Vcore setting on auto ok?

JonnyStarks

Golden Member
Nov 28, 2003
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I am very slowly dipping my feet into the shallow end of the overclocking pool and just have a quick question.

I have a P4 2.8C with and ASUS P4P800-e DLX motherboard and so far I've been able to hit 3.1GHz by just increasing the FSB, and it appears to be pretty stable.

One thing that concerns me is that in the BIOS the Vcore setting is on [Auto] and I was afraid that if I just kept upping the FSB that the bios would increase the Vcore for me automatically to adjust for higher speeds, and it would run the risk of frying something.

I have an asus monitor running in Windows and it looks like its sitting at 1.6V, but if I crank up the FSB too high will it increase it for me or just refuse to boot like so many overclocking guides would suggest?
 

MrK6

Diamond Member
Aug 9, 2004
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Try it and see. Your best bet is to test for stability though. Download Prime95 and torture test for at least a half hour before going up another 5MHz. When you start getting errors in thath alf hour, you either need to bump up voltages, or, if your temps are too high, back down on your overclock. When you find a setting oyu like and it can run prime95 for at least 6 hours with no errors, and run all your games applications etc with no hiccups, ya found a good o/c :). Personally though, I'd set the vcore manually, so you know what you're at. It's good that you're monitoring your temps, but make sure you stress test the hell out of your system to make sure it's stable.
 

yourdeardaniel

Golden Member
Mar 20, 2004
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i don't think it automatically increases vcore.

auto is like the default which is 1.525v, i'm running at 3.5ghz and still have it set on auto for vcore (1.525v)
 

Fern

Elite Member
Sep 30, 2003
26,907
174
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One thing that concerns me is that in the BIOS the Vcore setting is on [Auto] and I was afraid that if I just kept upping the FSB that the bios would increase the Vcore for me automatically to adjust for higher speeds, and it would run the risk of frying something.

No, vcore won't automatically go up.

I have an asus monitor running in Windows and it looks like its sitting at 1.6V, but if I crank up the FSB too high will it increase it for me or just refuse to boot like so many overclock

No, same as above, vcore won't automatically go up.

If you go up in reasonable increments, it'll likely boot but be unstable if too high (won't pass Prime95). If you go up too much, then it won't post and you'll have to clear the CMOS to get it to boot/post.