Pc won't boot

[LagoOriginal]

Situation:
 -No Video Signal
 -POST Speaker - No POST
 -All fans spin
 -After some time pc booted with POST (1 beep) and bios failure on screen with restart after, tho after restart same issue occured
 -Pc is older (uses ddr2)

 

Can't find out how to make it run and/or where's the problem

[mMontana]

Can't found any detail of your system in your first post.

[Mr.Nicen]

What did you all ready try?

[personallyimdumb]

13 minutes ago, LagoOriginal said:

Situation:
 -No Video Signal
 -POST Speaker - No POST
 -All fans spin
 -After some time pc booted with POST (1 beep) and bios failure on screen with restart after, tho after restart same issue occured
 -Pc is older (uses ddr2)

 

Can't find out how to make it run and/or where's the problem

check (if its still somewhere out there) what that singular beep means, search your motherboard and beep meanings 

 

Edited August 19, 2023 by callmebrightt
forgot extra detail

[LagoOriginal]

6 minutes ago, Mr.Nicen said:

What did you all ready try?

Unplugged all unnecesary cables (fan power, disk drive etc), CMOS reset throught taking out the battery, Tried booting with one ram stick only, tried starting pc without gpu if i get any Speaker post code (none)

[LagoOriginal]

3 minutes ago, callmebrightt said:

check (if its still somewhere out there) what that singular beep means

 

It's not there, that was one and onky sucessful boot after some time. After that it got silent again. I guess it was post for bios failure, since that was written on screen.

[personallyimdumb]

Just now, LagoOriginal said:

It's not there, that was one and onky sucessful boot after some time. After that it got silent again. I guess it was post for bios failure, since that was written on screen.

hmm wierd sorry 

[LagoOriginal]

26 minutes ago, mMontana said:

Can't found any detail of your system in your first post.

Not sure about all of them since PC is from family member.

Pc was a prebuild (probably)

- 6gb ddr2 ram (2x2gb + 2x1gb) kingston 600mhz i think 

- Athlon cpu

- ~350w power supply 

- Cyclone r5670 1gb gpu

- 250gb sata ssd

[mMontana]

If you can reach any other power supply, I'd try to change that.

Seems waaaaaaay old.

Edited August 19, 2023 by mMontana
refined the grammar.

[LagoOriginal]

9 hours ago, mMontana said:

If you can reach any other power supply, I'd try to change that.

Seems waaaaaaay old.

You might be right, but couldn't i just use multimeter to check if it is working?

[mMontana]

It implies that you know how to jump start an ATX power supply (which is not that difficult but if done in the wrong way could totally fry the PSU), use the multimeter, know pinout of ATX 20/24 pin connector and of the other connectors of the PSU, and have the "gist" to understand if the voltage and amperage are fluctuating, without a oscilloscope.

Get a spare/know working PSU for the time of the test seems to me less knowledge dependent, less time consuming and... less risky.

 

I mean a fast test to understand if the PSU is toasted as I suppose...

[LagoOriginal]

55 minutes ago, mMontana said:

It implies that you know how to jump start an ATX power supply (which is not that difficult but if done in the wrong way could totally fry the PSU), use the multimeter, know pinout of ATX 20/24 pin connector and of the other connectors of the PSU, and have the "gist" to understand if the voltage and amperage are fluctuating, without a oscilloscope.

Get a spare/know working PSU for the time of the test seems to me less knowledge dependent, less time consuming and... less risky.

 

I mean a fast test to understand if the PSU is toasted as I suppose...

I would guess it can't be toasted since all fans spin so there is some power but there can be issue with it. I will try to swap the power supply too if i get to one and let you know.

[LagoOriginal]

11 hours ago, LagoOriginal said:

I would guess it can't be toasted since all fans spin so there is some power but there can be issue with it. I will try to swap the power supply too if i get to one and let you know.

UPDATE:

Apparently the pc works now.

I've just started it after 12~ hours and it booted sucessfully.

 

I guess the issue was shortage of something. Maybe water got there somehow? I don't know. But thanks for any tips you've sent me!