MrMartyD
New Member
- Joined
- Feb 24, 2021
- Messages
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I think I have a PSU problem but am wondering if anyone has experienced anything similar, or if anyone can shed some light on this before I buy a new unit.
My PC sometimes doesn't turn on when I press the power button, but eventually when it does start it runs perfectly for as long as it's on. Yesterday it was running for 13 hours straight and not a hitch.
This morning I turned it on for 5 minutes and it worked fine, then this afternoon it was dead again. This has been going on for about 2 weeks now.
I've tried booting with just one stick of RAM, no GPU etc, but no good. I've ruled out the power switch, the motherboard is MSI and the BIOS flash button at the back also doesn't power anything up. I'm thinking that rules out the CPU as well seeing as you don't need one installed to flash the BIOS?
I've replaced the CMOS battery, vacuumed and dusted, tried different power sockets and different leads, checked all the connections etc. So it's down to the MOBO or the PSU.
I did the paperclip test on the PSU and nothing happened, so I'm guessing that's where the problem lies. The thing that's bothering me is why is it sometimes working and sometimes not, and when it does work why is it absolutely flawless whether I'm working or doing some heavy gaming? Shouldn't a PSU just die, or cause shut downs?
I'm just curious if anybody else can think of something I may have missed before I buy a new PSU, any pointers greatly appreciated!
Windows 10
MSI Gaming Pro Carbon B450
AMD 3700X
16 GB DDR4 3200 MHZ
Sapphire Pulse Vega 56
Seasonic 750W Snow Silent 80 Platinum
M2 SSD 1TB
Samsung 850 Evo SATA SSD 500 GB
SSD/HDD Hybrid 500 GB
My PC sometimes doesn't turn on when I press the power button, but eventually when it does start it runs perfectly for as long as it's on. Yesterday it was running for 13 hours straight and not a hitch.
This morning I turned it on for 5 minutes and it worked fine, then this afternoon it was dead again. This has been going on for about 2 weeks now.
I've tried booting with just one stick of RAM, no GPU etc, but no good. I've ruled out the power switch, the motherboard is MSI and the BIOS flash button at the back also doesn't power anything up. I'm thinking that rules out the CPU as well seeing as you don't need one installed to flash the BIOS?
I've replaced the CMOS battery, vacuumed and dusted, tried different power sockets and different leads, checked all the connections etc. So it's down to the MOBO or the PSU.
I did the paperclip test on the PSU and nothing happened, so I'm guessing that's where the problem lies. The thing that's bothering me is why is it sometimes working and sometimes not, and when it does work why is it absolutely flawless whether I'm working or doing some heavy gaming? Shouldn't a PSU just die, or cause shut downs?
I'm just curious if anybody else can think of something I may have missed before I buy a new PSU, any pointers greatly appreciated!
Windows 10
MSI Gaming Pro Carbon B450
AMD 3700X
16 GB DDR4 3200 MHZ
Sapphire Pulse Vega 56
Seasonic 750W Snow Silent 80 Platinum
M2 SSD 1TB
Samsung 850 Evo SATA SSD 500 GB
SSD/HDD Hybrid 500 GB