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Old 03-04-05, 01:58 AM   #2
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Join Date: Sep 2004
Posts: 16
Default Re: Do I have a 5900xt or a 5900nu? (BIOS flashing)

Some developments on my side:

The BIOS my card has, is, apart from the clock frequencies, exactly the same as the club3d 5900NU bios. I compared the two, and I only seem to have a different 5900nu version.
Looking at the thread "basic 59xxx bios changes" seems to comfirm it as well if I look at the 5900 bios part. The bios has a memorytiming of a 5900nu, but a memorylatency of a 5900u / 5950u. :P

Memory doesn't do 850, so I bet it has been relabeled to a 5900xt and sold as such ... still does 820 though, but that doesn't change the fact the core hardly goes beyond 400 ...

Looking at the BIOS I see I can increase the gpu voltage when in 3d ...
not without a risk ofcourse, but as long as I keep an eye on the temperature I should be fine, right? Alright, I'm off to try that out now.

Setting the core voltage at 1.5 gave me a nice bump in speed ... and temperature, in the mid 70s now in 3D, so kind of worried about that. Nevertheless a speedincrease: 450/820 atm. Memory doesn't go higher, and even though the core might, I do not feel like trying that untill I got me some better cooling.
AMD Sempron 2800+ s.754 @ 2Ghz|| Gigabyte K8NS || 1GB MDT pc3200 || 5900XT

Last edited by Kama; 03-04-05 at 05:23 AM.
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