Pc won't boot.

[Marsupilamyh]

I have a huge Problem. My 'old' computer died. It had an asus pq5l-e Mainboard intel q9550 processor a 500W Bequiet PSU, Radeon HD7850 and 4 gigs of ram.

 

The way this computer died was this. It just stopped booting, no flashing LED'S on the mainboard nothing to troubleshout. When powering on the the only thing that happened was that the CPU fan started spinning. I got a friend to lend me a different PSU and because that didn't help i figured either Mainboard or CPU are dead.

 

So i saved up a bunch of money, and bought a Z97 Extreme 4 board and an 4690k proccessor together with 8gb crucial DDR3 Ram.

 

Threw everything together. And now i have the exact same issue with a spinning cpu fan. But no other sign of life. Theres no LED on the mainboard thats on, the switches on the mainboard itself are not lit and the diagnose LED's arent lit.

 

I am devastated now because i spent pretty much all my money on these parts and dont have any money left. I now fear that my PSU is dead and killed my OLD Mainboard and now the NEW one as well.

 

I got my friends psu and tried it with the new board as well but nothing works.

 

Has anyone any idea? Please please please dont let me have thrown out ~400€ that i cant replace =(

 

Edit: Im going to get a multimeter tomorrow and check my PSU and will try a third PSU thats definetly OK (currently running in friends build) I neeeed my PC >.>

[Marsupilamyh]

Im sorry i can't find edit on mobile.

I already did everything suggested in the won't boot sticky switched around monitors and graphiccaeds tried to boot with mainboard cpu and ram alone.

The psu can't be totally dead cause my cpu fan is spinning.

[Goowpea]

I had similar problem something like 3 years ago with one quite old rig. Person who was using it on daily basis tried to plug in the HDD while the PC was running. He fried his HDD and the system wasn't booting up. Only the CPU fan was spinning. Try unplugging the HDD and your optical drives. And when you have new mother board check if you plugged in power supply cabls right. I plugged one too much one day and my PC was overheating in seconds.

[Marsupilamyh]

Well I aalready tried booting with just cup and ram without anything else and still had this problem.

I am also 1000% sure all connections are good because I replugged them all like 20 times in the last 4 hours.

[Goowpea]

You have modular PSU? When you borrowed the PSU from your friend did you use cables from his PSU or from yours?

[Marsupilamyh]

No we both don't have modular psu's.

So no error in the cable.

[JesterFandango]

Are you trying to boot it up on the same case? If that's the case you should try booting it up with another case button

[Goowpea]

Or maybe there's some with power conduction on the case side. Try to assemble all parts outside of it on the MOBO box or something and power it up outside the case.

[rkendall94]

Are you sure all of the power connections are plugged into the motherboard? I'd make sure the 4pin motherboard power is plugged in.  

[Marsupilamyh]

Tried to assemble it out of case the powebutton is connected properly.