• Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!

agp/pci

Overclockers is supported by our readers. When you click a link to make a purchase, we may earn a commission. Learn More.

Zeus

Registered
Joined
Nov 16, 2001
Im sorry to put this topic in this forum.... I honestly didnt know where to put it!

Im trying to find a program which tells you your agp and pci speeds. Im hitting an upper limit of 128fsb and I think its probaly my agp and pci ports slowing me down. Hell they are at 42.6 and 85.3!

Does anyone know of a program which tells you this...... and say mem speeds etc? cheers

Ive heard the turbo mode on my motherboard can cap these speeds so I just wanna check.

The only other way I can alter the ratios is to use the jumpers, taking away the 1mhz steps and the ability to change the core voltage.
 
Try sandra from sisoft, the benchmarking program under mainboard information. wont tell you if it's too high but will tell you what it actualy is.
 
If you know what your FSB is, it's easy to find out your AGP/PCI speeds. Most boards have 1/3 and 1/4 divisors for the PCI bus, and AGP is simply double that speed.

128 Mhz FSB, 1/3 divisor:
PCI 42.7 Mhz
AGP 85.4 Mhz

128 Mhz FSB, 1/4 divisor:
PCI 32 Mhz
AGP 64 Mhz

You're probably still on a 1/3 divisor. Most boards I've seen don't switch on the 1/4 divisor until you reach 133 Mhz FSB. If your board supports 133 Mhz FSB CPU's, try upping the FSB to 133. It might activate a 1/4 divisor. With the 1/3 divisor, your PCI and AGP buses are severely overclocked. That's probably what's holding you back.
 
Unfortunatly my board doesnt support a 533 bus so it doesnt change the ratio.

I can set it to 1:4 pci:fsb with the jumpers, but I cant up the core voltage so that wont work for me :(

That sandra is a good program thanks for telling me about that!

I can get 125 from a the pc100 and 126 from the pc133 on a stable comp.
Its possible the pc100 will go further if I up the voltage again from 3.5v to 3.6v but the pc133 at 126 crashes the comp sometimes but like you said its probaly the agp and pci bus doing that.

I manged to work out my ratios are

fsb:mem:agp:pci
3:3:2:1

and I want 4:3:2:1 :) !

nevermind, cheers
 
Back