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4000 Series Bios Flash ?

Dicehunter

Dicehunter

Dicehunter

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Just curious if anyone's done a vbios flash to enable higher power draw, Higher clocks etc... and if anyones done it on the GameRock 4090 OC.

I had a look at mine using the Nvidia-SMI tool and noticed the power limit is 500w and not 600w, Could this be to do with VRM's having a max of 500w before things go boom ? I thought the 4090 had a 600w limit or is that just what the 12VHPWR's max is ?
 
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The limit on the FE is 600W, but AIBs are free to set it however they like. Most cheaper models don't even let you go above the stock 450W, including the non-OC GameRock. Even the premium (priced at least) Suprim X tops out at 520W.

As for whether it's safe or not, a careful examination of the VRM components would be in order. Seems like a lot of risk for little reward to me though. 500W is already insane for a graphics card.
 
There is no point of bios flashing on rtx4090. All the cards are voltage limited not power limited and a new bios can't unlock the voltage, the only way for that is so a shunt mod on the pcb

I think Nvidia locked the voltage on the 4090 so that there would be bigger performances gap compared to 4090ti
 
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Grim5 said:
There is no point of bios flashing on rtx4090. All the cards are voltage limited not power limited and a new bios can't unlock the voltage, the only way for that is so a shunt mod on the pcb

I think Nvidia locked the voltage on the 4090 so that there would be bigger performances gap compared to 4090ti
Click to expand...

Going by the CUDA core count difference and some napkin mathematics I'd expect to see a 5-10% performance gap between 4090 and 4090Ti.

But yeah I'm not doing a shunt mod, I'll leave that for the LN2 people :D
 
Dicehunter said:
Just curious if anyone's done a vbios flash to enable higher power draw, Higher clocks etc... and if anyones done it on the GameRock 4090 OC.

I had a look at mine using the Nvidia-SMI tool and noticed the power limit is 500w and not 600w, Could this be to do with VRM's having a max of 500w before things go boom ? I thought the 4090 had a 600w limit or is that just what the 12VHPWR's max is ?
Click to expand...

As LtMatt as he flashed a Gamerock 4090 OC with a Galax bios.
 
Yes I even sold my 4090 GameRock with the 660W BIOS flashed. Safe to say the person that bought it loved the extra performance available from the BIOS flash and me putting liquid metal on the GPU die.

If I get another 4090 I'll be putting the same BIOS on it too.
 
LtMatt said:
Yes I even sold my 4090 GameRock with the 660W BIOS flashed. Safe to say the person that bought it loved the extra performance available from the BIOS flash and me putting liquid metal on the GPU die.

If I get another 4090 I'll be putting the same BIOS on it too.
Click to expand...

What's the max you saw your card pull please ?
 
LtMatt said:
640W in Dying Light 2 over the course of a 30-60 minute gaming session. Generally power draw was around 575-600W though. 4K all max settings, no DLSS.
Click to expand...

You think the VRM's can take that load ? I noticed on a board shot the GameRock has several empty VRM spots which apparently concerned Buildzoid.
 
Dicehunter said:
You think the VRM's can take that load ? I noticed on a board shot the GameRock has several empty VRM spots which apparently concerned Buildzoid.
Click to expand...
I don't know, I'm not an expert in graphic card VRMs. If you are worried about that sort of thing, use the default BIOS tbh. I had no issues at all when I owned the card running it on the 660W BIOS.

The card also has a BIOS switch, so you could leave the default 500W BIOS and flash the 660W BIOS to the other switch, then switch between them when you want the extra power. Or you can keep the silent BIOS which I think is locked to 450W, up to you mate.
 
LtMatt said:
I don't know, I'm not an expert in graphic card VRMs. If you are worried about that sort of thing, use the default BIOS tbh. I had no issues at all when I owned the card running it on the 660W BIOS.

The card also has a BIOS switch, so you could leave the default 500W BIOS and flash the 660W BIOS to the other switch, then switch between them when you want the extra power. Or you can keep the silent BIOS which I think is locked to 450W, up to you mate.
Click to expand...

Think I'll leave it be, Don't want VRM's going pop and my warranty going bye bye when they check the vbios :D
 
LtMatt said:
You flash the default BIOS back before you RMA. ;)
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If only you could flash the FE bios to lower the minimum fan speed. Although they never go above 30%, the fans on my FE have a horrible noise profile. Why did nVidia invest all that time and effort in engineering the cooling solution to slap crap fans on it!
 
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