Q6600 @ 3.8ghz - But plenty BSOD's

[toon_mad]

Q6600 @ 3.8ghz - But plenty BSOD's [RESOLVED]

Ok, ive got my quad reasonably stable @ 3.8ghz, in XP im normally good for about 2-3 hours or so, as soon as i enter gta that 2hr stable drops to about 20 minutes if im lucky.

I keep getting blue screens with stuff like irq_not_equal and what not, here is the setup:

 

[Pneumonic]

sounds like a memory issue

 

[toon_mad]

its new ram, as of yesterday

 

[Pneumonic]

Edit: Just saw your screen shot (wasnt comming up before!)

RAM is rated at 2.2v so would increase the RAM voltage and see if that helps

Your NB voltage from everest looks on the high side to... although if it was stable with two sticks before wouldnt change that yet

 

[toon_mad]

previous ram:

4x1gb corsair xms2 6400 running at 5-5-5-18-2T, voltage at 2.1v

new ram:

2x2gb ocz platinum 8000 running at 5-5-5-18-1T, voltage 2.1v, MCH (NB) at 1.56v

 

[Pneumonic]

I would slow the Command Rate to 2T

 

[toon_mad]

oh, i thought 2T was for 4 dimms only and 1T for 2 dimms.

will i suffer any performance hit putting it at 2T?

I guess stability is more important though!

 

[Pneumonic]

performance is slightly worse on the inital access of the RAM.. but not that you would notice in real world...

Friad not.. 2T is "standard" as far as I am aware... will run @ 1T but on slow timming or frequencies...

 

[toon_mad]

Edit: Just saw your screen shot (wasnt comming up before!)

i know, it comes and goes here too

ok, ive set it 2T, do you think i should go back in bios set it at 2.2v and maybe drop the MCH to say 1.52v?

 

[toon_mad]

ok, so ive done this as suggested:

MCH: 1.52v
Command Rate: 2T
Timings Now at: 5-5-5-15
DDR2 Voltage: 2.150v (went between 2.1v and 2.2v)

So far so good, no scary blue screens. GTA still crashing after about 30 minutes however, might just be the game or something.

Do you think with this board and quad/memory setup i have i could it 4ghz? Im using a ultra 120 soon will have a push/pull config. My new fan will produce around 98cfm


Hull knocked us out of fa cup

 

[1kiwi]

With that sort of voltage you Overclock is not going to last long anyway

NB: Have you tried settings you 8800GT clock to default?

 

[Happy]

With that sort of voltage you Overclock is not going to last long anyway

NB: Have you tried settings you 8800GT clock to default?

Yeah surprised no one else pointed that out.

 

[toon_mad]

doh! its the only way i can get to 3.8ghz, should i drop it?

I can get 3.6ghz with only around 1.52v

Gfx card is no longer overclocked, i think im best dropping to 3.6ghz and wait until i get the gtx 260 from here

 

[1kiwi]

ignore

 

[PaulyD]

Have you actually stress tested the overclock to prove its stable? as in a good few hours of prime small and blend?

 

[toon_mad]

with that vcore and everything it passes everst stress test 1hr 40 mins then i cancelled it, i dont like prime95.

I found GTA crashing because of my nvidia drivers, ive dropped it down to 3.6ghz vcore 1.56v

If anything above that is too high then how can i get 3.8ghz which is what i wanted

 

[1kiwi]

You will not be able to safely sustain 3.8 Ghz @ those volts for long. If you want 4Ghz + buy a Q9650.

 

[cooljimy84]

I was just about to say 1.5/1.6 is kinda high !!! i do benchmarks at that on water and i get kinda nerves about that kinda volts.....

 

[toon_mad]

is there a way to achieve a higher overclock, or infact keep it at 3.6ghz without the need for such a high vcore?

Heres what ive got @ 3.6ghz:

FSB 400*9
DDR2 1000mhz Dual-Channel
PCI Express 100Mhz
Vcore 1.530v in Cpu-Z
DDR 2.1v
CPU VTT 1.35v
MCH (NB) 1.41v
ICH 1.25v
ICHIO 1.65v
GTLREF 75%

Would lowering the vcore and upping the VTT,MCH and GTLREF allow for the ideal overclock?

Im worried now using such a high vcore, even though my temps are good it is a lot of volts getting pumped through

 

[cooljimy84]

my Q6600 does 3.6 at 1.33 volts (in cpu-z), with a PLL of 1.50 volts.