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Need help with an "engineering sample" NV35 Nvidia 5900 Ultra 256 meg

K

Karaktu

Moderator Emeritus<br>Elite Member
I've tried flashing this card with the 5900, 5900XT and (just for kicks) 5950 BIOS files found HERE. The 5950 doesn't boot, but the others DO with scrambled letters/ANSI characters and Windows behaves as if there's a bad pipe on the card.

It's driving me crazy! The BIOS on the card is clocked at 250/500 (DDR 1000) by default, with no 3D Performance mode. 🙁

The BIOS Reads:

NV35 P170-5 (256MB, No Perf) VGA BIOS
Version 4.35.20.12.00

Device ID is 0330, Sub Vendor and Sub Device ID are both 0000

VESA Product Name is NV35 Board - p170-5nz

Powerstrip reports:

Adapter ID: NVidia generic, Rev. A1

As I see it, I have three optoins: 1) Find a BIOS that will flash properly on this card; 2) Figure out how to turn on 3D Performance on the existing BIOS; 3) Accept what I have and overclock it for all it's worth.

Any ideas/suggestions that are worth making would be appreciated!

Joe
 
Because it's an engineering sample (take it from someone who has several), there are possibilities that:

1. You have an earlier revision, thus having bugs
2. The RAM on the board isn't able to handle what you're trying to do (the other bioses may change RAM timings, Voltage, etc)
3. You have a card that might have been on a defective PCB, or a number of other defective issues.
 
how do you guys acquire engineering samples? pm me please with answer if were not allowed to post aobout it
 
Try adjusting core/ mem speeds. Also there is a 5900le card that may have a bios that may work? I dont see how it would be that different, but its worth a try i guess.
 
Two possibilities, but related. Perhaps whatever BIOS that you are flashing, doesn't have the proper RAM timings for whatever brand/type/speed/voltage/etc RAM is on the board. Also, I don't know about those cards, but on a GF2 MX that I have, it turns out that doing a normal BIOS flash doesn't actually flash the entire BIOS. (NVFlash mentions something about NV 'strap' settings and jumpering something on the board itself?) There is some sort of "boot block" or something, and doing a "normal" flash doesn't erase nor re-write that table. Perhaps that could be part of the issue, coupled with RAM timing support issues.

Kind of a a shot in the dark, really. Otherwise I don't have any good explaination.
 
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