SiSoft Bus speeds

[ski]

Anyone know why SiSoft Sandra 2001 Pro shows my PCI Bus speed to be 46 MHz on an Abit KT7A-Raid board when in the Bios I set it to 136/34 MHz? It also says my AGP is 92 MHz. I thought the new Via chipset maintained the 33 and 66 MHz settings for the PCI and AGP.

 

[mitaiwan82]

I don't think the current version of Sandra has the KT133A chipset setup right yet...it tells me the same thing too when i set my FSB at 133. Future revisions should have it implemented...

 

[ski]

Thanks for the info.

 

[RobsTV]

Yes, newer version of Sandra shows correct info.
BUT, the newer "A" boards do NOT maintain 33/66 settings.
What they do is change settings of 133MHz and above to 1/4 instead of 1/3.
Older KT7 running 133FSB had PCI clock at 44MHz, and AGP at 88Mhz. (1/3).
New "A" board set at 133 will use 1/4, and PCI/AGP will be 33/66 MHz.

Your board is using +133, so 1/4, and as your Bios shows you, PCI clock is overclocked to 34MHz, while AGP would be at 68MHz.

Another thing you should know about using +133 is you lose the option of running memory at FSB + PCI clock. Your memory is stuck at 136 with a 136FSB. With a 112Mhz FSB, memory can run at 112+37, or 149MHz. Big performance boost.

 

[CTho9305]

there is hardly any hardware out there that can handle 46 pci - rest assured sandra is wrong.

 

[RobsTV]

The newer version that corrects this problem is 711.
All is accurate with version 711.
Actually it's been out for more than 2 months now.