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Radeon 9600Pro/XT agp speeds?

rogue1979

Diamond Member
Does anyone have any experience with running a 9600Pro/XT on an overclocked agp bus? I have a set up running a GF4 on a 77.6MHz fsb without problems.

I have also ran an 8500 with a similar agp bus speeds successfully. I know after owning three Radeon 9700 Pro's anything above 67MHz caused problems.

Would the 9600Pro be more tolerant like the 8500 or be picky like the 9700?
 
No idea. Overclocking your PCI/AGP bus is decidedly *not* recommended in any situations; it is likely to cause instability or corruption on your IDE channels. Motherboards with a PCI/AGP lock are not difficult to find nowadays if you want to overclock your FSB.
 
The more important question is, how were your hard drives stable at 39mhz on PCI bus if you were running 78mhz AGP bus?

Also from your rig, you have 210x11 overclocking. Shouldnt the motherboard revert to 1/5 or 1/6 divider after 200FSB? Or its stock FSB is 166? I am just trying to understand why your AGP bus is even that high in the first place.
 
Originally posted by: RussianSensation
The more important question is, how were your hard drives stable at 39mhz on PCI bus if you were running 78mhz AGP bus?

Also from your rig, you have 210x11 overclocking. Shouldnt the motherboard revert to 1/5 or 1/6 divider after 200FSB? Or its stock FSB is 166? I am just trying to understand why your AGP bus is even that high in the first place.

This is for a different rig, a VIA KM400 runing a Barton 2500+ at default voltage on a 194MHz fsb. (1/5)

In my experiences, mostly back in the old days with no agp/pci lock, a 39MHz pci bus was never a problem for a hard drive. I understand the newer SATA drives aren't very tolerant, but Maxtor 8MB cache drives are bullet proof.

I really think the data corruption thing is more of a paranoia instead of a problem at 37MHz under, with 40MHz or under being fine if you pick the right components (usually hard drive or video card).

We all overclock our cpu's and video cards to high heaven to scratch out more performance, but neglect the bottleneck of the system, hard drive performance. Just like any overclocking there are risks, but there is also a noticable IDE performance boost when overclocking the pci bus.

Yes, I have several Nforces and a Northwood on a SiS661 with the agp/pci lock, but I still like to dabble with other sometimes older equipment.

I paid $19 for the KM400 and it actually gives decent performance, scoring 14K on 3DMark 2001 with a Ti4600. I use it scrictly for playing UT2003 online rendering in OpenGL, and it kicks butt for that reason.

I am going to build another one for an additional UT2003 rig since they are so cheap. But GF4 Ti's are becoming scarce and 9600 Pro/XT cards are getting cheap, so I would like to try one.

 
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