KT7a Mobo....please help (simple)

[Michael_Myers]

Ok, I looked into the BIOS and my duron shows up as 800 mhz....which is correct but I am curious about the setting:

"Cpu FSB/PCI" and it says 100/33.......

I unlocked the mulitplier (pencil tricked it) and now have the multiplier at 7.5 and the FSB at 133.

So the "Cpu FSB/PCI" Now looks like this: 133/33

Could anyone exlpain what the RIGHT SIDE 33 is?
As I understand it, the 133 raises the Entire system speed....but I am a little vague on the right side ##.

PS....I read the Manual, and am still a bit confused about it.....

One last question.....should I try to raise the right side # as high as possible also??

System specs.....Duron 800 @ 1000....7.5x100
Micron PC-133 cas 2 ram (1 stick =256mb)
coolermaster cooler (stock) 37c right now, Mobo monitor

 

[WillysNut]

The right side identifier (33) is the speed of the PCI Bus which determines the transfer rate of several hardware related devices. You should try to keep this number low (as close to 33 as possible) not high!

With your KT7A board you have an option just underneath the 133/33 setting that is called "CPU FSB Plus". You can use that to raise the FSB (Front Side Bus...left number) in 1MHz increments. So...you can keep your PCI bus at 33MHz and run your FSB at 133...134...135..assuming your chip is capable and well cooled.

Hope this helps!!

 

[Michael_Myers]

Oooooops.....sorry......that last part should read
Duron 800 @1000mhz......7.5 X 133/33

Sorry......been drinkin' a few july 4th beers......early..

 

[AMDGuy]

WillysNut (Jul 03, 2001 06:15 p.m.):
The right side identifier (33) is the speed of the PCI Bus which determines the transfer rate of several hardware related devices. You should try to keep this number low (as close to 33 as possible) not high!

With your KT7A board you have an option just underneath the 133/33 setting that is called "CPU FSB Plus". You can use that to raise the FSB (Front Side Bus...left number) in 1MHz increments. So...you can keep your PCI bus at 33MHz and run your FSB at 133...134...135..assuming your chip is capable and well cooled.

Hope this helps!!

I actually ran a test tonight, and whatever your total FSB number ends up being (i.e. 133 + 13 = 146FSB) divide this by 4 if you set the FSB to the 133/33 setting. This will tell you what the actual PCI bus is running at. In the example I gave it's 37Mhz.

Like most people I assumed using the "PLUS FSB" feature of the BIOS would keep the PCI bus at 33mhz but this is not the case.

If you use the FSB 100/33 setting then the PCI divisor is 3.

Hope this helps.

 

[JEFF]

the amd guy is right.adding to the plus does add to the pci clock.it also is incorrect as adding +1 may add +3 or vice versa.it may post at +13 but not at +11 or +9.dont assume the #'s are correct,sandra will show correct speed.