dm- wrote on 2025-02-18, 05:24:

for older cards you have to move strap resistors

Incorrect, see my second edit a couple of posts above.

I think you're on to something.... no matter what I change it to, it always goes to Device ID 0329. I don't suppose you would know which are the hardware strap IDs? I can reference my FX5200, but I wouldn't know where to look

ok
i was playing yesterday with fx5200 bios using NiBitor,
changed id to 5200 Ultra, have 5200 Ultra installed on board
but it is still detecting as a regular 5200

what i doing wrong?

dm- wrote on 2025-02-18, 06:28:

ok i was playing yesterday with fx5200 bios using NiBitor, changed id to 5200 Ultra, have 5200 Ultra installed on board but it i […]
Show full quote

ok
i was playing yesterday with fx5200 bios using NiBitor,
changed id to 5200 Ultra, have 5200 Ultra installed on board
but it is still detecting as a regular 5200

what i doing wrong?

On these older cards you will have to physically change the strap id resistors on the back side of the GPU. You'll have to reference a actual 5200 ultra to see how the resistors should be set up.

chrismeyer6 wrote on 2025-02-18, 13:02:

On these older cards you will have to physically change the strap id resistors on the back side of the GPU. You'll have to reference a actual 5200 ultra to see how the resistors should be set up.

Well, if anyone has that info, I'd appreciate it (Quadro FX500 to FX5200). RivaTuner also works in the meantime.

Here's a pic of the back of the FX500:

Does anyone know how to mod the Quadro4 NVS200 to a GeForce 4 MX440?

Rivatuner does it partially but has "Use ROM straps for PCI DeviceID programming" greyed out... So it only does a very soft mod which does not fool the driver and performance is much lower than it should be.

The only thing I could find was from this article from 20 years ago:
https://web.archive.org/web/20040626114312/ht … DIA/Quadro4Mod/

Did not find any Quadro FX1100 to FX5700 /5700U straps.

Please share

Hello

trying to change straps for fx5200 using nvflash and it did not work.

second value is out of range. if i remove one digit from second value nvflash accept and doing reflash but it's going wrong and card does not work anymore.

I hope I'll mod my Quadro FX 1000, too, this weekend, but after saving the BIOS and trying to actually edit it, my brain just shuts down like I'm a sedated monkey or something. Had two rough nights since my boy is getting his first tooth.

Anyway, the Arctic NVSilencer 2 seems great for this mod, since it not just fits but looks so similar to the infamous "dustbuster" without incorporating its fatal design flaw.

Danger Manfred wrote on 2025-07-19, 10:22:

I hope I'll mod my Quadro FX 1000, too, this weekend, but after saving the BIOS and trying to actually edit it, my brain just shuts down like I'm a sedated monkey or something. Had two rough nights since my boy is getting his first tooth.

Anyway, the Arctic NVSilencer 2 seems great for this mod, since it not just fits but looks so similar to the infamous "dustbuster" without incorporating its fatal design flaw.

So I at least attempted it, step by step, and got so far that I raised the Voltage in 3D mode, which enabled me to clock as far as 490/850. The memory on my Quadro FX 1000 is K4N26323AE-GC1K, so should be capable of 1100 MHz, but CoolBits fails as soon as 860 with the default timings of the FX 1000.

How did you guys find out the right timings, though? I only see a non-human-readable long string, not actual timing values, so I'd only mess it up if I changed anything about it.

Also, the missing caps (130 and 131) - does anyone know what their function is? As in: is there any hope that if I add them, the card might do more than the current 490 MHz core clock?

Danger Manfred wrote on 2025-07-20, 06:35:

How did you guys find out the right timings, though? I only see a non-human-readable long string, not actual timing values, so I'd only mess it up if I changed anything about it.

You use the 5800U Timings. Just get a BIOS from that card and copy them over. No manual editing with random numbers please 😀
I'm sure there are screenshots of the correct 500MHz timings in this thread somewhere. I might've posted some myself.

I'm revisiting this thread because I just bought a second FX1000 for very cheap. I hope the seller actually sends me the card and it works as advertised. It also has GC1K installed as per the pictures. Excited to mod one more. I hope I remember how to do this stuff (and that the card runs on 5800U spec, and not just 5800, which still doesn't seem like a given, but I'll do my best).

the reason for use original quadro bios is a different installed pcb components.

original fx 5800 does have 1 vga and 1 dvi output with no external tdms transceiver.

quadro fx 1000 does have 2 dvi output with external tdms SIL transceivers.

flashing fx5800 bios to quadro will force to use only VGA output, DVI will be lost on both outputs.

ps

found straps for fx 5200, just use chatgpt for this -)

@above me: I wasn't talking about using a 5800U BIOS, I was talking about using the timings from a 5800U BIOS.

My second card works very well. Haven't done any mods yet though. The GC1K Memory only clocks to about 425MHz without artifacts, which is a lot lower than the 460 on my other card.

The GPU seems to mean business though. Here's 500MHz in 3D Mark 03 without any mods and the original voltage of 1,3V. That IS the limit though, I get artifacts at 510. Still, I don't think I got that high with the first card, but I was very occupied with memory clocks on that thing. 😁