Early 2009 Mac Pro won't boot to screen

[Msbeezy]

I know...very generic topic but..

This machine has been sitting for over a year without a start...yesterday tried to start..machine fires up..nothing to screen ( cinema display) more importantly and no chime...video card fan spins up..

tried new battery...tried removing 3/4 OWC ram simms..tried NVRAM reset although no keyboard access.

Still no chime.any input appreciated

 

[h9826790]

I know...very generic topic but..

This machine has been sitting for over a year without a start...yesterday tried to start..machine fires up..nothing to screen ( cinema display) more importantly and no chime...video card fan spins up..

tried new battery...tried removing 3/4 OWC ram simms..tried NVRAM reset although no keyboard access.

Still no chime.any input appreciated

Possible CPU tray or logic board, and it's hard to diagnosis without spare parts to test.

 

[now i see it]

Get a Snow Leopard disk and try to boot from that.

 

[Msbeezy]

I do have one..what's the reasoning ?
[doublepost=1486327888][/doublepost]

Possible CPU tray or logic board, and it's hard to diagnosis without spare parts to test.

Just from sitting ?...maybe I should have unplugged it ?

 

[orph]

what gpu is it?
what version of osx?

might be worth doing SMC reset by unplugging the power cord for 15secs +
https://support.apple.com/en-gb/HT201295

then pram reset
https://support.apple.com/en-gb/HT204063

also worth doing a boot holding 'alt' to see if there's a valid boot drive (maybe the HD is dead)

also is some time's it's something simple is the display cable in correct, try a different video out from the gpu or different display cable if you have a spare.

edit
also might be worth pulling out then re-inserting the HD's for luck