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M

MTXR

[H]ard|Gawd
Joined
Nov 4, 2000
Messages
1,324
Well, it looks like my box is just not stable anymore at 3.2

It was running for 3 weeks straight at 3.2@100% and not stable anymore. Probably power problem, but i have tried to take as many drives off the main powersupply and i still get random lockups. So for now, i am not going to be messing with my RAM VOLTAGE until a later date to see if this fixes stability @3.2.

So now the computer is at 2 x Xeons @ 3.0

How much production have i lost from the degrade in speed?(Average)
 
Sorry to hear about the loss of Hz. But, on the other hand, its only a drop of 6.25% per CPU or 9.1% overall. So I'd expect it to turn in work units just a bit slower. Nothing major.


 
Try cleaning up the HSFs? Or replacing the thermal compound? A few degrees can make a world of difference.

 
Tagan 480W.

I run Watercooling, so no HSF.

:-/

I think i need one of those sparkle/fortron PSU with 36A on the 12V rail.

Thing is though, only my 9800 pro, mobo, cpu, and raptor are on the tagan 480 and i have an enermax 432 running everything else, and i am still not stable anymore at 3.2.
 
MTXR said:
Tagan 480W.

I run Watercooling, so no HSF.

:-/

I think i need one of those sparkle/fortron PSU with 36A on the 12V rail.

Thing is though, only my 9800 pro, mobo, cpu, and raptor are on the tagan 480 and i have an enermax 432 running everything else, and i am still not stable anymore at 3.2.
Click to expand...
thermal compound?

 
I am using AS5 on waterblocksm AS3 on NB, Cremique on VRM heatsink.

I doubt my temps are the reason for the lockup, i am at 41C on both cpus at 100% load.
 
MTXR said:
I am using AS5 on waterblocksm AS3 on NB, Cremique on VRM heatsink.

I doubt my temps are the reason for the lockup, i am at 41C on both cpus at 100% load.
Click to expand...
hmm...

at that speed does it pass memtest?

 
hmm... i never really tried memtest, because it passed 4 instances of prime95 for 24+hours.

ANd i am not running my ram out of spec.

it was at 16x200 now its 15x200 so i dunno why my ram would mess up. It never had mem errors before... Running kingston ECC ram here.

But it could be a small drop in mem voltage, but i don't have a meter to measure so i can't mess with that yet.
 
MTXR said:
hmm... i never really tried memtest, because it passed 4 instances of prime95 for 24+hours.

ANd i am not running my ram out of spec.

it was at 16x200 now its 15x200 so i dunno why my ram would mess up. It never had mem errors before... Running kingston ECC ram here.

But it could be a small drop in mem voltage, but i don't have a meter to measure so i can't mess with that yet.
Click to expand...
my computer passed prime95 fine; didn't pass memetest.
changed ram = stability++

 
unlocked downwards.

Mine is 16-12

I have Xeon Prestonia core D1 Stepping, 400FSB @ 800FSB


Thing is though, its rock solid at 3.0 and was stable at 3.2 so it leaves me to believe something might be failing.
 
MTXR said:
unlocked downwards.

Mine is 16-12

I have Xeon Prestonia core D1 Stepping, 400FSB @ 800FSB


Thing is though, its rock solid at 3.0 and was stable at 3.2 so it leaves me to believe something might be failing.
Click to expand...
Let's hope not... :(
 
Well, i just did a little more research and it looks like my ram wants 2.6V and PC-DL supplies only like 2.5V

So i have to do that crazy Vdimm mod. But i have no volt meter, so i won't be attempting it anytime soon.

So i guess 3.0 is hear to stay till i can find someone to borrow a volt meter. I think my undervolting of the ram at the higher speed is making it unstable.
 
MTXR said:
Well, i just did a little more research and it looks like my ram wants 2.6V and PC-DL supplies only like 2.5V

So i have to do that crazy Vdimm mod. But i have no volt meter, so i won't be attempting it anytime soon.

So i guess 3.0 is hear to stay till i can find someone to borrow a volt meter. I think my undervolting of the ram at the higher speed is making it unstable.
Click to expand...

Yeah, 2.6v is the JEDEC recommended voltage for PC3200. Can you at all run a memory divider on that?
 
MTXR said:
Well, i just did a little more research and it looks like my ram wants 2.6V and PC-DL supplies only like 2.5V

So i have to do that crazy Vdimm mod. But i have no volt meter, so i won't be attempting it anytime soon.

So i guess 3.0 is hear to stay till i can find someone to borrow a volt meter. I think my undervolting of the ram at the higher speed is making it unstable.
Click to expand...
you can probably get a fairly cheap volt meter at radioshack....

could you just loosen timings on the memory? that might do it.
 
My memory is as loose as you can get.

3-3-3-8

I am running ECC memory :-/

I'll take a look at radio shack. Pretty broke though.
 
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