Syylvan

Hi all,
So a couple months back I came home after class, wanting only to jump on my 2 year old computer and relax with some games and music. When I pushed the power button, nothing happened. After repeating this a few times, the screen and lights powered up one last time only to flicker away at the Windows loading screen. So i figured the PSU went out. On my comp I have dual NVIDIA Geforge 7600, Asus A8N-SLI Deluxe mobo, dual Corsair 1024mb DIMM, and the PSU was a 530w Enermax. While my computer was down until I had funds to buy a new PSU, I borrowed an older model Sony from my parents. I ended up putting one of the NVIDIA's and both sticks of RAM on the older Sony, seeing no reason for my high-end hardware to just sit around. And it worked fine (showing no problems with the RAM and that video card).

About two days ago, I bought a Coolermaster 650W, replaced the broken PSU, and then reinserted the RAM and the other video card. Simple I thought. I closed the side panel, picked the case upright, plugged in all the cords, and pressed the power button in anticipation of jumping right back in where I left off. The neons glowed blue, all fans including the ones on the NVIDIA were spinning, and the disk drives could open again - except now my monitor received no input, just a black screen, also my keyboard and mouse lights don't come on. I have tried numerous rewires and have checked to make sure I did not miss any connections - also, the fans spin on the NVIDIAs so I take this to mean they are getting power. I have also tried manually resetting the CMOS jumper while the video cards and RAM were removed, then, once that changed nothing, I reset it again with all the cards attached...still nothing and now I'm completely out of ideas.

I can't figure this out and need help, please!!

Stu_computer

Hi Syylvan, welcome to TSF.

Dimms in slots a1, b1?
red LED on mobo off?
holding down the [Delete] key when pressing start?

How was the pc stored while not in use?

vladimirb

Hello there...
I would clean contacts on RAM modules with rubber and DIMM slots with brush or if you have compressed air that would be awesome...
Also I would clean contacts on graphic card with rubber and clean graphic card slot with brush or compressed air...
if problem still persist, I would try with different graphic card...
if this does not help, I would unplug all components and leave only CPU RAM and graphic card on Motherboard and start PC...
Hope this will help you mate...
report back please...

Syylvan

Stu_computer,
Yep, DIMMs are in slots a1 and b1. No red LED mobo light shows...but a green one does always come on near the CMOS battery, below the NVIDIAs; it glows green even when DIMMs and and graphics cards removed when flipping the PSU switch on (i don't know if it should remain green with them out or not). And no I have never tried holding down the [delete] key when starting up but i'll try once I get home and report back. There is also no POSTed beep at anytime during power up, but I don't exactly remember there ever being one for some reason. While not in use, the PC was kept in my apt with one gpu attached and 2 old RAM sticks from the computer I upgraded with the better computer's hardware while in downtime. About a month ago, the comp was moved to my new house...it was never kept in anything close to a bad condition - other than a possible apt room temperature of 86-90 for a week or two before I moved out.

Thanks for the welcome and the help!



vladimirb,
What kind of rubber do you mean to clean the contacts with and maybe where to get? And I bought compressed air with the new PSU so I have some of that ready to go for the DIMM slots which I'll clean as soon as I leave school. I don't think there should be a problem with the graphics cards not working as I used one of them on the other computer, and it worked wondrously.
Then what should I be looking for?

Thanks for everything guys, hope to hear back soon.

vladimirb

Hello again...
You should clean contacts with rubber-eraser...
After power cut, maybe some components causing problems and system wont boot because maybe some components is in conflict with other [it could happen, yes]
so basically, If you leave only neccesarry components that are required to see display,
if you see POST screen and if you can enter BIOS after that, then some components is causeing problems...
It is just guessing, but it is worth to try ^-^