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ROG Strix X470-F Gaming voltages interchanged

draconis_rex
Level 7
Hey everyone, I have what seems to be a very weird problem... Just built a new system using a ROG Strix X470-F. Specs are:

ROG Strix X470-F Gaming
AMD Ryzen 5 2600x
16Gb G.Skill Trident-Z DDR4 RAM
Sapphire Nitro+ Radeon RX580
DeepCool Captain 240 EX RGB AiO Cooler
Corsair RM750x PSU
Samsung 970 EVO 256Gb NVME M.2 boot drive
Samsung 860 EVO 1Tb SSD

So here's the problem: the system boots up fine, but when it gets into Windows (10), I get a message saying, "Warning +12V voltage 3.313v"
Checking the voltages as displayed with AI Suite, it shows the +12v value as 3.313v, and the 3.3v value as 12.099v. In other words, the +12v and 3.3v values seem to be interchanged. The system will run fine for a random period of time, then the screen will go black, and the system locks up, requiring a hard reboot at the PSU to start up again. And here's some more weirdness... The voltage values as displayed in the BIOS are correct. I swapped out the PSU for a known-good one from another system (same wattage), removed and reinstalled my graphics card (which had been running fine in another system prior to installing it in this one), checked all power cables and connections, and even tried clearing CMOS. I flashed the BIOS to 4011 as soon as I had completed the build, so old BIOS is not the problem. Heck, I even flashed it back to the earlier version just to see if that would do anything, which it didn't. Anybody out there have any ideas? Thanks in advance for any help.
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2 REPLIES 2

restsugavan
Level 13
2600X Why not ask people who use AMD system? . I don't know anything on Ryzen. Sorry.
W11CANARY 26085.1 Core i9 7980XE 02007006 MCE ME 11.12.95.2499 R6E OFFICIAL BIOS 3801 SAMSUNG OG9 FW 1019.0 SSD 970 EVO PLUS 1 TB x 3 NVIDIA RTX 4090 GAME READY 551.86 64GB GSKILL DDR4 3200MHz JBL 9.1 Sound Bar DTS-X

Delta9K
Level 9
That is wacky for sure. When did this start happening - After you first completed the build and installed windows ? Or later, like after installing AIsuite 3 or driver softwares? In addition to AIsuite do you have any other "Monitoring" or "Control" Software installed, something that could be conflicting?

You are sure the 24pin is seated properly?
Have you taken the AIO pump off reseated the CPU after checking pins are not bent and reinstalled the pump block etc. not too tight?
This may sound dramatic but have you thought about removing all the components from the chassis and assembling out side - you know, mainboard on the box it came in, install CPU RAMS VGA etc etc. just the bare minimum of components needed then power things up to see?
Other systems in addition to rig in the profile specs:
Aorus Master x570, 3950X, 32GB GSkill c16 @3800, Sabrent PCIe4 1TB, Sabrent 1TB, 860Evo 1TB, 2080 Super, HX1200i, Celsius S36, Define S2, pg348q
Aorus Master x570, 3900X, 32GB GSkill c16 @3800, Sabrent PCIe4 1TB, 860Evo 1TB, 5700XT, HX1000i, H150i Pro, Obsidian 500D, LG32GK650F-B
MEG x570 Unify, 3800X, 32GB GSkill c16 @3800, Sabrent PCIe4 1TB, 860Evo 1TB, GTX1080Ti, SSR-850PD, Celsius S36, Define R6, u3415w