PC not always starting when switched on

[Sparky]

As title my PC has started behaving a bit odd, push power button and nothing happens, tried 2 different psu's and both doing it. Press it a few times and eventually it will power up, any ideas?

MSI x570 Gaming wifi
AMD 5950x
64GB DDR4 pc3600
Tried Corsair and Thermaltake psu's
RTX3070

 

[Minibiker]

As title my PC has started behaving a bit odd, push power button and nothing happens, tried 2 different psu's and both doing it. Press it a few times and eventually it will power up, any ideas?

MSI x570 Gaming wifi
AMD 5950x
64GB DDR4 pc3600
Tried Corsair and Thermaltake psu's
RTX3070

I know it may sound silly but have you tried a different wall socket for PSU?

 

[Sparky]

I know it may sound silly but have you tried a different wall socket for PSU?

I haven't no, will give it a go though

 

[Minibiker]

I haven't no, will give it a go though

Are you using an extension lead or wall sockets?

You added any new components lately?

 

[Sparky]

Using extension lead, i'll go direct to a socket. Only thing was the 64GB ram up from 32

 

[Minibiker]

Using extension lead, i'll go direct to a socket. Only thing was the 64GB ram up from 32

Just check all is seated alright

 

[pallys]

Try a new kettle lead.

 

[FredFlint]

battery on main board needs replacing.

 

[Sparky]

battery on main board needs replacing.

Cmos ?

 

[FredFlint]

Cmos ?

The coin battery on the main board, when my PC did what yours is, I replaced it and it fixed it.

 

[Sparky]

OK hopefully that sorts it

 

[Sparky]

Will replace it tomorrow and let you know, thanks for the suggestions was pulling my hair out

 

[something daft already!!]

You could try resetting BIOS to defaults and see if that helps. Could be related to the RAM upgrade.

 

[mercyless]

If mb have power on switch, disconnect cable from case switch to mb, use mb switch to power up to eliminate the power switch on the case.

 

[Captain_Bosh]

Could be an issue with the case switch maybe. You can buy cheap replacements to test or I think Silverstone do a wireless keyfob one you can install.

 

[Mcnumpty2323]

To rule out the case switch
Just remove the connector from motherboard
And bridge the pins with a screwdriver
It's a momentary switch
So don't need to keep the pins bridged

As others said
Extension leads,the kettle lead,cmos battery ,different wall socket
Are all possibilities too
Mostly free or cheap to test
Before considering it might be a psu problem
Or motherboard problem
Speaking of motherboard
Make sure the 24 pin is fully latched in
Had similar years ago and turned out the board was flexing
Below the 24 pin socket so it wasn't fully inserting

 

[hornetstinger]

As title my PC has started behaving a bit odd, push power button and nothing happens, tried 2 different psu's and both doing it. Press it a few times and eventually it will power up, any ideas?

MSI x570 Gaming wifi
AMD 5950x
64GB DDR4 pc3600
Tried Corsair and Thermaltake psu's
RTX3070

Check power switch cable is in properly. Also for testing, use a reset switch for the power switch terminal, if it still does it then it's not the actual power switch that is faulty.

 

[Sparky]

OK so tried direct into wall socket, new kettle lead, new cmos battery and still doing the same thing. Think maybe its finally dying? Bought when AM4 launched so how long ago was that 5 years?

 

[Minibiker]

OK so tried direct into wall socket, new kettle lead, new cmos battery and still doing the same thing. Think maybe its finally dying? Bought when AM4 launched so how long ago was that 5 years?

Surely not already dying out, My wife still running a AM4 Setup with Ryzen 3600....

Nothings lose on the board like panel connections etc?

 

[Sparky]

Surely not already dying out, My wife still running a AM4 Setup with Ryzen 3600....

Nothings lose on the board like panel connections etc?

I'll pull it apart tomorrow and rebuild it to make sure. Thing is if it was a loose wire or something surely it wouldn't start at all