Ok guys i am getting trolled hard by this desktop.
HP Pavilion p7-1047c Desktop PC
Has an add-in graphics card - Client brought it in, they tried putting in a low end power supply and that low end gfx card so she could game. Worked for a bit but went down hill.
I get it and it won't turn on nothing.
Did process of elimination tried a new EVGA 400 watt PSU, still nothing. Removed everything connected nothing. So i found a mobo for it. Ordered it.
Installed the new mobo (exact replacement) boots into windows. Runs good for about half a day then locks up. Next i wanted to eliminate anything to do with the OS
So i booted into Gandalf PE same thing, Locks up.
O and i moved ram around tested 1 by 1 in each slot same result.
But here is something else that is odd. If i remove the add-in gfx card and use the on board, it goes into post but right after displays rainbow fuzz all over the screen
This does not happen when connected to the add-in card.
Now i have the system out of the case and testing, its doing the exact same thing. I have taken it down to being out of the case nothing connected except the ram,
24 pin main power and 4 pin connector.
Also to add, i downloaded and put the HP vision diagnostics onto a USB drive to see what would happen. Same thing, never really gets into the interface/program it locks up before that.
I am thinking this desktop has multiple problems with the motherboard being the first issue (which i replaced) and the CPU being bad.
I don't have another CPU to test in this system
What are your guys thoughts. This thing is really doing my head in.