Here's the linkRadeon 9700 Has 8X Issue AND ATI FIX
Spent over an hour with ATI Customer Service Canada and more important, the Engineering Dept. The subject: Our testing shows the Radeon 9700 will NOT work at all on the Asus P4S8X (SiS648), Gigabyte 7VAXP (KT400/8235), and VIA P4PB (P4X400/8235) which are the only 8x AGP boards on the market. Customer Service was not completely aware of this, but Engineering is.
According to ATI, they are now receiving and testing these 8X AGP boards. They are ALSO finding the 9700 does not work at all or works intermittently at best. Engineering indicated most of the boards already shipped have this problem.
Solution: A new BIOS and some board revisions are now available that fix this problem. Call ATI Customer Service for help with the issue. At present, they will ship a replacement board that WILL work in SiS and VIA 8X, but they are also considering a BIOS flash solution for problem boards.
Customer Service and Engineering deserve a 10-1/2 for their wonderful handling of this issue. They are very concerned that it be corrected quickly. They also shared that most of their 8X validation testing was done with Intel's unreleased 8X chipset and that they are just now receiving shipping versions of the SiS and VIA 8X chipsets.
Originally posted by: Rick67
What other chipset do you know of that has more features then the SiS648?
The SiS R658
Can't wait for an actual Motherboard to come out utilizing it... Hopefully soon.
Has anyone (who is having problems) tried disabling 8x in BIOS, loading the OS, installing the ATI driver and AGP/GART driver (if applicable), then restarting and enabling 8x, instead of starting off in 8x right away?The card also works just fine in 4X. I started in 4X to see if it worked...and it did. Then I switched to 8X and everything is still running great.
Originally posted by: LethalDose
Well I have bad news for some Abit SR7-8X users. They don't work well together. Seems they like to freeze, reboot and generally cause havok with my machine.
Originally posted by: Lonyo
Does 8x give any performance advantage over 4x? I know it's meant to give extra bandwdth, but does that actually lead to any increase in performance or is it totally wasted and therefore unneccessary since the extra bandwidth might not be used?
Originally posted by: lobadobadingdong
Most likely a timing issue with the AGP bus, does the card work if the mobo bios is forced to 4x mode?