Question PC Monitor shuts off randomly or during Benchmarking test - why!

chris_j11

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My Son's Monitor randomly shuts off when performing simple benchmark test
https://gpu.userbenchmark.com/Software
I'm thinking it's the Power Supply - is there a way to verify this or i have to actually install a different (w/more Wattage)
Can someone give me a link for a Power Supply at Amazon.ca , hopefully not to expensive and will just be enough power to not cause problem
OR maybe temp related - since I bought it 2nd hand and it's custom built
PC Spec:
CPU: AMD Ryzen 3 3300X 4-Core Processor
CPU Cooler: DeepCool GAMMAXX 400 V2 (Red)
Motherboard: ASRock B450M Pro4
Memory: Corsair Vengeance DDR4 16GB 3200MHz (2 x 8GB)
Storage: 240GB SSD; 1TB HDD GPU: MSI Radeon RX 580 4GB
Case: DeepCool MATREXX 55
Power: 500W
Fans: upHere (from Amazon)
[url=https://postimages.org/][/URL]
 

Ralston18

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Current PSU: make, model, (wattage, 500 Watts noted), age, condition (original, new, refurbished)?

History of heavy use for gaming, video editing, or even bit-mining?

As for purchasing a new PSU - start here:

https://www.tomshardware.com/reviews/best-psus,4229.html

Use the calculators to determine the computer's power requirements.

Consider additional wattage for times of peak use and future growth.
 
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chris_j11

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Current PSU: make, model, (wattage, 500 Watts noted), age, condition (original, new, refurbished)?

History of heavy use for gaming, video editing, or even bit-mining?

As for purchasing a new PSU - start here:

https://www.tomshardware.com/reviews/best-psus,4229.html

Use the calculators to determine the computer's power requirements.

Consider additional wattage for times of peak use and future growth.
I'll get the PSU model a bit later
my son only use it for games and typical browsing/youtube
 

chris_j11

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i tried a diff monitor w/hdmi
i started the benchmark and after 30sec - the monitor went black for a few secs and then it display the windows logo and we had to log in (possibly it reboot)

Here's my Son's PSU - is this sufficient or need a more watts
[url=https://postimages.org/][/URL]
 

Ralston18

Titan
Moderator
Do use some of the calculators to work out the systems power demands.

Remember that components power demands are often based on ideal circumstances. Likewise PSU's abilities to provide power are also based on ideal circumstances.

If a component lists a power range use the high end wattage value. For GPU's I use the recommended PSU wattage directly. Likely to be a bit high but no harm per se. And, as a rule, I also add in another 25% for extra margin and/or future growth.

Case in point: PSU image has big "500" being shown. And model being RS-500

In smaller print (but at least noticeable) it reads ".....combine power shall not exceed 431.5W*" Asterick referring, I believe, to the lost of warranty....

Overall, as a PSU ages it loses it abilities to respond to sudden and/or peak power demands in any or all of the supplied voltage rails.

A PSU used for gaming, video editing, bit-mining, or anything else requiring constant high wattages is going to reach its designed in EOL (End of life) even sooner.

= = = =

Do you have a multi-meter and know how to use it? Or know someone who does?

FYI:

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158

Not a full test as the PSU is not under load. However, any voltages out of tolerance make the PSU very suspect.

And you can easily find other similar tests.

https://www.techdim.com/test-computer-power-supply/

I believe that the PSU is a likely suspect. However, before going to the effort and expense of installing a new PSU I would try to prove or disprove the PSU being the problem.
 
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chris_j11

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