You won't believe my disgrace. Haha. Have a laugh :
I did the recommended bench test; removed absolutely everything from MB, left only MB, PSU; 1memory stick & monitor to onboard graphics. And placed MB on non conductive surface out of the case.
-Using new corsair tx750w PSU:
CPU fan spins continously but no video to the monitor. No response when trying to shutdown by holding the power button (or shorting the 2 power pins on the MB with a screwdriver). Had to use PSU I/O to shut down
-Using old agiler 800w PSU:
It boots! Normally! (***)
-Then added the gtx260 video card to this setup (old PSU); and failed. Removed nvidia, worked fine. (old PSU)
-Ok; so I tested the Corsair PSU with a second, functional PC. (again: MB out of the case, only ram, cpu and monitor): It works perfectly!. Tested on that system the old PSU: worked perfectly!; added nvidia gtx to that system: worked perfectly with both PSU's.
So as you see problem on the first PC was either of 2 things: MB or CPU. But, using the old PSU, everything worked fine without adding nvidia card. It wouldn't work with nvidia card anymore.
Wait till you read this:
I was tired of this and decided to use this system without the nvidia card, and old PSU, since it was working that way. So I assembled it, put it in the case, etc. (old psu, +1 memory stick + other hardware.) Could use windows, etc, normally. Then I turned it off disconnected and added the 2nd memory stick. Turned on and... PLUM!, a little explosion and a fried electronics smell hahaha.
Checked the back MB and one of those little "streets" i dont know what's their name, those little roads that carry the info from place to place; was broken, near the memory slot. So, MB to the trash can.
Sooo, Bought new mainboard today. Also bought new memory stick.
Following this forum recommendations, placed it over the box, plugged in memory stick, CPU, cpu fan, monitor & PSU. (smile on my face)
Shorted power pins with screwdriver And............... No boot!!!!!!! hahahahahahahahaha.. (should have looked at my face...) just the spinning cpu fan, with no video signal to the monitor. :upset:
New MB; New memory; New PSU.... = F*ng CPU!!!!!!!!
Tested CPU on other compatible PC: No response. CPU Damaged.
That would be the end of my story, but just for your amusement:
Read this, my last disgrace:
There is a 3rd PC in my house, which i opened and took its cpu out to see if its mainboard has same socket so to test the damaged cpu, but it wasn't compatible; so i reinstalled its own cpu. Just removed, had a look, and reinstalled. And............... it doesn't start anymore!!! hahahaaha, no modification whatsoever to this 3rd pc, nothing!, just took out cpu and put it back again. Even bench tested it: MB out of the case, just essentials, and there isn't even a sound, a glimpse of energy, nothing. Hit the power button and nothing, nothing at all, as if it were disconnected from power source. Tried with other PSU's, nothing. it's like completely dead.
hahaha
I'm gonna shot myself.
With your permission.
By the way before I do it: What do you think may have caused this 3rd PC to die completely, if I only took out the cpu and put it back in?, and now there is abslutely no response at all, no spinning fans, nothing. (functional psu's tried)
Thanks, -The soon-to-be-dead guy--
PD. Now I have to buy new CPU for the 1st PC. And I don't know if the damage in this 3rd system is MB or CPU. What do you think. haha