Question Corsair HX1500i (2022) PG rating of 90ms expert needed...

[lawshadow]

Hi all,

So i got the Corsair HX1500i (2022) psu.
Used a PSU tester (hooked up the 24pin - cpu - gpu - molex cables on the tester) everything seems fine voltage wise.
But the PG (Power Good Delay) sits at 90ms. Is this the normal value or within spec for the HX1500i? I do read that a rating of below 100ms is considered normal also normal for ATX3.0 certified PSU's. But from my understanding a PG lower then 100ms isnt good butthen again we have something like a very large inrush...

Your advise/help is needed not gonna hook this unit on my expensive pc rig. Weird a whopping 360 euro PSU and now this thing is stressing me out waited so long all my hardware is sitting now...

Thanks in advance.

 

[Aeacus]

But the PG (Power Good Delay) sits at 90ms. Is this the normal value or within spec for the HX1500i?

Well, PWR_OK values are often considered abnormal if detected lower than 100 ms or higher than 500 ms.

As far as HX1500i goes, based on reviews, it's PWR_OK should sit around 145ms,
review 1: https://www.techpowerup.com/review/corsair-hxi-series-1500-w/8.html (Look for Timing T3.)
review 2: https://www.igorslab.de/en/corsair-...x-3-0-a-juicy-power-source-for-enthusiasts/5/ (Look for Timings, 2nd and 4th image.)

Used a PSU tester

Which one? And when was the last time it was certified?

 

[lawshadow]

Well, PWR_OK values are often considered abnormal if detected lower than 100 ms or higher than 500 ms.

As far as HX1500i goes, based on reviews, it's PWR_OK should sit around 145ms,
review 1: https://www.techpowerup.com/review/corsair-hxi-series-1500-w/8.html (Look for Timing T3.)
review 2: https://www.igorslab.de/en/corsair-...x-3-0-a-juicy-power-source-for-enthusiasts/5/ (Look for Timings, 2nd and 4th image.)



Which one? And when was the last time it was certified?

Thanks for the reply,

So ive also been asking on Corsair forums the guy told me it is normal to have 80 - 90ms PG for these PSU's elsewhere i got similar answers. When i removed one of the cables it was either the gpu or cpu it then went to 110ms pg maybe no cpu is getting any current. I used this PSU tester see below link on the Corsair forum scroll down a bit to see the pic with readings and then you see the replies: (they guy who responded said is normal ive also seen Corsair RM PSU thread had the same 90ms PG from a tester as well...reply also normal....

https://forum.corsair.com/forums/topic/182090-build-with-corsair-hxi1500-watt-2022/#comment-1037903

I checked your links with the timings is this with a LOAD applied meaning everything is hooked up? Because with the tester NOTHING is hooked on to the PSU except the PSU cables cpu - gpu - molex - drive cable and the tester it self. So is there a difference between PG on a full pc and just ONLY the PSU hooked up to a tester?

In regards of the ATX3.0 for the Corsair HX1500i (2022 model) it is certified according to JonnyGuru and others it STILL need to be shown on Cybenetics should be there soon, since the Corsair RM line up DOES has ATX3.0 on Cybenetics you can see that clearly. Even tho the HXi is a higher end model then the RM what has told the official ATX3.0 certificate should be up soon.

 

[Aeacus]

So ive also been asking on Corsair forums the guy told me it is normal to have 80 - 90ms PG for these PSU's elsewhere i got similar answers.

While 80-90 ms is a tad bit too low for "normal", LeDoyen is correct that if the values would be way out of spec, CPU wouldn't let PC to boot up.

Then again, as time goes onwards, the "normal" changes and there are new norms. E.g few years back, 650W PSU was more than enough to power any single GPU build. But look what it is today, you'd need 1.2kW or even 1.6kW PSU, just to power the build with single GPU. Or when running i9-13900K, your CPU will run 95C at all times, regardless the cooling and this is the new "norm" for high-end Core i9. So...yeah, there's that.

I used this PSU tester see below link on the Corsair forum scroll down a bit to see the pic with readings

That PSU tester only measures PSU while it is powered on and on idle. Might as well use multimeter, gives same results. Still, not the proper way to test PSU, since it won't put any load on PSU.

