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ROG Z890 Hero GPU Stuck at x8

antonyfrn
Level 10

For some reason my GPU wont run at x16 I've tried moving the SSDs i have installed around but no joy on my old system always worked at x16 no issues. Also using the latest 1002 bios this issue has been around since the first bios.

The following M.2 slots are being used, M.2.1, M.2.5 and M.2.6.

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3 REPLIES 3

Saltgrass
Level 14

I was watching a video about the new ASUS case I just ordered and it stated, if you use M.2_1 that the Video card would be limited to x8.  According to the manual, the Hero does not seem to be configurated in that manner.

I am not sure which motherboard the video was using, so if you tried leaving that slot open, perhaps something else is causing the problem, such as the processor being used.  I will not be able to check until the new case arrives.  

Maximus Z890 Hero,
Intel Core Ultra 9 285K

mattehardware92
Level 8

Same problem... have you found some fix about this ? 

Z890 Hero + Intel ultra 9 285k 

snapdragon-x
Level 9

That's odd. Is that a bios bug? According to the specs, only when M.2_3 or M.2_4 are enabled, PCIEX16(G5) will run at x8.

ROG Maximus Z890 Exteme | NZXT C1500 Platinum | Intel Core Ultra 285K | MSI MAG Coreliquid I360 | Corsair Vengeance RGB 2x48GB DDR5 6000MT/s CL30 | Crucial T705 2TB | Lexar NM790 4TB | ASRock Arc B580 Challenger OC | MSI RTX 4090 Suprim Liquid 24G | Lian Li O11 D EVO XL