Let me down gently... Its my power supply isn't it?

[Gunni Parker]

Hi all, I've had, what I feel to be a slow build up of issues over the last several months.

It started when my SSD kept notifying me of disk write errors.

From this, I've had notifications of USB port failure.

Lately, over the last month or so, my computer has been crashing a lot! No blue screen of death, just full on stalling, screen going off and then needing to reset.

I have a 750 watt Bronze that I've had for around 8 years I think. How do I know in all certainty its my psu?


My hard drives are coming back healthy on inspection as is my ram from what I can tell.

 

[mickyflinn]

List your pc spec please including make and model of psu.

Any overclock?

 

[Quartz]

It started when my SSD kept notifying me of disk write errors.

I don't think this is indicative of a PSU failure. SSDs wear out. How old is the SSD? Have you checked it with SMART?

 

[Gunni Parker]

Yes I will do. Updated***

9900k oc to 5ghz
2070 super with the occasional oc. I only put it on for certain games.
32gb of ram Corsair RGB 3200 no oc.
My psu I'm sure it's a Cooler master g750m semi mod bronze.
1 TB WD Blue - Smart fine.
512gb WD Black NVME
1 TB Mechanical. I can't remember what model, but its fine.

 

[Gunni Parker]

I have had a look, the model is from 2015 that makes sense to me for when I would have bought it.

 

[Quartz]

9900k oc to 5ghz

If the SSD checks out, drop the PC back to stock settings. No overclock, no XMP.

 

[Grimley]

I have had a look, the model is from 2015 that makes sense to me for when I would have bought it.

Coolermaster make good & bad PSU's. This one is inbetween, cheap & cheerful for want of a better saying. Buy a replacement to be on the safe side, that way there may be no need to replace it again when it's upgrade time.

 

[Minstadave]

Didn't sound typical of a PSU issue.

 

[EsaT]

9900k oc to 5ghz

My psu I'm sure it's a Cooler master g750m semi mod bronze.

With that expensive CPU such cheap PSU should never have been put there in the first place.
That serie was designed by marketing scammers using really cheap capacitors:

The capacitor that is here is provided by CapXon and is rated at 470uF 400v 85C ensuring that most every expense was indeed spared in the selection of this part...

On the downside, we also see that the standard electrolytics are provided by CapXon and JunFu. Moving to the modular PCB, we see that there are yet more standard electrolytics from CapXon and JunFu in a very bad area that will get no real airflow...

The component selection is generally dreadful with capacitors provided by CapXon and JunFu.
https://web.archive.org/web/2016041...g550m_550w_power_supply_review/3#.Vw8aVp3P0YM​

How do I know in all certainty its my psu?

For absolute certainty by using test equipment costing price of many high end gaming PCs.
Don't cheap on in PSU unless everything else is also cheap low end...

 

[Quartz]

From this, I've had notifications of USB port failure.

I've seen this from incorrect Intel driver installation.

 

[Gunni Parker]

With that expensive CPU such cheap PSU should never have been put there in the first place.
That serie was designed by marketing scammers using really cheap capacitors:

The capacitor that is here is provided by CapXon and is rated at 470uF 400v 85C ensuring that most every expense was indeed spared in the selection of this part...​

​

On the downside, we also see that the standard electrolytics are provided by CapXon and JunFu. Moving to the modular PCB, we see that there are yet more standard electrolytics from CapXon and JunFu in a very bad area that will get no real airflow...​

​

The component selection is generally dreadful with capacitors provided by CapXon and JunFu.​

https://web.archive.org/web/2016041...g550m_550w_power_supply_review/3#.Vw8aVp3P0YM​

For absolute certainty by using test equipment costing price of many high end gaming PCs.
Don't cheap on in PSU unless everything else is also cheap low end...

It's the 750* it has good reviews at the time and it wasn't cheap per...

 

[EsaT]

It's the 750* it has good reviews at the time and it wasn't cheap per...

Like norm for any PSU serie, they're all same design/platform down to 450W and hardly any reviews:
http://www.realhardtechx.com/index_archivos/Page364.htm
With half of reviews having been in places doing more lower end PSU reviews.

But CapXon is considered second rate in good day, third tier in average capacitor maker and Jun Fu is pretty much from picked up from trash can category.