Astral 5090 12VHPWR Over Amp Warning On 550w or Above

[Tafty]

Hi All,

i need some help as i cant seem to troubleshoot this problem any further, so i have an astral 5090 oc and recently i started getting over amp warnings coming from power detector+. it made me panic enough that i went and got a new Direct to psu 12vhpwr cable. but unfortunately it is still happening, I'm aware of the issue with windows 11 and it happening when it comes out of sleep however i have this disabled on my machine so not that. the only thing that has changed recently is the 25H2 update that may be related.

I have tried the obvs stuff, like making sure the pci is fully inserted and replaced the cable etc

relevant specs are as follows

-Havn HS420 VGPU case (confirmed the pci express extension is fully inserted and the gpu is fully in the pci slot)

-Lian li Edge Gold 1200w (confirmed the cable at both ends, looks perfectly fine to my eyes)

-Cablemod Univserval Pro Modmesh sleeved 12V-2x6 direct 12vhpwr (same problem as the lian li cable)
-alphacool waterblock(probably unrelated but am mentioning it)

i did some testing with furmark and worked out if you set the power target to 88% i can run it for hours and it all be within spec, anything over that and i will start to see pin imbalances.

i dont really know what to do at this point but am driving a 4k 240hz asus oled so would like to be able to get the full performance from the card.

[Silent_Scone]

Hi @Tafty The Astral 5090 OC has sensitive power telemetry. Power Detector+ monitors per-pin current distribution on the 12V-2x6 and issues warnings long before anything becomes unsafe, but it's still exceeding a threshold that warrants your attention. Have you tried without the riser connected? A faulty riser could manifest in this way due to grounding/impedance

[Tafty]

Hi @Silent_Scone thanks for the prompt response.

so unfortunatly since ive fitted a custom loop no i haven't tested it in directly in a pci slot, however a couple of things to note, this is a brand new case and i fully stress tested the entire system before fitting my watercooling, it is just very unfortunate that the problem has started occuring now.

if you think i need to investigate the riser i am happy to look at that next, i work in the industry so am fully aware of parts just failing and wont rule it out, however it is abit more involved because of my build. i will try and have a look at it over the weekend.

however i have something that may be of interest, i turned my pc completely off and unplugged the power cable from the back and left it for 5 minutes, I've turned it back on now and i can again run furmark at the full 600w without issues, I wonder if windows fast start-up is causing similar issues as the sleep bug, I'm currently going and investigating that as a precaution. i have noticed a completely different range of amperage from when it is working as expected to when it is likely going to give me the warnings.

i will fill you in once i know more, and again thank you for the initial reply

[Tafty]

i forgot to include a screenshot of how it is now, that is exactly what i would expect to see. very nice balancing across the pins, i also have fast startup allready disabled.

[Tafty]

Hi Silent,

I haven't had time to teardown my system but I have done some further troubleshooting. I am able to fully recreate the problem and at least get it back to proper balance between the pins. so as i said before i cured it initially by fully removing the plug from my pc for 5 minutes then turning it back on.
Well today my pc had been left plugged into the wall all night as it usually is but turned off, i turned it on first thing this morning and could instantly see an imbalance across the pins once my sensor panel loaded. i loaded up furmark knowing Fullwell gputweak would give me a warning as soon as it started pulling over 550w which it did. i shut my machine down again and switched off the plug again, this time i only did it for about 10 seconds, i turned it back on and then sure enough normal balancing returned, I've been playing arc raiders most of today and keeping an eye on the load(have a corsair xeneon edge under my main monitor so added the pin load to my sensor panel) i have had absolutely no issues at all and it has been working exactly as i expected. 
at around 3pm i turned my machine off and went to grab some food with my kids, i was out of the house for about an hour, after we had ate and stuff i went back and turned my machine back on, and once again i had the problem with the load being imbalanced. you can see it even at idle as i expect to see 0.80ish across all the pins, but a couple of them were sort of 1.2a with a couple them at 0.40. i once again shutdown my computer turned the plug off and on and then it came back as expected.

i personally at this point don't think it does relate to the riser, however i have a x870 apex im planning on putting into my machine, im just waiting on a thermal grizzly mycro as I'm delidding my 9950x3d. when i carry out that work i will put my gpu back in the main pci slot and report back. im thinking the problem is to do with the psu and might buy another one just to confirm that, but want to test one thing at a time.

if the above makes sense and you have any ideas please im open to investigating this further, i had a quick google and cant see anyone else having a problem like this so i believe its likely isolated to my pc...it is just very annoying. I'm just going to start turning it off at the wall when I've finished with it for the time being, I don't actually need to leave it on anyway so its not a big deal.

[Silent_Scone]

Hi @Tafty 

Are you able to confirm if the same behaviour occurs if the system wakes from sleep (S3 Resume)?

Please can you export a sysinfo file?

1. Press Windows key → type System Information and open it.

2. Wait a few seconds for it to gather data.

3. In the menu, click File → Export

Please also list your system specs and BIOS revision for the motherboard and GPU. Ensure both are fully up to date via the support portal.

[Tafty]

Hi @Silent_Scone,

sorry for the delay in responding i havent had any time to look at this.
so im unable to confirm if it relates to S3 as i have it fully disabled at bios, i have a aquatuning next flow in my machine and going in to sleep or hibernation causes it to start flagging an error as the pump stops.

i have found another user on the forum who reported having the exact same issue as me using an x670 gaming wifi board, im using a x870 gaming wifi. i actually have a brand new crosshair hero motherboard that im planning to put in over the weekend as i need to change my cpu waterblock. i will report back next week if it has changed my current situation but its very easy to recreate the current problem.

[Silent_Scone]

Yes, I'd seen the other report. Unfortunately, as of right now, any replication hasn't been possible. Let me know how you get on with the replacement board.

[Tafty]

Morning @Silent_Scone,

So i swapped over my motherboard on Friday evening, i haven't changed anything else in the system to try and get to the route problem. i can confirm that i have not seen the issue with pins being imbalanced since ive swapped to a crosshair hero. this makes me believe the x870 gaming wifi was in fact the culprit.

I'm going to continue to monitor the situation just incase but it was so easy to recreate initially I'm pretty confident this is now resolved. my original x870 gaming WIFI is still under warranty, so it makes sense for me to RMA this now?

[Silent_Scone]

As the issue seems extremely niche, even with a clear SOP I wouldn't be surprised if service struggled to replicate anything. I've only seen one other report of this behaviour so far. If you do decide to send it in, let me know the RMA details please.