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C2d e6600 + p5b-e

J

jfisher007

Junior Member
Hi,

First of all this is an awesome forum!

I am a beginner and I overclocked my system to 3.0 Ghz with the following settings in bios:

FSB😀RAM ratio is 1:1

FSB: 333 MHZ
CPU VCORE VOLTAGE: [1.2750 V]
FSB TERMINATION VOLTAGE: [auto]
MEMORY VOLTAGE: [auto]

My system is as follows:

Intel core 2 duo e6600
p5b-e motherboard
2 x 1 GB DDR2-667 PC2-5300 (5-5-5-15 1.8V)
1 x 2 GB DDR2-667 PC2-5300 (5-5-5-15 1.8V)
geforce 8800 GTS 320MB

So, my system passes POST, boots fine into Windows Vista, and runs stable, no BSOD's or crashes. My cpu is water cooled and my idle temps are around 32C and under load are 43-45C. I have run PRIME 95 on SMALL FFT's and get an error on one core 0 and core 1 keeps going. I ran a BLEND test as well and same problem. The error is below:

FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file
Torture Test ran 1 hours, 8 min - 1 errors, 0 warnings

Did anyone come across this problem and what would you recommend I do? Increase the voltage another notch or lower my FSB to 330 MHZ ? Any comments, suggestions, pointers, tips, etc are greatly appreciated.

Thanks for any advice.


 
Wow that is the quickest response ever!!! Thank you. So should I start off at 1.325 V or incrementally increase the voltage from 1.2750V?

Thanks again!!
 
I would try 1.35v first, try to find a stable point baseline first. Then if it's stable, then maybe work backwards slightly decreasing the voltage each time until I get to the minimum stable voltage to be stable at 3GHz (or progressively go higher clockspeed if you want).
 
Originally posted by: jfisher007
Would setting the Memory voltage to 1.8 V instead of auto help stabilizing the overclock?
Click to expand...

Only if that's your RAM's rated voltage and you're running at stock frequency and timings or below. (Which you seem to be doing, so it can't hurt. If you exceed stock settings, you may need to raise this or leave it auto.)
 
I have increased the Vcore voltage one notch and so far no errors when running prime 95 under load. Everything is stable, no BSOD's or crashes but I did come across another weird phenomenon. Once I restart my computer and it goes through all the shutting down windows (vista) process and then as the screen turns black the computer powers off for about 15 seconds like after saving and exiting BIOS after an overclock then powers up and boots fine into windows. What could this be? Never came across this. Thanks for any help!
 
That's a quirk of Asus motherboards; I remember having the same issue with a P5B Deluxe after overclocking. However, it got fixed with a newer bios so you may want to check Asus's website to see if they have a newer bios for the P5B-E.
 
I did a flash of my bios to the latest 1803 BETA version. Maybe because it is a beta version that is causing the weird restarts?
 
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