Couple questions...

[Gabis1207]

I connected my laptop to the television via VGA (the double-ended blue-tipped cable with two screws on each end) before I found the hdmi cable laying around.
When the laptop was connected, it worked just fine, but not when the desktop was connected.

As far as a different monitor/television goes, no I have not tried another television.

 

[Drogos]

+1 on the evga good price to

 

[Gabis1207]

Have you tried a different monitor / different input? (DVI)

But I have to also agree about the PSU... I personally go with about 100-150 watts OVER specs, so I have some wiggle room.

Newegg.com - EVGA 500 B 80 PLUS BRONZE Certified 500W Active PFC ATX12V v2.31/EPS 12V v2.91 3 Year Warranty 100-B1-0500-KR Power Supply

+1 on the evga good price to

The EVGA PSU is the same rating as the Diablotek on amazon I linked to earlier, but roughly $30 more.
Is the EVGA worth the extra money?

 

[Drogos]

it is really up to you. evga is a very good brand i never used their psu but i had their video cards and never had a problem. i personally don't trust that $20 psu for long time use on ur rig.
but hey u never know it might work just fine for u.

 

[Gabis1207]

Thank you both for your help. I'll look for a beefed up PSU. In the mean time, I'll definitely check the system on another monitor/television, just in case. I really hope that this is the problem I'm having, and if it isn't, I'll be sure to make another post for further assistance.

Again, thank you both for your help.

 

[Drogos]

your welcome i hope work out.

 

[Nukem]

evga is excellent for the support they offer. If something went wrong and you had to RMA the PSU; you would find very little issues or problems in doing so. I can't say the same with Diablotek.

 

[Joe C]

The EVGA is 80+ Bronze and the Diablotek is not
EVGA has 40 amps on the +12v
Diablotek has 17

You get what you pay for and that EVGA has some decent bang for the buck

 

[Gabis1207]

I'm going to microcenter again tomorrow to have my motherboard tested and pick up a new PSU.
Just to check, this is the same EVGA that Nukem suggested earlier, correct?

EVGA 500 Watt Power supply

 

[Nukem]

yep