Corsair HX 1200i low voltages...

Levirginien · 13 Feb 2021 at 22:14

Should I be worried? Could this cause some of the BSOD and freezes I have been experiencing occasionally?

Corsair HX 1200i voltages read:

+3.3v= 3.216v

+5v= 4.920v
+12v= 11.872

system includes:
Motherboard: ASUS Maximus Z390 Formula on BIOS 1802
CPU: Intel 9900k
OS: Windows 10 Pro (latest Fall Edition)
GPU: GTX 1070

mickyflinn · 13 Feb 2021 at 23:05

Are those volts at idle or under load ?

ATX standard calls for a +/- 5% tolerance on each rail

Levirginien · 13 Feb 2021 at 23:19

These are idle voltages...
Weirdly, my AX 760 is spot on in terms of voltages...

mickyflinn · 13 Feb 2021 at 23:31

Levirginien said:
These are idle voltages...
Weirdly, my AX 760 is spot on in terms of voltages...

Test at load

ATX spec +3.135 V to +3.465 is the acceptable range for the 3.3V rail

This article will show what components are on each rail.

https://itigic.com/voltages-of-12v-5v-and-3-3v-for-each-component/

Others such as @Armageus have more insite than myself.

Levirginien · 14 Feb 2021 at 13:02

@mickyflinn: Thank you for your input. Informative article... It looks like the PSU is running within spec after all.
I was just curious about the fact that when I plug in my backup AX760, all voltages are suddenly bang on spec on all rails without any discrepancy...
I guess my occasional BSOD might be due to something else...(eg trying to run some G-Skill 4x16Gb 3600 Mhz at XMP).
Again, Thank you for your time.

Marc250 · 14 Feb 2021 at 17:48

FYI my HX1200i reports (using HWMonitor when idle) 12.063, 5.016, 3.281

Hakanese · 14 Feb 2021 at 17:55

I think it's due to your system not really taxing your psu.
I recall something, but I could be wrong, about how not having enough load on the larger psus can cause issues, but I'd need to check.

Levirginien · 15 Feb 2021 at 11:57

That is exactly what I was thinking...

Levirginien · 15 Feb 2021 at 12:00

Hakanese said:
I think it's due to your system not really taxing your psu.

That is exactly what I was thinking...

Hakanese · 15 Feb 2021 at 12:07

At least you will be well covered for a 3000 series GPU.

Levirginien · 15 Feb 2021 at 16:57

Hakanese said:
At least you will be well covered for a 3000 series GPU.

If I can afford any of those when available...

bjmnz · 17 Feb 2021 at 06:40

Not sure how old your PSU is, but there is a recall for some 2020 built HX1200 and HX1200i. I think the related issue was showing more as boot problems.