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Help Getting P4 650 Stable - Page 4

post #31 of 48
Quote:
Originally Posted by Ringfinger
I am only using the BIOS to OC. Vcore is at 1.400, DRAM is at 1.95v 4-4-4-10
It's hard to give you advice when you say that you have tested for stability with all the tools you mentioned above and then say that you get reboots and freezes.

Either one or the other. I have never seen a system pass Memtest86 v3.2, SuperPi and Prime93 (dual instances) and then go on to reboot/freeze.

R
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post #32 of 48
Thread Starter 
Well I guess I'll just shut my mouth and come back after some real testing so I can give results...
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post #33 of 48
If you are finding random crashes and reboots every few hours then yes, you have work to do with testing your system. Prime95 with two instances of Large FFT's for 8 - 12 hours is considered stable. Memtest86 v3.2 tested from DOS boot for two passes is considered stable for the dram.

This is just my opinion.

By the way, you have picked fine parts.

R
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post #34 of 48
Thread Starter 
Thank Ropey... def need a new Vid card though this measly 128m x300 just aint cutting it. But hey, it was a freeby to get the machine up and running so who cares
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post #35 of 48
Ring,
try uping the vdimm to 2.1 and retest for stability. As ropey says....run dual prime overnight and then memtest for a couple hrs....THAT is stability. That will allow you to run games 24/7 with no crashes.
Ropey......
The only reason I can think the errors are not present at 3:5 when they are at 1:1 is that the mb and ram are both set to run the ram faster than the fsb. It is how ddr2 ram runs. There is a noticable difference in performance over running 1:1 on ddr2 systems.
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post #36 of 48
Quote:
Originally Posted by busa
There is a noticable difference in performance over running 1:1 on ddr2 systems.
Do you have any research (URL's) on this pheonomina as I would really like to understand how a 3:5 data stream will produce higher transfer performance than 1:1 (excluding ECC Data Validation)?

I can find nothing on this phenomina through my own reasearch.

Thanks,

R
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post #37 of 48
Thread Starter 
Will do Busa, thanks. As far as the research, I have many Sandra bechies proving the fact... but nothing to back up why it's possible..
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My System
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400W Antec Antec Performance TX640B 
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post #38 of 48
Quote:
Originally Posted by Ropey
Do you have any research (URL's) on this pheonomina as I would really like to understand how a 3:5 data stream will produce higher transfer performance than 1:1 (excluding ECC Data Validation)?

I can find nothing on this phenomina through my own reasearch.

Thanks,

R
Its higher frequency of course is gonna be faster, I have researched it and posted it in this thread:
http://www.overclock.net/intel-memor...ps-tested.html

When I set timings to 1:1 my computer ran applications like a dog.
post #39 of 48
Thread Starter 
So I'm not crazy... wohooo!

On a side note - I've been stable now for 14hrs @ load with my current settings. 245*17 1.4vcore 3:5 4-4-4-10 1.95v
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P4 650 ASUS P5WD2-P XP Pro Sp2 Samsung 19" LCD 
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My System
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CPUMotherboardOSMonitor
P4 650 ASUS P5WD2-P XP Pro Sp2 Samsung 19" LCD 
PowerCase
400W Antec Antec Performance TX640B 
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post #40 of 48
Quote:
Originally Posted by Ropey
Do you have any research (URL's) on this pheonomina as I would really like to understand how a 3:5 data stream will produce higher transfer performance than 1:1 (excluding ECC Data Validation)?

I can find nothing on this phenomina through my own reasearch.

Thanks,

R
I don't have it saved any more, but I did a bench test a while back and ran my mem from 1:1 up to 1:2 (400mhz to 800mhz) and got about a 10,000 point difference in running AM3 from the lowest to highest settings.
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Busa's Opti
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