[b]Overclocking Problems! Need your genius advise![/b]

Techniques, tips, and advice for the performance PC enthusiast on overclocking.

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[b]Overclocking Problems! Need your genius advise![/b]

Postby Ben77 » Sat Jun 29, 2002 9:57 am

While Overclocking my fsb I can get to 113 with my system performance set to turbo before unstable(can't get to xp). When sys. performance is set to normal I get to 122fsb before my pc is a little unstable, and 125fsb when there's no picture/ monitor gets no signal. I feel I should be getting higher than fsb122. Should I up the core voltage or is this too risky? Please give me your input.


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Postby Aibohphobia » Sat Jun 29, 2002 10:59 pm

No, you should not up the core voltage unless you can deal with excess heat. do you think you could give more input on your BIOS settings, it could be a RAM issue, or you are at the max. of your CPU at that particular voltage level.
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Bios info you need

Postby Ben77 » Sun Jun 30, 2002 11:45 am

So you know, I have a lot of cooling and I monitor my temps. Do you feel I should increase vcore voltage? Also, should my cpu overclock more than it is, or is 120-122fsb the norm?

CPU:DRAM ratio= 3:4 Dram freq. is 160x2
CPU clock (FSB)= 120
Autodetect DIMM/PCI Clock=disabled
Spread Spectrum=disabled
CPU Vcore=default
DDR Vcore=default
AGP Voltage select =default

What should I do with the advanced Turn up settings?
CAS latency=2.5t
RAS active time=tt
RAS precharge time=3t
RAS to CAS delay =3t
ACT to ACT delay=3t
Write Recovery time= 2t
R/W turn around time =safe
Read Latency control=safe
Time constraint control=slow
GW Write Mask AGP Request =enabled
AGP Fast Write Capability =enabled
Refresh Cycle time =tras + trp +1t
DRAM Addr/cmd rate=auto

What about?
CPU L2 Cache ECC checking =enabled
Prefetch Caching =disabled
AGP Aperture size =128
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Postby len444 » Sun Jun 30, 2002 6:23 pm

AGP Aperture size =128


lower this to 64

[generally 2x memory or 64 max- newer cards w/ more memory can be set higher though- experiment w/ 1x, then higher?!?]
CAS latency=2.5t
RAS active time=tt
RAS precharge time=3t
RAS to CAS delay =3t
ACT to ACT delay=3t


set the cas same as memory, you can prob. set ras precharge to 2t, ras to cas delay to 2t- set sdram cycle time to 5t, set interleave to 4bank (or higher if setting is there?), not sure on act to act- i had some good links to bios tweaking, one bit the dust- :cry:

perhaps this site will have some leads to maxing performance through bios settings:
http://www.wimsbios.com/
this site on memory:
http://www.motherboards.org/articlesd/h ... 179_1.html

these links as well:
http://www.tomshardware.com/howto/01q3/ ... index.html
http://www6.tomshardware.com/search/sea ... ios+tweaks
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Postby Tolemac » Sun Jun 30, 2002 7:03 pm

Rolyat Retep wrote:No, you should not up the core voltage unless you can deal with excess heat.
Tell me your kidding, Peter. Of course he has to up the Vcore. It is the only way to get a stable system when overclocking. :roll:

Ben77, your CPU's native Vcore is 1.50 for the 1.80A GHz P4. Set it to 1.60v and set the FSB to 122MHz and see if the instability goes away. If it does, try a higher FSB. You don't say what heatsink you have on your system. It will have to be a good one to compensate for the extra heat you will get from raising the Vcore. Make sure you are using Arctic Silver III thermal paste as well.
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