ASUS’s 800W “ROG Matrix” XOC BIOS Flashed on Several GeForce RTX 5090 GPUs From Gigabyte, PNY, & MSI, Massive Boost In Clocks

[erek]

“Matrix BIOS isn’t failing on the Astral because of some mystical money grab conspiracy, it’s failing for a very simple, physical reason: Astral only has two fan headers, while the Matrix PCB is wired for three. Asus intentionally split the center and rear fans into separate headers starting with the Astral White, and that wasn’t arbitrary. They clearly did it to address the widespread complaints about aggressive fan noise.
For what it’s worth, a colleague of mine is running a Matrix BIOS on his Astral White 5090 without a single hiccup. And that lines up with what we’ve seen across the board: any card equipped with three fan headers has no issue running the Matrix BIOS.
The inverse is also true. If the BIOS exposes three fan control channels but the card physically only has two, it just doesn't work. That’s exactly why no other BIOS plays nicely with Astral or TUF cards, except the Gigabyte water BIOSes. Because, those are designed around two or less fan channels.
Same logic explains why the Astral BIOS boots on GB cards but you lose one fan, the BIOS expects three channels, and the hardware simply isn’t there to answer.
via Gmc_Cnm (OCN Forums)

One user has shared some performance numbers, and it looks like the new BIOS makes the non-ASUS Matrix RTX 5090s sip much higher power and enables higher clock speeds (+100/200 MHz). This can overburden the 16-pin power connector, which has already been troublesome on the RTX 5090 & RTX 4090 graphics cards.”

Source: https://wccftech.com/asus-800w-rog-...rtx-5090-gpus-gigabyte-pny-msi-massive-boost/

 

[LOCO LAPTOP]

I had some time today for testing. Loaded it on my PNY 5090 Epic X and ran 3d mark.

https://www.3dmark.com/compare/sn/10231797/sn/10231696/sn/10232305/sn/10231890

From left to right.

Test 1. 100% power limit ~800W with OC of +200 core +2000 memory.
Test 2. +200 core +2000 memory 80% Power limit about 625W peak
Test 3. Stock ROG Matrix Vbios with no changes
Test 4. Basically PNY OC clocks and 75% power limit, about 600W peak.

Not a massive difference if you don't OC between a stock metrix and a epic x card. 3FPS difference on average. That additional power does come in to play when you OC.

I might keep this vbios on for the %80 power limit, it allows the clocks to be pushed a bit higher than what I could on the stock PNY vbios without major power increase. It's more likely ill revert back to the stock one. These 16 pin connectors cannot be trusted.