Q9550 @ 3.83GHz -- Stable enough?

[zerogear]

I'm curious, I just ran 400 passes of IntelBurnTest, passed 100%. And I ran Prime95 for 8 hours. Is there any other I should run to confirm stability? I tried SuperPI Mod, but it seems to always crash on me when I do 32M.

 

[ghost recon88]

Did it pass Prime95 blend? If its failing SuperPI Mod, I would say your memory voltage isn't right, or your NB needs more voltage.

 

[zerogear]

Its not failing SuperPi Mod, the program itself is just crashing for whatever reason (I attribute it to x64 Vista, since running it on x86 never had it crash). It crashes even when everything is on stock. Prime95 blend passed 8 hour run.

 

[Shmee]

if it does 400 passes of intel burn test, I'd say thats awesome. you should be good to go from what I hear, though I am not an expert. I got my G0 Q6600 to 3.2, I wish it was as awesome as some q9550's. What stepping is it? Also, what cooling do you have?

 

[cmdrdredd]

what voltages are you using at 3.8Ghz?

 

[zerogear]

Originally posted by: Shmee
if it does 400 passes of intel burn test, I'd say thats awesome. you should be good to go from what I hear, though I am not an expert. I got my G0 Q6600 to 3.2, I wish it was as awesome as some q9550's. What stepping is it? Also, what cooling do you have?

Q9550 E0, using Noctua NH-U12P on a fan controller. I usually have it on 500~rpm when its doing desktop work, and I set it on higher, goes up to about 1200rpm for games/encoding/rendering.

Temperature is about 30/29/31/30s when running fan on idle/500rpm, if while doing IBT w/ 1200rpm max is about 50-55c.

Originally posted by: cmdrdredd
what voltages are you using at 3.8Ghz?

BIOS voltage is 1.3v, CPU-Z shows 1.256v.

 

[cmdrdredd]

Originally posted by: zerogear

Originally posted by: Shmee
if it does 400 passes of intel burn test, I'd say thats awesome. you should be good to go from what I hear, though I am not an expert. I got my G0 Q6600 to 3.2, I wish it was as awesome as some q9550's. What stepping is it? Also, what cooling do you have?

Q9550 E0, using Noctua NH-U12P on a fan controller. I usually have it on 500~rpm when its doing desktop work, and I set it on higher, goes up to about 1200rpm for games/encoding/rendering.

Temperature is about 30/29/31/30s when running fan on idle/500rpm, if while doing IBT w/ 1200rpm max is about 50-55c.

Originally posted by: cmdrdredd
what voltages are you using at 3.8Ghz?

BIOS voltage is 1.3v, CPU-Z shows 1.256v.

That seems pretty good. I'd leave it personally.

 

[Shmee]

or you could try going higher 😀

 

[cmdrdredd]

You could try, but how much voltage can the 45nm Quads take?

I can get my C1 Q9550 to 3.8Ghz but it needs over 1.3v at load to be stable. I'm not willing to keep the voltage that high.

 

[zerogear]

Specs say 1.3625, many people go up to 1.4. Though I don't really see the need to go higher as the general performance of 3.8 -> 4.0-4.1 isn't that big to warrant the possibility of damaging the processor 🙂

 

[Big Lar]

I'd run Memtest HCI 4 instances just to be sure. Nice Clock and nice chip 🙂

My 9400 needs 1.288v idle for my clock.

Larry

 

[Slappy00]

i got 3.4 with on 1.20v

I tried 1.29v but that was getting me temps of 72C load intelliburn low to mid 60s is best for me.

the q9550s overclock like mofos

 

[n7]

IBT for CPU/RAM
P95 Blend for CPU/RAM/FSB (though not good for 4+ GB RAM)
P95 Large for FSB
HCI Memtest for RAM/NB (run as many instances as you have cores combined to use all RAM)


Super Pi Mod is broken in Vista x64 & useless for stability testing anyway; don't waste time with it.

 

[GundamF91]

Yeah, it's your SuperPi running in Vista x64. You're fine with the Intel Burn Test. I get my 9450 up to 3.8, but it's way too hot running IBT. So I've now settled with 1.2 at 3.4Ghz. My GPU is the bottle neck.