4090 ROG STIX OC max power draw 430W after 14900K install

[jucca]

Tried my 4090 in my friends PC, who have 1200W with native 12VHPWR connector. I have 1000W.
Still it can't draw more than 430W. Even overclocked.
Seems like it is stucked into Q mode somehow. Please guys. Any help here. 

[jucca]

Hi all. First, please sorry for my  bad english.

Yesterday I've upgraded my existing PC with 14900K (was 13600K).  All the rest is the same.
Went to test it, C23 is great, temps also, max 80C after CInebench test, but then noticed my 3DMark and Superposition benchmark  scores actually went down in comparison  to results with previous 13600K.
Went to troubleshoot, but didn't found anything wrong in BIOS and NV settings. 
But, then noticed low max power draw in HWinfo. Just 430W. Tried to push the limits on 120% in both Afterburner and GPU Tweak III, but remains at max 430W. 
Also, Have two separate Win11 installs, one, barebone just for testing stuff, and normal one, and in both max GPU power draw is 430W
HWinfo and GPUZ attached, after 3DMark PortRoyale benchmark
Before I've installed 14900K max power draw was 580W, now just 430W

Appreciate any help
Thanks

My PC specs are :

14900K @ Asus Ryuin III 360 Push/Pull

Asus ROG STRIX Z790E Wifi II

32GB Gskill @ 6000mhz

Corsair RM1000X

12VPHR cable is from Corsair

[Silent_Scone]

Hi @jucca 

The RM1000X isn't an ATX 3.0 unit and doesn't have a native 12VHPWR cable. Please can you show which cable you are using?

Please ensure the cable is fully inserted into the PSU and GPU.

 

[jucca]

Yes, I know. As I write above, everything worked well, with 580W on 13600K
Cable is Type 4 to 12PVHR. 

Both 8 pins are connected, tried reseat the GPU, 12PVHR connector, as well as GPU itself, also different ports on PSU
https://www.corsair.com/us/en/p/pc-components-accessories/cp-8920334/premium-individually-sleeved-12...

[Silent_Scone]

The cable should be fine up to 600W, yes. Assuming the sense pins are detected. Are you able to use the adapter that came with the GPU and see if the behaviour is the same?

[jucca]

No. As PSU came with only 3 PCIE cables. This GPU requires 4. Can I use one that is labeled for CPU? They look the same.
thanks for your help.

[Silent_Scone]

No. The ESP12v is a different cable, do not use that as the pinout is not the same.

Yes, the adapter requires 4 but for good reason. Double-check that the RMShift cable is inserted at both ends fully and is secured.

Is the Power Detect LED indicator on the GPU off or on when the system is powered up?

[jucca]

Ok, thanks for pointing that out. Will try to search some of my friends if they have spare Corsair PSU PCIe power cable.
BTW, it's not shift, it's RM1000X normal one
There's no LED light ON when powered

[Silent_Scone]

Ok, no worries. I'd also be tempted to rule out the riser cable, if you can.

[jucca]

But until yesterday it worked flawlessly. Tried to reseat even that, but will try without mount. Crossed my mind, but wanted to avoid dissasembling that again. Hoped it's something trivial 🙂