Question Is my psu dying?

[pc_newbie117]

Hi all, I've been having a problem with the sleep function of my pc: If I let it go into sleep mode or manually switch it to sleep and it stays like that for a significant period of time, upon waking it via keyboard or mouse, it will shut off after a second. It will then turn on manually again after a few seconds and begin booting up as normal. If I try turning it on manually after it initially shuts down, it'll shut back down again and both my monitors will struggle to display anything. Once it boots up normally, everything is fine and nothing is seemingly wrong with it. It just shuts down everytime after being in sleep for a long time (e.g overnight), though it is fine if it only sleeps for a few minutes before waking. I'm starting to suspect my PSU is dying, but I can't find any other problems or causes online when I've looked for them. My temps are all normal while idle and gaming too. As a side note, sometimes my second lower res monitor will shut down briefly before turning back on (usually while gaming) but this may be due to not having a high speed hdmi cable for it/

SPECS:

CPU: Intel Core i7 4790k
Cooler: Noctua NH U95 Cooler
MB: Acer Aspire TC-605
GPU:ZOTAC GTX 1650
RAM: DDR3 SK Hynix HMT41
Storage: WD Green 1.8 TB
PSU: Thermaltake 750W Gold rated (around 5 years old)

Things I tried:

-Turning on High performance/balanced performance. Neither made a difference.
-Turning on/off fast startup
-Tried switching from S3 to S1 (not supported apparently)
-Checked all hardware/dusted off internal parts. Nothing seems out of place
-Updated GPU drivers

Anyone have any insight into what's going on?

https://imgur.com/a/1N0hZId

View: https://imgur.com/a/1N0hZId

 

[Darkbreeze]

What is the exact model of your Thermaltake power supply?

Do you own, or can purchase or borrow, a volt meter? You can get them for like 5 bucks or less usually at Walmart or Harbor freight if you are in the US.

 

[pc_newbie117]

What is the exact model of your Thermaltake power supply?

Do you own, or can purchase or borrow, a volt meter? You can get them for like 5 bucks or less usually at Walmart or Harbor freight if you are in the US.

Looks like a Toughpower 750w Gold 80 plus. I do not own a volt meter. What would I do with it?

 

[Darkbreeze]

That SHOULD be a halfway decent PSU, but then again like you said, it IS 5 years old so........never know really. It was probably a five year quality PSU when it was new, which it ain't anymore. LOL.

I'm actually in the process of installing new power supplies in three systems I built previously, about five years ago, for one of my clients. They all had Seasonic M12-II 620w units (Not to be confused with the S12-II models, although, pretty similar aside from slight platform changes and the M12 being modular) and now all have Corsair RM 550x units installed. Those Seasonic units were five years old so when they get to the age of the warranty that tells me they've reached the level of use where the manufacturer felt it was not prudent to offer any warranty beyond that so I should probably stop trusting it about that same time as well. And for one of my valued clients, I'm certainly going to recommend replacing any unit that has reached the age of it's warranty. It is one of the best ways to protect the rest of your investment and it's never really money poorly spent since they can usually just be moved right into any new system you build or buy.

Try that manual test and see what you come up with. You can also download HWinfo, install it, run "Sensors Only" and uncheck the "Summary" option, while simultaneously running Prime95 (All AVX options disabled) or another intensive stress test or benchmark, and in HWinfo scroll down to the system power readings and take a screenshot, then post it here as follows. Or, do both. This, and that manual test.

How to PROPERLY post images on the Tom's hardware forum​

 

[NerdyComputerGuy]

Is there a lot of dust and dirt inside the PSU? You can see with a torch light on the back vents and the fan vent part, if so, turn off all power and unplug the PSU then use compressed air in the PSU to clean out the dust and dirt, you can find a video on how to do it on YouTube. See if that helps.

 

[Darkbreeze]

Is there a lot of dust and dirt inside the PSU? You can see with a torch light on the back vents and the fan vent part, if so, turn off all power and unplug the PSU then use compressed air in the PSU to clean out the dust and dirt, you can find a video on how to do it on YouTube. See if that helps.

Very first post.

-Checked all hardware/dusted off internal parts. Nothing seems out of place