Asus GeForce RTX 5090 Astral Power Detector+ 12VHPWR Warning After Sleep – Anyone Else?

[aryuss]

Hi all,

I've been consistently getting a 12VHPWR warning from GPU Tweak III every time my computer wakes up from sleep. The warning says that one or more pins are drawing 0A or over 9A, triggering the alert from the Power Detector+ feature.

This only happens after the system wakes up — not during gaming, benchmarks, or any kind of heavy load. Everything else seems to be working fine, and performance is completely normal.

I've already:

• Double-checked the 12VHPWR cable — it's firmly and fully inserted.

• Verified that the GPU is properly seated in the PCIe slot.

• I'm using a high-quality PSU with a native 12VHPWR cable (not using any adapter).

I'm wondering:

• Is this a known issue with GPU Tweak III or the Power Detector+ feature?

• Could this be a false positive triggered by low-power states during sleep/wake transitions?

• Has anyone else experienced something similar?

Any insight or advice would be appreciated!

Thanks in advance.

[Silent_Scone · Accepted solution]

The message appearing after resuming from sleep states is not directly related to vBIOS.

RD has replicated the sleep state behaviour and will be resolved in a future update. 

If you receive the message at any other time, you should investigate by first inspecting the power cable is fully inserted and seeking further assistance if required.

[EddyAlpha]

Hi so I've been experiencing the same warnings/issues, at random times. Sometimes I start my PC up, game for hrs it's fine. Other times I'll start up my system, and immediately upon boot up of a game, the issue will come back.

So when you say the issue will be resolved in a future update, does this apply to my issue also? Or just those who are experiencing this issue upon the system waking from sleep state?

Help in this matter would be much appreciated, as I'm now weighing up whether to put in a warranty claim or hold out for a bit. Cheers

[Silent_Scone]

No, this is regarding the resuming from S3 issue. If you receive the warning message at any other time, take heed of the warning as it may indicate a power imbalance due to the cable or power supply.

[EddyAlpha]

Well my power supply and cable are brand new. It's an Asus ROG THOR Platinum III 1200w also, and I have the IVS cable plugged in also. I've tried reseating the cable on both ends and everything is plugged in correctly. What should you do?

[Silent_Scone]

There's an update coming shortly for the monitoring panel in GPUT, however, if you download HWiNFO now you can monitor the amperage more closely. Run 3DMark Steel Nomad and monitor the amperage behaviour.

[EddyAlpha]

I have tried checking the amperage with HWiNFO whilst Cyberpunk was running and it confirmed there is pins randomly exceeding 9.4A 

[Silent_Scone]

In this case, the cable is exceeding expected amperage limits, indicating a (slight) imbalance issue, which is why the message is appearing.

[1z3c0ld]

This actually sounds like my problem, I have an ongoing ticket with the support around it.

when I cold boot (remove all power) and start the computer, everything works wonders, even draw on all pins.

but if i just turn the computer off, then start it (warm boot in you like) i instantly get bad reading on all pins, Malin them all go around 10a at times…..

still have not found the robot cause of it. Uppdatering motherboard bios, tested with 1 ram stick, swapped PSU and all cables. Even tried 3 12vhpwr cables and the octypus adapter, nothing has done it yet

[EddyAlpha]

Are you using the same power supply as me also? Asus ROG THOR Platinum III 1200w?

[1z3c0ld]

Sadly not, asus x670e-f gaming wifi motherboard and CORSAIR hx1200i as PSU.

now tested with 2 PSUs and 4 brand new cables (3 12vhpwr cables and the included adapter). Also swapped all other powercables to the motherboard.

all show the same problem with cold boot being the only remedy at this moment.

Asus latest reply were that the PSU and or cable were faulty. Now with the above tested I do not think so and are waiting for their respons. This has to do with the card itself or motherboard, that is the only thing not tested. Everything works fine with my old rtx 3090