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Any way to lock the PCI and AGP Busses outside of BIOS?

post #1 of 8
Thread Starter 
In order to overclock my CPU I need to lock the PCI and AGP Busses but there isn't such an option in my BIOS. I would try a modified BIOS which I found but for some reason my floppy drive doesn't work anymore. The system detects it but its green light never seems to turn on. Anyway I just want to know if there is some utility that allows changing the PCI/AGP frequencies or if there is some way to unlock those options in the BIOS. I have an ASRock P4V88 motherboard with the newest BIOS (1.80).
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Pentium IV Prescott 2.4A ASRock P4V88 HIS Radeon X1650XT IceQ Turbo Edition 256MB GDDR3 1GB DDR PC2700 
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post #2 of 8
If it isn't possible in the bios I am highly doubting that it is possible with software. Sorry for the news but take hope in the fact that I could be wrong I suppose.
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post #3 of 8
I agree with the above.

Just get a new floppy drive
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Oh The Glorrryyy
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post #4 of 8
Thread Starter 
Aw. I hope the modified BIOS will have some PCI Bus options.
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CPUMotherboardGraphicsRAM
Pentium IV Prescott 2.4A ASRock P4V88 HIS Radeon X1650XT IceQ Turbo Edition 256MB GDDR3 1GB DDR PC2700 
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Samsung 250GB 7200RPM 8MB cache Windows XP Professional Service Pack 2 400W 
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My System
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Pentium IV Prescott 2.4A ASRock P4V88 HIS Radeon X1650XT IceQ Turbo Edition 256MB GDDR3 1GB DDR PC2700 
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post #5 of 8
Quote:
Originally Posted by Maxx2007 View Post
Aw. I hope the modified BIOS will have some PCI Bus options.
Most VIA chipsets does not support locking the PCI bus, so a BIOS update will not help.
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#well
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post #6 of 8
Quote:
Originally Posted by gonX View Post
Most VIA chipsets does not support locking the PCI bus, so a BIOS update will not help.
more like ALL....... (from hat I've seen)...

You might not want to overclock as the rising PCI bus frequency will cause havoc on harddrives.....
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post #7 of 8
Certain VIA chipsets support PCI/AGP locks, but not many (880 pro, 890 chipsets do...but not many others)

One way around the PCI/AGP lock is to keep the ram speed at or near it's "stock" speed. Stock speed being what the computer sets it to, not necessarily the rated ram speed.

Example: if your system's stock memory speed is 200 FSB, keep your ram at or near 200 - even if you raise your processor FSB up higher.

If you are remotely worried about attempting this, you can test it using CPU-z. Go into bios, set a ram divider (if available) and increase your FSB by a small amount. Boot up and open CPU-z and check the main tab as well as the memory tab - if the two FSB's are different then VIOLA...you should be able to overclock your clockspeed if you can keep the ram speed down.
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post #8 of 8
Thread Starter 
CPU-Z says my RAM is running at only 133MHz! What gives? Is this because the FSB is also at 133? I have two sticks of 256MB PC2700 and one stick of 512MB PC3200. They should run at 166MHz...

Looks like I need a RAM divider? I don't think I have one in the BIOS. Can't I just raise my FSB to 166MHz so the RAM does the same?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Pentium IV Prescott 2.4A ASRock P4V88 HIS Radeon X1650XT IceQ Turbo Edition 256MB GDDR3 1GB DDR PC2700 
Hard DriveOSPower
Samsung 250GB 7200RPM 8MB cache Windows XP Professional Service Pack 2 400W 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Pentium IV Prescott 2.4A ASRock P4V88 HIS Radeon X1650XT IceQ Turbo Edition 256MB GDDR3 1GB DDR PC2700 
Hard DriveOSPower
Samsung 250GB 7200RPM 8MB cache Windows XP Professional Service Pack 2 400W 
  hide details  
Reply
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