Specifications

4. Make sure your card is fully seated in the AGP slot.
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Q. How can I enable the overclocking utility in NVIDIA's drivers?
Q. How can I enable the VSYNC changing area of the NVIDIA control panel?
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For Windows 9x/ME drivers, use the coolbits.reg registry file to enable them - available here:
http://www.geforcefaq.com/files/coolbits.reg
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For Windows 2000 driver versions 5.13 and later, use the coolbitsw2k.reg registry file to enable them -
available here:
http://www.geforcefaq.com/files/coolbitsw2k.reg
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Q. How can I overclock in Linux?
Use NVClock - you can download a copy here:
http://www.evil3d.net/products/nvclock/
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Q. How far can I overclock my card?
Different cards can be overclocked by different amounts, depending on how good the card's fan is, how good
the case ventilation is, whether there are RAM heatsinks attached and so on. In addition some cards simply
can't overclock as far as other cards because they're all slightly different due to the manufacturing process. I
can't tell you how far your card will overclock - just follow these guidelines:
1. Add an extra 5mhz or so to the current clock speed.
2. Use a program like 3DMark to 'stress test' the card by running the tests 3 or 4 times.
3. If you see visual corruption or the system crashes during the test, you've overclocked too far. Take
yourself back down 5mhz - this is how far you can overclock.
4. If the test ran correctly with no problems, go back to step 1.
If you overclock bit by bit, as described above, it is very unlikely that you will damage your card. If after this
process you find that your card is crashing more often, take it down another 5mhz or so until it stops crashing.
Don't forget that you may be able to increase the core speed more than the memory, or the memory speed more
than the core. In general increasing the memory speed will have a greater effect on speed than increasing the
core speed.
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Q. Coolbits doesn't work or I can only adjust my memory speed. How can I fix it?
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Coolbits is disabled in various driver sets. You can fix this by copying the nvcpl.dll and nvqtwk.dll files
from the nearest version of the drivers that does not disable Coolbits into your Windows\System folder -
for example, to fix 3.76, you can copy the files from the 3.77 drivers.
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Apart from this, Coolbits works in all Windows 9x/ME driver sets. For the Windows 2000 drivers you
need versions 5.13 and above for it to work, and a different registry file. See the '
How can I enable the
overclocking utility in NVIDIA's drivers?' question for more information.
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Note that if drivers are WHQL certified (generally you can see this in the file name) it is unlikely that
Coolbits will work as Microsoft refuse to pass drivers that allow you to disable VSYNC or overclocking.
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GeForce FAQ