Saturday, November 29th 2025
2,000 W XOC BIOS for ASUS GeForce RTX 5090 GPU Appears
The GPU vBIOS designed for extreme overclocking is generally intended for professional overclockers, but sometimes these versions become accessible to the public. Recently, a 2,001-watt XOC BIOS for ASUS GeForce RTX 5090 GPUs has emerged, enabling unprecedented power limits. This development offers multi-kilowatt-class overclocking opportunities to enthusiasts eager to experiment with their ASUS GeForce RTX 5090 cards. The XOC BIOS sets the core voltage to 1.15 V by default, regardless of the software voltage slider's position, even if the slider is at zero.
Previously, we only saw the 2,001-watt XOC BIOS for the China-exclusive ASUS ROG Astral RTX 5090D and Galax GeForce RTX 5090D HOF. This XOC BIOS allowed Galax to achieve a GPU core speed of 3,570 MHz and a GDDR7 memory speed of 2,250 MHz, boosting the effective memory speed to 36 Gbps with a bandwidth of 2.304 TB/s, nearly 29% above the standard specification. Such extreme overclocking requires multiple fused 12 V-2×6 cables or custom power delivery to bypass the connector's 600-watt limit. Additionally, custom water or LN2 cooling is necessary to prevent overheating. Installing this BIOS automatically voids the warranty, so enthusiasts should exercise caution when experimenting. This time, the XOC BIOS is compatible with the regular RTX 5090, but caution is advised when dealing with third-party BIOS, so we don't recommend it.
Sources:
Overclock.net, via VideoCardz, TPU GPU DB
Previously, we only saw the 2,001-watt XOC BIOS for the China-exclusive ASUS ROG Astral RTX 5090D and Galax GeForce RTX 5090D HOF. This XOC BIOS allowed Galax to achieve a GPU core speed of 3,570 MHz and a GDDR7 memory speed of 2,250 MHz, boosting the effective memory speed to 36 Gbps with a bandwidth of 2.304 TB/s, nearly 29% above the standard specification. Such extreme overclocking requires multiple fused 12 V-2×6 cables or custom power delivery to bypass the connector's 600-watt limit. Additionally, custom water or LN2 cooling is necessary to prevent overheating. Installing this BIOS automatically voids the warranty, so enthusiasts should exercise caution when experimenting. This time, the XOC BIOS is compatible with the regular RTX 5090, but caution is advised when dealing with third-party BIOS, so we don't recommend it.
43 Comments on 2,000 W XOC BIOS for ASUS GeForce RTX 5090 GPU Appears
I do own a Seasonic PX2200 (2200W), yes you saw that right 2200W just for my 5090..custom 4x8 pin 12vhpwr cable coming in next week (AWG16)
so far this BIOS is only capped to 1200w (MSI AB slider upto 120% only), perf to power ratio is as usual bad with the black astral, its how asus made it gimped vs the white Astral and the Matrix Platinum, but overall a nice bump on PL I can now steadily play on 3.1ghz core with my Astral and not see it throttle due to PL being hit early, currently using the 2x8pin 12vhpwr connector from seasonic and the current balancing is pretty good, I tried a dirty 800w run and the max I see is around 10.5-10.7 AMPS on each line, max temps are around 66c for me with 75% fans on the Astral.
I got a Sapphire 9070 xt with that plug and keeping close eye on it, some have already had burning plugs..
(so careful with exceeding a "safe" voltage level 🔌 , or it can go up in smoke 🚬 accompanied by a nice burnt semiconductor stench bringing up childhood memories of applying too much voltage to a light emitting diode or an integrated circuit :laugh: )
2000W?!?!
Need a massive liquid cooler for that, probably a 1/2" thick PCB with large copper traces to handle that.
I=2000W/12V = 167Amps
Need about eight 8-pin connectors to keep the amperage around ~5A per wire
Might have to put an arc flash warning on it...................
And neither is this card.. but it can..
I'm using it on my shunted 1200W, so I have 2400W power limit, but after running it at 1.15, it is 1200W average, not more, so the bios is limited somewhere
And by the way, don't be scared about the power, I'm running shunted 1200W with Gigabyte WB bios at 800-900W average since months, every day, with very very long gaming session, it is no issue at all.
at 800-900W average, the connector is about 40-45°C maximum
its just maxed out at 1200w guys don't be cry babies as if you own the card and scared to death, Astral's PCB can eat through 1200w like a hot cake, its stock cooler can handle around 900w cooling (max I get on 900w PL is 71c with 70% fan speed..nothing lethal..yet..
still waiting for my waterblock, I already got the shunts for 1200w mod, just poking around what my card's maxed out, so far my max voltage on core is 1.09v, a bit slouch/turd of a sample.