HP Touchsmart 310 DA0NZ2MB6F0 No Boot

[TVMexicana]

Hello all,

I have this computer HP touchsmart 310 with DA0NZ2MB6F0 motherboard. The issue is that it turns on but doesn't do much else. No HP logo on screen, no backlight, no hard drive activity (it turns on), no nothing. Hard drive spins up but does not do much besides spin. No signs of life besides everything going on. I tried resetting with the power button and also tried clearing the CMOS. Anyone have any other advice as to what the issue here could be? I appreciate it, thanks.

[Jesse James]

Re: HP Touchsmart 310 DA0NZ2MB6F0 No Boot

Any video hooked up to external monitor

[Techtiger]

Re: HP Touchsmart 310 DA0NZ2MB6F0 No Boot

disassemble Touchsmart Remove Ram, CPU put back it again,Press and hold the power button for 30 seconds. Reconnect power and try starting the Mob again. If not take Voltage mesurent on the big Gray coils they start from PL13/14 ect try the Schematic

[TVMexicana]

Re: HP Touchsmart 310 DA0NZ2MB6F0 No Boot

Techtiger that was the fix! Thank you. I originally had a missing power rail but after repairing this nothing was happening.

Can you explain to me why this was the fix? What does this method of reset do exactly?