XFX 5900 to 5950 Ultra Flash...

Krueger81

Diamond Member
Feb 4, 2000
4,196
3
81
Hello,

so I recieved this 5900 in the mail today. :) Great Card. Very heavy and well it looks tight with the chrome bling bling.

Anyway Flashed it to a 5950 Ultra and gave me about 400 extra 3dmark 2003 Points :)

Thanks

Phil
 

Zebo

Elite Member
Jul 29, 2001
39,398
19
81
ya thats cause card went from running 400/850 to 475/950. could have DL cool bits to do the same thing w/o risking your card in a flash. Good for you though.:)
 

Jeff7181

Lifer
Aug 21, 2002
18,368
11
81
Put the old BIOS back on and overclock it to about 475/920 and you'll probably get better performance.
 

Agamar

Golden Member
Oct 9, 1999
1,334
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0
I have one of these, and I think the fan is making a noise....Anybody know what kind of fan I can replace it with?
 

SniperMerc

Member
Dec 2, 2001
75
0
0
Originally posted by: Agamar
I have one of these, and I think the fan is making a noise....Anybody know what kind of fan I can replace it with?

I replaced the HSF on my PNY 5900 with the Zalman Heat pipe http://www.zalman.co.kr/eng/product/view.asp?idx=46&code=013

It's $30 if you include the 80 mm fan, well worth it IMHO, especially sience its QUIET!!!!!!!

also replaced the stock memory heatsinks with some OCZ solid copper BGA ramsinks.

pics

http://snipershide.free-universe.com/new_pics/

Oh and I do have mine flashed from 5900 bios to 5950 Ultra, comes out a bit faster, also seems to handle 4xAA and 8xAF a bit faster than just stock 5900.

Backed off the ram speed of 950 on the 5950 Ultra stock speed, took it down to 900 for most things, was getting minor desktop artifacting, doesnt happen at all in 3d which is weird.
 

Zebo

Elite Member
Jul 29, 2001
39,398
19
81
Originally posted by: Jeff7181
Put the old BIOS back on and overclock it to about 475/920 and you'll probably get better performance.

A lot of people are saying this. Up to 300 pts at same speeds. ooops/
 

bandana163

Diamond Member
Jul 2, 2003
4,170
0
0
Originally posted by: Zebo
Originally posted by: Jeff7181
Put the old BIOS back on and overclock it to about 475/920 and you'll probably get better performance.

A lot of people are saying this. Up to 300 pts at same speeds. ooops/

Memory timings differ in the 5950 BIOS.
 

KoolHonda

Senior member
Sep 24, 2002
331
0
0
The 5950 BIOS also bumps up the voltages to make the higher clocks more stable. I've been tempted to try it on my PNY 5900(o/c's to 5900U speed, but gets artifacts when pushed to 5950U), but I don't have the guts:eek:
 

VisableAssassin

Senior member
Nov 12, 2001
767
0
0
I did the same to my BFG 5900nu but I got the BIOS from a BFG 5950U and had a guy on the hardforum who did a custom BIOS for me based on the BFG 5950U bios :)
 

Zebo

Elite Member
Jul 29, 2001
39,398
19
81
Originally posted by: Vaerilis
Originally posted by: Zebo
Originally posted by: Jeff7181
Put the old BIOS back on and overclock it to about 475/920 and you'll probably get better performance.

A lot of people are saying this. Up to 300 pts at same speeds. ooops/

Memory timings differ in the 5950 BIOS.

Alright I decided my 5900 is going in about a month, and it's already worthless, so what the hell I flashed it to BFG's 5950. AND JEff is 100% correct.

Before flash FX5900 475/950 coolbitted in a 2.34 Barton: 3dmark 2003 = 6338
After flash FX5900 to FX5950 stock 475/950 in a 2.34 Barton: 3dmark 2003 = 6011

Needless to say I flashed back.
 

ponyo

Lifer
Feb 14, 2002
19,688
2,811
126
Originally posted by: Zebo
Originally posted by: Vaerilis
Originally posted by: Zebo
Originally posted by: Jeff7181
Put the old BIOS back on and overclock it to about 475/920 and you'll probably get better performance.

A lot of people are saying this. Up to 300 pts at same speeds. ooops/

Memory timings differ in the 5950 BIOS.

Alright I decided my 5900 is going in about a month, and it's already worthless, so what the hell I flashed it to BFG's 5950. AND JEff is 100% correct.

Before flash FX5900 475/950 coolbitted in a 2.34 Barton: 3dmark 2003 = 6338
After flash FX5900 to FX5950 stock 475/950 in a 2.34 Barton: 3dmark 2003 = 6011

Needless to say I flashed back.


This is assuming your stock overclocks to or near 5950U level. Mine wouldn't. I couldn't even get to 5900U level without artifacts. After the BFG 5950U flash, my card is happily working without any artifacts at 5950U settings. I can go even higher but I'm happy with 5950U setting. Plus I don't have to deal with coolbits and resetting.
 

Zebo

Elite Member
Jul 29, 2001
39,398
19
81
interesting. So it may be supplying more Vcore or Vram when flashed to allow 5950 levels. I could flash again to check. Right now the max I can OC the unflashed 5900 is 520/960 before it fails self test. Have to wonder if the memory could stand more if indeed it suplpied more voltage. hmm
 

ponyo

Lifer
Feb 14, 2002
19,688
2,811
126
Originally posted by: Zebo
interesting. So it may be supplying more Vcore or Vram when flashed to allow 5950 levels. I could flash again to check. Right now the max I can OC the unflashed 5900 is 520/960 before it fails self test. Have to wonder if the memory could stand more if indeed it suplpied more voltage. hmm


Don't trust that self test. Before the flash it told me it could do 500/1050 or something like that. Of course it couldn't without severe artifacts.
 

caz67

Golden Member
Jan 4, 2004
1,369
0
0
Hi.

I flashed mine, then i flashed it back and overclocked it for better results.

I have a Leadtek 5900Ultra
 

CHeavyarms

Junior Member
Jul 21, 2004
1
0
0
What kind of voltage settings should one have the AGP set on in the BIOS?

I have the BFG 5900 and I can't get above a 450/875 overclock. I can set it higher and test alright but in a few days it will fail to boot properly and revert back to 450/850. should I try and flash the BIOS and see if that will let me go higher? Maybe i have some other settings wrong?

I'm new so here is the PC:

p4 2.6C @ 3.25 (simple 1:1 250fsb)
512MB OCZ EB
BFG 5900
ABIT IS7
WD 80GB SE