GPU not getting enough power.

Tsokerinos · September 17, 2023

Hello, I recently got myself an Rx 6600 produced by MSI and I cannot seem to get it to max out on its wattage consumption. According to AMD Adrenalin and GPU Z my GPU is capping at 100 watts. I have a friend who has the same graphics card but from another manufacturer and he has the ability through AMD Adrenalin to raise the power draw but I can only lower it . I have the latest BIOS update installed and AMD Adrenalin. I also tried Formatting my windows but nothing seems to work . I have come to the conclution that my motherboard is the issue but im not sure .
My specs are :
CPU : Amd Ryzen 5 2600
Motherboard : Gigabyte A320m S2H V2 rev 1.0 ( B350)
GPU : MSI Rx 6600 MECH 2X ( On PCIE 8x 3.0 )
PSU : BeQuiet System Power 9 400W
RAM : 2x 8GB at 3200Mhz Patriot Viper 4

SSD : 1x SATA 500Gb Samsung 870 and 1x NVME 500Gb WesternDigital SN550

(P.s I have tried overclocking the graphics card but it is still stuck at 100 watts.

If the motherboard is the issue then im getting an Asus Prime B450M-A II . If you have any better suggestions on motherboards please hit me up , thanks in advance for anyone kind enough to help! )

Naijin · September 17, 2023

6 minutes ago, Tsokerinos said:

Hello, I recently got myself an Rx 6600 produced by MSI and I cannot seem to get it to max out on its wattage consumption. According to AMD Adrenalin and GPU Z my GPU is capping at 100 watts. I have a friend who has the same graphics card but from another manufacturer and he has the ability through AMD Adrenalin to raise the power draw but I can only lower it . I have the latest BIOS update installed and AMD Adrenalin. I also tried Formatting my windows but nothing seems to work . I have come to the conclution that my motherboard is the issue but im not sure .
My specs are :
CPU : Amd Ryzen 5 2600
Motherboard : Gigabyte A320m S2H V2 rev 1.0 ( B350)
GPU : MSI Rx 6600 MECH 2X ( On PCIE 8x 3.0 )
PSU : BeQuiet System Power 9 400W
RAM : 2x 8GB at 3200Mhz Patriot Viper 4

SSD : 1x SATA 500Gb Samsung 870 and 1x NVME 500Gb WesternDigital SN550

(P.s I have tried overclocking the graphics card but it is still stuck at 100 watts.

If the motherboard is the issue then im getting an Asus Prime B450M-A II . If you have any better suggestions on motherboards please hit me up , thanks in advance for anyone kind enough to help! )

Seems to be normal to me. The power draw reported by software is not the full GPU power draw. You should add about 15-30% depending on the card to get your full power draw. Your card should do 132W as far as I can tell, which seems accurate to see 100W power draw in the software.

okkee · September 17, 2023

this might be helpful

https://ibb.co/mtWcD7F

tldr: its not capped at 100w that's just what it sends to software, which is the chip-power. apparently. i really don't know much about all this.

Also, is there a specific reason why you're using PCIe x8? Or is that the only slot on the board?

Edit:

If you feel its having a significant impact to performance, then try using MorePowerTool from Igor's Lab to change the power draw.

Alex Atkin UK · September 17, 2023

If its reaching the clock rate it should be and the GPU usage it should be, I'd say its normal. Remember, the power limit is the absolute maximum the card can handle and you're never going to be utilising every single piece of silicon at the same time.

Same on NVIDIA, I rarely see my 4090 go above 400W at full clock rate and 100% GPU usage, because that 100% doesn't actually mean 100% of the silicon is in use. My guess is its more about the rendering pipeline being fully utilised, but as there will be various combinations of features in use (raster, RT, compute, video encoders) it can only really be an estimate. How those things are being used on a per game/workload basis will differ, so some at 100% will use more power than others and small fractions of time the GPU is waiting on the next command might not accurately show.

As for 3D Mark I notice you are a little below average on score but you on a low-end motherboard which for all we know is holding the CPU back a little.