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Problem overclocking (prime 95 error)

V

vertigofm

Member
Here is my rig:

Lian Li 7077
NF4 Ultra-D
Opteron 170 (Gonna OC)
Mushkin XP Redline PC 4000 3-2-3-8, (2X 1 gig sticks)
PC power and cooling Turbo-Cool 510 ASL
x1900xtx

I keep getting that message when running prime 95. I've pumped up my CPU voltage, my Ram voltage, and set the timing loose to 3-4-4-8 It's weird because I can play games. What kind of prblem would this indicate. Oh yeah, this happens when my Opteron 170 is a 2500 mhz (250X10)

Thanks
 
This generally means your overclock isnt stable. What kind of voltage are you running with you CPU at 250x10?
 
You probably need more volts to do that. My X2 3800+ required 1.525v to do 2.5 GHz. The Opterons are supposed to use less voltage, so you might try 1.45-1.5v and see if that helps.
 
Hmmm this is weird.... I've been changing something called CPU vid startrup value in my BIOS, but it doesn't seem to affect the Voltage because in my motherboard monitor it isnt showing a change
 
STOP RAISING YOUR VOLTAGE. geez are you trying to fry it? 1.45 is the max I would go and defiantly DO NOT go beyond 1.5.

Use a 1:2 ram divider to run your ram 125mhz and see what happens. Drop the voltages to 1.45.

You defiantely should have worked your way up finding stable numbers for us to go with but we will work from here I guess.
 
What voltage are you running your memory at?

The mushkin redline should be able to hold 250, but will need voltage.

Could be that you just haven't got a lucky cpu and it?s gonna max out before 2500MHz...
Have you tried running at stock and slowly increasing in 5 MHz increments and running prime to test after each run?
 
Originally posted by: robertk2012
STOP RAISING YOUR VOLTAGE. geez are you trying to fry it? 1.45 is the max I would go and defiantly DO NOT go beyond 1.5.

Use a 1:2 ram divider to run your ram 125mhz and see what happens. Drop the voltages to 1.45.

You defiantely should have worked your way up finding stable numbers for us to go with but we will work from here I guess.
Click to expand...


ok I'll try that but how could I have fried my CPU- the temps are so low
 
Ok I set everything back to stock standards- Ram, Voltage, FSB- everything... I'm running prime 95 now and its stable... I just dont know why my system is so unstable at 2.5 for my rig and cooling
 
Originally posted by: vertigofm
Originally posted by: robertk2012
STOP RAISING YOUR VOLTAGE. geez are you trying to fry it? 1.45 is the max I would go and defiantly DO NOT go beyond 1.5.

Use a 1:2 ram divider to run your ram 125mhz and see what happens. Drop the voltages to 1.45.

You defiantely should have worked your way up finding stable numbers for us to go with but we will work from here I guess.
Click to expand...


ok I'll try that but how could I have fried my CPU- the temps are so low
Click to expand...

If your in freezer would you stick two paperclips into a 110 socket.
 
Listen carefully. put your settings back where they were except your voltage. Change it to 1.45. Use a memory divider on the ram and leave the timings at CAS 3 and tell me what happens. I think your memory is the cause.
 
Originally posted by: robertk2012
Listen carefully. put your settings back where they were except your voltage. Change it to 1.45. Use a memory divider on the ram and leave the timings at CAS 3 and tell me what happens. I think your memory is the cause.
Click to expand...


Ok I'm gonna go do that now, thanks
 
Ok I took the battery out of my mobo for 1 minute and it reset the BIOS, I'm back to a fresh start. I'm gonna look at that guide and find the CPU max, I'm gonna keep the cpu v at 1.45 and no more. I'll get back to you guys, thank you Robertk and everyone else
 
Wait, so is this right?

set CPU multi to 6 or 7, this will take CPU out of equation

Thats what I do first? I thought the first thing was to find out the CPU max?
 
thats right. Follow that guide. 😉 I was just going to skip some steps with you since you have already jumped the gun a bit. Keep us updated and let us know of any questions you have.
 
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