timings I can change to possibly make it work! *sigh*

OCZ2P8004GK.
post #15 of 18
Thread Starter 
Hey guys, I have good news! Setting those timings seem to stabilize my OC! I mean, it's too early to tell but when I ran blend tests earlier it would die at test 1 or test 2. I'm at test 8 at the moment! biggrin.gif

Andre, Thanks for the advice. I did not use easy tune at all. I installed it a week ago or so before actually spending time to OC just to see if it was an easier option. When you realize that you can understand what the things in the BIOS says more than a software that has "GUI" then that definitely says something about that software. It's crap. Totally agree with you there.smile.gif

Hey 1337, I think the 5-4-4-15 timings worked for me because that's the timing at it's rated speed which is 400MHz. Maybe I just needed to power the MCH more because of the OC. I know these timings worked at 333 * 9 OC earlier as well but I had to OV the settings as well as it would not work with auto voltages if I remember correctly. In my case, my theory is, I *think* loose timings mean I should use lower FSB and can use lower OV's and tighter timings are for higher or closer to rated speed/FSB of the RAM but need to power it more. This is probably why the timings kept getting more "loose" as I raised the OC because I was not raising the MCH voltages at all but the RAM would not really work properly outside it's rated numbers. Maybe? lol.

Aaaand tests (test 6 of batch 2) still going! Temps are 50C and staying put. biggrin.gif

If this works, I think I will stop here for a bit and contemplate on what I learned. I will see if my cooling can take 3.6GHz. I will post my current BIOS settings as well and summary of relevant specs for the 'next guy'.
post #16 of 18
Was just writing an answer, but i saw you posted..

I'm glad it worked. You did 360x9 ?

Some or most ram i see it's pretty sensitive to these changes, speed, timings,etc..

It's a pretty high increase from 2.4 to 3.2. I think you can go higher and keep the temps under 60C, i see the people around here keep it at 70s or 80s cause the max temp for these cpu's are 95C or 105C or something like that, i don't know if for all or which ones. I prefer lower temps like max. 65C with highest stress.

Could you tell me where in BIOS is that setting to keep the PCI-E at 100MHz, that means to keep them non-oc, at stock speed, even if the fsb is increased right ?
post #17 of 18
Thread Starter 
Hey, I used 400 * 8. I really did not want to use anything apart from 400 because, well, the math checks out? lol. I don't know what I would do if the numbers weren't whole anymore! heh.

I stopped the stress test at about 1hr and 30min mark because I had to go to work but I wanted to make sure I can remote in my machine. I know I am paranoid but just in case! No errors though and highest temp was 52C.

For your question, I'm not really sure for the actual answer on why you keep it at 100MHz but I assume so it does not OC the RAM automatically and cause you problems. After I typed this, it actually sounds like exactly the same as what you said, so yah.

In my BIOS, it's still under M.I.T where you change the CPU Host Clock (FSB).

I found an image: Under Clock Chip Control:

http://img.photobucket.com/albums/v487/xfezz/oC_2.jpg
post #18 of 18
Thread Starter 
Stable with prime95 blend test! I ran it for another 16 hours! yey!
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