My overclock passes bios but...

rdukeman

Member
May 20, 2005
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Hello

I am over clocking my athlon mobile 1.6 to 2.2ghz. I have a nfs-v2 board. I am using 166mhz x 13.5 to push it to 2.25 ghz. I am a basic over clocker so I am not familiar with the advanced features of bios.

What happens is my machine boots right back up after restarting, then I get a black screen with a flashing _ instead of the Windows boot screen.

I thought it might be that there is not enough power, and I am planning to push up the voltage .1 or .2 more. I thought I would ask here first to see if there is something simple I am over looking.

Thanks
 

soydios

Platinum Member
Mar 12, 2006
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Back off the overclock until you can boot into Windows. Then, run Orthos and back off your overclock until it doesn't crash during a really long run (24 hours if you want to be really sure). At that point, you'll have a rock solid overclock.
 

Pwntcomputer

Senior member
Oct 6, 2005
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Did you happen to enable PCI lock in the bios? You want to make sure you don't corrupt your hard drive. Your system is definitely not stable if it is not booting windows. When I was trying to boot @ 2.35ghz, I gave it some more juice and that helped. I was still unable to run Superpi stable though.

 

myocardia

Diamond Member
Jun 21, 2003
9,291
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You're likely going to need at least 1.65v of vcore, if not 1.70v, to reach 2.2+ Ghz. My 2.0 Ghz XP-M 2600 wouldn't do 2.2 Ghz on it's stock voltage, either, and it would do better than 2.5 Ghz easily.;)
 

rdukeman

Member
May 20, 2005
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Is it safe to push it to 1.65v~1.7v on stock parts? I have some thermal paste(?) under my heatsink but other than that I didn't do anything else.
 

myocardia

Diamond Member
Jun 21, 2003
9,291
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Oh yeah, 1.65v is the stock vcore for all XP's, except the XP-M's. And the XP-M's can handle the same amount of vcore that all other XP's can, they just don't require as much to run at their stock speeds, is all.
 

lopri

Elite Member
Jul 27, 2002
13,314
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Can you enter Windows if you back the clock speed down a little bit? Just to make sure. There are other things that could cause troubles for successful boot-up. (Safe-mode can be used to determine whether drivers are at fault)