Wont turn on

[Adam Merton]

I tried to turn my pc on after letting it sit for 3 years power will run for 2 seconds then turn off not even display anything to a screen  i have tried my old motherboard and a spare power supply still the same problem.

have also tried no gpu  only 1 dim of ram 

i would just build a new computer but after the year i have had so far in 2021 i cant and trust me when i say it is beyond bad and when i think it starts to get better another thing happens.

i wish to be able to use my computer again so please any ideas.

windows 7 pro

i7 2600k 

asrock B75 pro3-m

if you think you have had a worse year you have not so pleas don't troll  if you want a bad year i can explain what has happened  but it would take awhile

anyone that has had a hard time remember to fight for yourself and family 

[heli1337]

11 minutes ago, Adam Merton said:

I tried to turn my pc on after letting it sit for 3 years power will run for 2 seconds then turn off not even display anything to a screen  i have tried my old motherboard and a spare power supply still the same problem.

have also tried no gpu  only 1 dim of ram 

i would just build a new computer but after the year i have had so far in 2021 i cant and trust me when i say it is beyond bad and when i think it starts to get better another thing happens.

i wish to be able to use my computer again so please any ideas.

windows 7 pro

i7 2600k 

asrock B75 pro3-m

if you think you have had a worse year you have not so pleas don't troll  if you want a bad year i can explain what has happened  but it would take awhile

anyone that has had a hard time remember to fight for yourself and family 

What PSU do you have?

Maybe there will be problem with it.

[Middcore]

5 minutes ago, Helly Benchmarking said:

What PSU do you have?

Maybe there will be problem with it.

 

OP already said they tried a different PSU, so unless both PSU's are faulty...

 

 

[Robchil]

hardreset bios? .. short the jumper

[Adam Merton]

9 minutes ago, Helly Benchmarking said:

What PSU do you have?

Maybe there will be problem with it.

The psu is rs-750-acaa-e3 

[Adam Merton]

5 minutes ago, Robchil said:

hardreset bios? ..

Can't get anything to even show up with bios

[heli1337]

3 minutes ago, Adam Merton said:

The psu is rs-750-acaa-e3 

I don't think that could be a main reason then, CM is producing well made PSU's.

Try to reset board CMOS.

https://www.manualslib.com/manual/473207/Asrock-B75-Pro3.html?page=31

 

[heli1337]

1 minute ago, Adam Merton said:

Can't get anything to even show up with bios

There is a method called CMOS Reset, where you have to short the jumpers on MOBO to reset your MOBO settings to default.

It's helping in most times, if it won't help something else is broken.

[Middcore]

4 minutes ago, Helly Benchmarking said:

I don't think that could be a main reason then, CM is producing well made PSU's.

Try to reset board CMOS.

https://www.manualslib.com/manual/473207/Asrock-B75-Pro3.html?page=31

 

 

That PSU is over a decade old (about 13 years it looks like) so it wouldn't surprise me if it gave up the ghost regardless of how well made it was originally. However, again, OP said they tried a spare power supply, although I would be interested to hear if that was of the same vintage.