Q6600 won't overclock

Hungryjoey

Hungryjoey

Hungryjoey

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Hey guys, I'm new here. Been a non-registered reader for a while now tho :cool:

Anyway, I recently picked up my q6600 (G0), Asus P5N-e SLI 650i, 2 x 8800GTS 320MB's etc.. (Spec is in sig). I have been trying to overclock and I am having big problems getting past 2.9Ghz. Even at 2.9Ghz it is getting a little unstable (1 or 2 random freezes). So I am sitting back at stock now until I can figure out why I can't get this G0 to overclock.

I have tried all kinds of combinations such as running the ram @ 667Mhz(unlinked) and FSB at 1290x9 (2.92ghz) and have even brought the ram down to 400mhz and loosened the timings (all run at 2.1V) and ( 1290x9 ) and still with the same results. It just locks at the post screen and does not go further or into BIOS. Once the CPU hits 2.9/2.92 Ghz it wont go past post screen or go into BIOS.

I have given the CPU up to 1.4v to see if it was the CPU lacking voltage but still the same results, I have tried giving the ram more V's but same result everytime. I am running the NB at 1.56v (2nd highest availible) but still getting the same results.

To sum it up the sytem is completly stable at 2.88Ghz (1250 x 9 ) RAM @ 800mhz 4-4-4-12. If I try for 2.9ghz it wont go past post screen even if I lower the RAM right down. I have come to the conclusion that it is not the ram as no matter what settings I have the RAM at it still results in the same problem.

I'm really annoyed at this stage as I was hoping for a 3.1/3.2Ghz eazy and stable Overclock but cant even get it stable at 2.9.

Also I am running it with a Zalman CNPS8000 and the tempretures never go above 47'c @ load so Tempreture is not a problem.

Any hints guys, I'm really hoping one of you experts can help me out, I think I've tried everything I can think of.

Thanks,

Hj
 
try reducing the multi and see what the max fsb you can get it, might be hitting board limit as 650/680i boards arent the best at clocking quads.
 
jabski said:
up the vcore more and see if it helps.
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Hungryjoey said:
Snip
I have given the CPU up to 1.4v to see if it was the CPU lacking voltage but still the same results, I have tried giving the ram more V's but same result everytime. I am running the NB at 1.56v (2nd highest availible) but still getting the same results. Hj
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As RaiderX suggests lowering the multi and confirming the max fsb is a better approach as the op has already put 1.4v through the CPU. NB+ and memory+ which would suggest the boards limit has been reached at the higher multi. Upping the Vcore will not solve the problem. Lowering the multi is a methodical and sound approach as RaiderX suggests.

As a suggestion the motherboard may have a FSB hole. Have you increased the FSB by 50-70mhz when you hit 2.9Ghz and cant post?
 
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this board has bad vdroop. hense the vcore comment. But i do agree the correct way is to do as RaiderX said.
 
Thanks guys. Will try this out tomorrow morning. Not in the mood at 5AM to have to play with this thing. :D

Also, I have noticed over the last 2 days when the system was sitting at 2.9Ghz or 2.88Ghz and the system was powered down at night. When I power it up the next day it gets stuck at post screen. I have to pull the CMOS battery out and start again. Although @ 2.88ghz it all runs stable and I can shut it down and start it up again without any problems. But from what I can tell is when I leave it over night it doesn't want to boot properly. I'll take further observations of the next day or 2 as its hard to distinguish where the issue is coming from.

I'm thinking about changing this board already, I'll sell it off and get a better one. Especially if I can't get any more juice out of this board as it seems (from googling) that i'm not the only person who is having problems Overclocking on the P5N-e board. But the problem is, any new board I get would have to be SLI. So we shall see how it goes & how stable it is. SO far I'm not overly impressed at all. Any idea's ?

Hj
 
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if its an sli board your after the 680i motherboard but the 780i are due very soon supporting pci2 and tri sli

as jabski recommends updating the Bios may help
 
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OH yeah, I forgot to mention that I updated the BIOS too. Again, VERY same results. Just don't want to play stable at 2.9.

As asked above, Yeah I hear there is a FSB hole and I have tried a huge FSB jump again very same result.

So tomorrow I shall try to find the highest FSB the sytem will run at, with a low multi.$

If the 780i is due soon ( probably going to be $$$ ) but I will take a look at it I guess, as an upgrade option soon if I do decide to change the board. Is there much more OC'ing potential on the 680i chipset though or is Overclocking & SLI in general a bad idea?

Thanks,

Hj
 
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jabski said:
have you got anywhere with it yet ??
Click to expand...

an update would be nice

there is good over clocking potential on the 680i motherboards. The 780i are the 680i boards but with pci2 and tri sli support.

Asus maximus has been getting some good reviews on the forum. If sli is not going to be a main feature the maximus motherboard board would be worth a bit more investigation. The board will support 45nm (Pennryn) as well. http://forums.overclockers.co.uk/showthread.php?t=17789878

I have never used X2 GC. although i would imagine there would be some hindrance to the OC due to the pci lanes and most probably be IRQ related BSOD? when O/C. You may need to look in to that area a bit more.
 
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If you are buying a new board first considerations should go to P35 X38 and 780i boards

650i and 680i are good boards but have problems with vcore stability though the 680i can be fixed with a mod, but why buy a NEW board to face these issues.
 
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Sorry guys about not updating. Got called into work all day so I didn't have the chance to investiagte the FSB max.

I would have went for the P35 or X38 boards, but they aren't SLI?

Hj
 
Update: I lowered the CPU Multi to 7 x and tried the usual 1290Mhz fsb and it wouldnt go past POST screen. Same result as if i had the multi @ 9 x 1290Mhz.

Now its looking like the board doesn't want to go past 1290 ? :(

2ND UPDATE: I reset the BIOS and touched nothing accept for the FSB and Multi. I set it to 1290FSB / 7X multi and it booted up fine. But I have discovered that as soon as I change the NB voltage from AUTO to 1.56V it wont go past POST screen. I tried this several times and as soon as I touch the NB voltage I'm getting this issue :S

Update 3 : Ok well I have lowered the Multi, tried putting loads of V's into the CPU, NB and RAM, Tried AUTO V's on everything. I have also tried lowering the ram to 667Mhz and raising the FSB to 1290 and I'm still getting the same results.

Last update : I set the RAM to 667, NB to max Voltage which is 1.76v and multi x 7 and I got to 1330FSB Stable, after that it wouldn't post. (40more then 1290)

Is there something else i am missing that can let me raise the FSB like PCI-e settings or SATA settings or anything at all ? I'm so confused.

I really think its just this board that's a pile of cr@p!

Hj
 
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Looks like you have a bad board there.

i have the 680I and running @ 3.51ghz with my quad..

i suggest you change boards and the current best board for sli users is the 680I :P
and if your looking for a good deal i have a brand new unused 680I for sale in the sale section but then again you dont have access to that but you could shoot me a email ;)
 
One last attempt I had was to try to see if there was an FSB hole. I tried a big jump to 1410mhz but again = No luck :(

680i board I think it is so!

Hj
 
New board I guess it is :) It is rock solid at 2.88Ghz 1.29v (1250FSB) x 9 DDR800 4-4-4-12 1T @2.1V, so that will do for a while but I'm loosing out on bucket loads of FPS in somegames that appear to be CPU bottlenecked.

Thanks guys for the help

Hj
 
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