help troubleshooting a pc

[TechDiligent]

my friend has a alienware pc he said we he plays some games the game freeze his whole computer and shutdown or restarts

i took a look at his pc and cleaned it out add new thermal paste then turned it on for the first time then it made a beep then pause and then beep again it just kept doing that so i turned off the pc and searched up on the internet and it said that beep sequence means a motherboard failure then i looked into the problem and found out if i take out the cpu the beeping stops but obviously i cant use a pc without a cpu so i dont know what is broken the cpu or motherboard

 

(here is what happend to his pc while playing games https://www.youtube.com/watch?v=sJ3yXpY5yoc&feature=share)

[Beowulff83]

31 minutes ago, TechDiligent said:

add new thermal paste then turned it on for the first time then it made a beep

I am assuming you tried to reseat the cpu and heatsink?

[TechDiligent]

3 minutes ago, Beowulff83 said:

I am assuming you tried to reseat the cpu and heatsink?

yes i did try twice

[Beowulff83]

have you tried clearing the cmos?  also try booting with only one ram stick in all the slots and then try another in multiple slots.

[TechDiligent]

2 minutes ago, Beowulff83 said:

have you tried clearing the cmos?  also try booting with only one ram stick in all the slots and then try another in multiple slots.

how do you clear the cmos and i did try the rams stick thing

 

[Beowulff83]

 

7 minutes ago, TechDiligent said:

how do you clear the cmos and i did try the rams stick thing

shut down pc

unplug pc

remove battery from motherboard

wait 5 minutes 

there also may be a cmos clearing jumper cap on the motherboard 

[TechDiligent]

Irked 

20 minutes ago, Beowulff83 said:

 

shut down pc

unplug pc

remove battery from motherboard

wait 5 minutes 

there also may be a cmos clearing jumper cap on the motherboard 

I tried to clear cmos it did not work problem occurred again

[Beowulff83]

Double check all your power connections are seated properly.  

if you have a same generation type of pc you can also swap parts like cpu and such to see if it works on another board.

[TechDiligent]

1 minute ago, Beowulff83 said:

Double check all your power connections are seated properly.  

if you have a same generation type of pc you can also swap parts like cpu and such to see if it works on another board.

Sadly I don’t have any parts to swap with I checked all cables still same problem