At the end of my rope... PC turns on, off, immediately back on and stays on...

[sktittles]

Can anyone help me?

Problem: At the end of my rope... PC turns on, off, immediately back on and stays on... nothing shows on screen.

What do you need to know to help me before I throw this thing in to the wall and set it on fire!

 

[Martell1977]

PC specs and any recent changes made would be helpful. (i.e. make and model of motherboard, CPU, GPU, PSU, RAM)

 

[sktittles]

PC specs and any recent changes made would be helpful. (i.e. make and model of motherboard, CPU, GPU, PSU, RAM)

Just built it.

Mobo - Asus p8z77-v pro
CPU - 3770s
Ram - G.Skill Ares 1600 Mhz DDR3
CPU cooler : NH-D14
No GPU
PSU: 500w Gigabyte 80+ certified white

 

[sktittles]

Anyone? Come on...

Cleared CMOS battery, Removed all RAM, tried every stick individually in the first blue slot, still happened, re-seated cables and heatsink. What the hell is the problem?

Removed all RAM, speaker makes a long beep followed by 2 shorted beeps... kinda like beeeeeeeeeeeeeeeeep....beep.beep
If i put ram back in no more beeping. motherboard is outside of case, tried 2 different PSU's (working PSU's), is it the motherboard? or the CPU? HELP please....

 

[sktittles]

Anyone got any ideas?

 

[Martell1977]

Sorry for the delayed response. Do you have a GPU you can try and see if that changes anything?

Do you at least get the BIOS splash screen? Can you enter the BIOS? Do you get any display at any point?

When the computer "stays on", is it booting? I mean is the hard drive active? If it does seem to be booting, but no display, maybe try to time it out and see if you can get it to safe mode by hitting F8 early on and just let it go into it. If you can get it there, do you get any display then?

 

[spat55]

I reckon PSU. Always have a spare to test with imo.