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P5W-DH stability problems

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8800GTX

Registered
Joined
Dec 31, 2006
I have a

Asus P5W-DH bios 1707
E6600 / Scythe Infinity cooler
2x 1 GB Team Xtreem DDR2 800MHz PC2-6400 800MHz 4-4-4-12
8800 GTX
ARKANGEL 850 W
2 sata wd
all on a thermaltake tower

400*9 1.425V
DDR2-800 4-4-4-12 VDimm 2.00V
FSB Term V 1.5V
MCH V 1.65V
ICH V 1.2V


But it isn't stable I can't run orthos for more than 10 s
if I play after an hour or so the system crashes
does anyone see a problem in this config?
 
the ram needs 2.2v and the vcore droops so you need to up it up as well.

have you tested ram with memtest? what option do you run orthos with?

is mch 1.65 the highest it can go?
 
Yes I've tried memtest it runs
orthos I only set priority to 10 and start it

mch highest is 1.85

is the RAM ok? the timmings I mean?

I put the vcore up to 1.4375
 
youll probably have to bump your vcore up to get stable.ive got to run my 6600 @1.525(droop is .02 so actual is 1.5)to stay orthos/prime stable at 400x9.
your timings are good.once you get your cpu stable you should be able to drop the timings some with default volts 2.2.
 
the timings are fine but you do need at least 2.2v to go with it.

crank mch to the highest it can go.

not sure you want to set priority to 10 though. it would stress windows itself :p but whatever, there are different opinions on the subject.

to test cpu, use small fft, to test ram, use large fft.

vcore will droop under load so be prepared to go even higher with it.

here's a nice thread at xs for reference:

http://www.xtremesystems.org/forums/showthread.php?t=110193
 
done all those changes, thanks
just running memtest and going to do orthos after

what should be average temp for the cpu?
my gtx is always at 68 and goes up to 90 is it suppose to?
on which priority setting should I run orthos?

thanks, just one thing in that thread you send me the link they say to put mch at 1.55
 
gtx i'm not sure - it's probably good as is.

as for c2d temps - it's a bit of a gray area. it's too involved to go into it right now but i wouldn't worry till it hits mid seventies. (do not freak out, is my advice :p )

priority for orthos - just look at what ppl in that thread are using, there should be some screenies. i really don't want to mislead you on this but i haven't seen anyone doing 10 for some reason.

if they say mch at 1.55 than try that. it could be a peculiarity of your board for all we know. if that fails, try the highest.
 
cpu tem is at 50 now

and orthos runs for 6 s on 5 priority and fatal error rounding was 0.5, expected less than 0.4
 
400fsb *9 = 3.6Ghz @ 1.43v?

Looks to me like too high a clock for that low of vcore. I'd try backing of to 367fsb and slowly work your way up.
 
this is what is new

Asus P5W-DH bios 1707
Scythe Infinity cooler
2x 1 GB Team Xtreem DDR2 800MHz PC2-6400 800MHz 4-4-4-12 2.0V

Performance Mode Turbo
PCI Express Frequency 101
PCI Clock Sync Mode 33.33Mhz
FSB Term V 1.5V
MCH V 1.65V
ICH V 1.2V
i have everything disabled in advanced cpu except microcode updation
disabled spd
4-4-4-12-4
DRAM ECC Mode, hyper path 3, dram throttling threshold, memory remap feature Disabled

PEG buffer Lenght, link latency, PEG Root Control, PEG Link Mode and slot power set to auto

8800 GTX
ARKANGEL 850 W
2 sata wd
all on a thermaltake tai-chi

E6600@ 2.6(400*9) 1.45 in bios, 1.125v acording to cpuz which sounds fake since temps are 50º idle and were up to 78º when orthos stoped (in only 1m29s) in StressCPU - stress CPU with Gromacs core because with Small FFTs - stress CPU it only lasts 4 s as you can see

Type: Small FFTs - stress CPU Min: 8 Max: 8 InPlace: Yes Mem: 8 Time: 15
CPU: 3603MHz FSB: 400MHz [400MHz x 9.0 est.]
CPU: 3603MHz FSB: 400MHz [400MHz x 9.0 est.]
31-12-2006 20:27
Launching 2 threads...
Using CPU #0
Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 800000 Lucas-Lehmer iterations of M172031 using 8K FFT length.
FATAL ERROR: Rounding was 0.484375, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 0 minutes 4 seconds - 1 errors, 0 warnings.
Execution halted.

Type: StressCPU - stress CPU with Gromacs core
CPU: 3603MHz FSB: 400MHz [400MHz x 9.0 est.]
CPU: 3603MHz FSB: 400MHz [400MHz x 9.0 est.]
Completed 58000 iterations without errors (710.50 GFLOP)
ERROR in iteration 58749: Vcoul_ref=2.574246, Vcoul=-1.#IND00
StressCPU ran 1 minutes 29 seconds.
Execution halted.
 
The symptoms are a classic sign of the processor being unstable.

Windows don't get corrupted, you can hop on the internet, defrag and play 2D games without a crash or error, but Prime95 fails pronto and with 3D games, Windows crashes after 15 minutes. That's the usual symptom of not enough Vcore.

With RAM, the symptoms often are more obvious. Windows is more likely to crash when doing the smallest things.
 
Not always true RJARR



8800GTX

Do this.

Change RAM from 4.4.4.12.4 to 5.5.5.15.5.

Run the Ortho and see if you still get errors.

Come back here and let me know.
 
UglyChild said:
Not always true RJARR



8800GTX

Do this.

Change RAM from 4.4.4.12.4 to 5.5.5.15.5.

Run the Ortho and see if you still get errors.

Come back here and let me know.

It probably is the processor, because it failed with small FFTs.
 
here is the result attached it lasted 8 s...

any ideas, and why is the processor at 50º idle???
 

Attachments

  • orthos.JPG
    orthos.JPG
    45.2 KB · Views: 416
Like others are saying. It looks like the CPU. 400fsb may just be too much for that chip unless you want to go nuts on vcore. Prob not what you want to hear.....but kind of looks that way. I've had over a half dozen C2D's now, and not a single one I can call "stable" at 3.6ghz. Either back off the fsb or turn down the cpu multi.
 
re-sit the cooler and make sure the fan is mounted the right way. also, make sure thermal compound applied correctly.

ppl, do you know if there's a way to better mount an Infinity? i thought i've read something somewhere...
 
ok so I put

CPU Freq.....365
Dram...........DDR-758
Perf Mode....turbo
PCIe...........101
PCI.............33.33
Mem V.........2.1V
Cpu V..........1.4V cpuz says its at 1.304V weird
because in the previous settings I had it up to 1.45 and cpuz said it was at 1.125
FSB Term......Auto
MCH.............1.55V
ICH...............Auto


it crashed just after running windows

now I'm with

ok so I put

CPU Freq.....355
Dram...........DDR-710
Perf Mode....turbo
PCIe...........101
PCI.............33.33
Mem V.........2.1V
Cpu V..........1.375V cpuz says its at 1.304V weird
because in the previous settings I had it up to 1.45 and cpuz said it was at 1.125
FSB Term......Auto
MCH.............1.55V
ICH...............Auto


41º idle 68º small ffts stress cpu orthos
does the turbo really change much or should I try higher fsb and voltages or start trying fsb termination voltage and mch?

I notice if i raise the vcore in the bios like up to 1.45
cpuz displays 1.125, which now it set to 1.375 and cpuz displays 1.304
 
cpuz does not read voltages with c2d's. if you want voltage readings, install asus software.

have you re-sited the sink?
 
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