Question Let me be a little more specific hp g1 600 sff pcie limit

Jan 10, 2021
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So these hp prodeskt computers seem to have a limit in place of 35 watts to the pciE port. Is there a way to disable this limit? I saw something in the bios but im afraid to click it
 

Colif

Win 10 Master
Moderator
It appears the size of the card determines if it can use more than 30 watts on a PCIe slot
All sizes of ×4 and ×8 PCI Express cards are allowed a maximum power consumption of 25 W.
All ×1 cards are initially 10 W; full-height cards may configure themselves as 'high-power' to reach 25 W, while half-height ×1 cards are fixed at 10 W.
All sizes of ×16 cards are initially 25 W; like ×1 cards, half-height cards are limited to this number while full-height cards may increase their power after configuration. They can use up to 75 W (3.3 V×3 A + 12 V×5.5 A), though the specification demands that the higher-power configuration be used for graphics cards only

if your case only allows half height cards they may be restricted to 35

I have seen it suggested to try a card that wants more, but if that fails use a 1030 or similar card that uses less than 30 watts

it may also be a limitation of the PSU = https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/What-is-maximum-power-possible-for-Graphics-card-HP800G1-SFF/td-p/7144031
 
Last edited:

Karadjgne

Titan
Ambassador
Limitations on the gpu too. Most modern gpus after the 900 series? don't use much (if any) other voltage than 12v, so may not be able to claim the full 75w, only able to physically use @ 65w. Which might not be enough for something like a 1050 with a 70w - 75w possible draw.

You'd have to research individual cards to make sure they have a lower pcie slot draw, relying mainly on external 6pin power instead. If that's possible with your psu.
 

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