All this PSU tester does, is like you turning on the car engine and when engine starts, you instantly assume that the car drives just fine, without ever doing the test drive.

I checked your links with the timings is this with a LOAD applied meaning everything is hooked up? Because with the tester NOTHING is hooked on to the PSU except the PSU cables cpu - gpu - molex - drive cable and the tester it self. So is there a difference between PG on a full pc and just ONLY the PSU hooked up to a tester?

Reputable PSU reviewers (those i linked), will put actual loads on PSU and measure how PSU fares. So, all data is "test drive", rather than "idling engine", as your PSU tester is.

In regards of the ATX3.0 for the Corsair HX1500i (2022 model) it is certified according to JonnyGuru and others it STILL need to be shown on Cybenetics should be there soon, since the Corsair RM line up DOES has ATX3.0 on Cybenetics you can see that clearly. Even tho the HXi is a higher end model then the RM what has told the official ATX3.0 certificate should be up soon.

Well, if i were to look Cybenetics database for Corsair units,
link: https://www.cybenetics.com/index.php?option=database&params=2,1,28

There is a filter for ATX 3.0 (just left from Search bar) and once i place check mark into there, only two Corsair SF-L units show up, as being ATX 3.0 compatible. So, where's the compatible RM-series that you're talking about?

 

[lawshadow]

Thanks a lot for the reply,

So would you say according to the intel gathered on what LeDoyen said and YOUR personal opinion on these new gen psu's with lower PG values i can just hook everything ie my MB -CPU etc etc without much worry it seems all the other voltage readings are within spec for 12v - 5v - 3v what do you say? Where can i test the actual PG via software or is there a simple to use software maybe with Corsair own icue software that comes with the PSU?

With that said once i put some actual load on my rig even just IDLE it is still a load i can see the PG timing with certain software correct?

As with the ATX3.0 check:

Intel power supply selector (latest)

https://www.intel.com/content/www/us/en/content-details/740677/power-supply-selector.html

There you see a list and the RM series do have a ATX3.0 certification ie RM750, RM850, RM750x, RM850x, RM1000x, RM1200x
So i got confused with Cybenetics but it should be up there "soon" as well according to forum posts on reddit and overclock.net. Since the HXi series are "higher" end in comparisson with the RM series...JonnyGuru tested these HXi already with ATX3.0 in mind its already build in in their HXi series. Actually if memory serves me well it's more like ATX2.5 for the spikes...

 

[Aeacus]

As with the ATX3.0 check:

Intel power supply selector (latest)

https://www.intel.com/content/www/us/en/content-details/740677/power-supply-selector.html

There you see a list and the RM series do have a ATX3.0 certification ie RM750, RM850, RM750x, RM850x, RM1000x, RM1200x

You misread the Intel spreadsheet.

What you read, was that current Corsair RMx PSUs have ATX 3.0 standard. While in fact, the upcoming RMx Shift PSUs, with side mounted power sockets, are the ones that have ATX 3.0 PSU standard.

Here's article about RMx Shift,
link: https://www.tomshardware.com/news/corsair-rmx-shift-psu-modular

So would you say according to the intel gathered on what LeDoyen said and YOUR personal opinion on these new gen psu's with lower PG values i can just hook everything ie my MB -CPU etc etc without much worry it seems all the other voltage readings are within spec for 12v - 5v - 3v what do you say?

No need to worry. PSU is solid as a brick and you'd be fine.

Where can i test the actual PG via software or is there a simple to use software maybe with Corsair own icue software that comes with the PSU?

I'm not aware that PWR_OK can be tested via software. PWR_OK is tested with oscilloscope.

Here's PSU testing methodology, namely hold-up time and PWR_OK, by Aris Mpitziopoulos, who is the founder and owner of Cybenetics and who also does PSU reviews for Tom's Hardware,
link: https://www.tomshardware.com/reviews/how-we-test-psu,4042-6.html

And here's Aris'es setup:

Proper PSU testing equipment starts from easy 5K, while what Aris has, costs 10-20K.