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Start Up Problems

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Anonymous
a b B Homebuilt system
August 24, 2010 4:16:35 PM

Hello, I am hoping someone can help me figure out what the issue is with my computer.

I recently rebuilt my system, I am running:

MB: P7H55-M-PRO w/Intel i3 Cpu

Memory: 4 gigs Corsair XMS3 4GB PC10666 DDR3 Dual Channel 1333MHz and 2 gigs of Corsair XMS3 2048MB PC10600 DDR3 1333MHz (2x1024)

Graphics Card: Nvida GeForce 8800GTX

1 500 gig Hard Drive
1 60 gig HD

2 case fans

1 CD/DVD Burner Drive

650w Power Supply (Previously used a 450)

Here is my issue...

When I had originally rebuilt the system I used the 450w PSU, plugged everything in and it wouldn't post. I shut it down, then started it again...and it would start, and wind down, and go off....then 2 seconds later it start up...but again, no post. So I figured the 450 PSU wasn't enough power. I unplugged a fan, still nothing, unplugged another fan...same issue....finally, I unplugged the CD drive and it posted and worked fine. I ordered a 650w, replaced the PSU....and guess what....SAME PROBLEM....I am at a loss. I admit the 650w that I ordered is pretty cheap....light and was only 20 bux. I don't know if I should order a more reliable brand. So this is why I am asking for help. Anyone out there that can help me figure this out? Am I missing something? It runs fine ...so long as those fans and the CD drive are not hooked up.

Emma

More about : start problems

a b B Homebuilt system
August 24, 2010 4:37:13 PM

What 450W did you have to start with? What 650W did you replace it with? An i3 and an 8800GTX shouldnt require a ton of power, a good 450W unit or an average 550W unit should be plenty.
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Anonymous
a b B Homebuilt system
August 24, 2010 5:00:29 PM

The 450w is a Thermaltake TR2 RX-450

The 650w is a Blue Star 650w Gamer SATA LED FAN PSU (Made in China) 18.99 bucks on ComputerGeeks.com =/

I know it was cheap...it works...but like I said, same issue.

Thanks for your reply. Any ideas?
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a b B Homebuilt system
August 24, 2010 5:10:14 PM

The 650W unit has 35A on its 12V rail, your old 450W unit had at most 31A on the 12V rail but likely only 29A combined, so your 650W unit isnt much stronger than the old 450W unit. Replacing a low power PSU with a crappy PSU does not help to solve power supply problems, especially one that cheap that likely cannot do that power level for more than a couple seconds. Get a good one from Seasonic, Antec, Corsair or OCZ, that will at least rule out the PSU being Crap as the source of the problems.
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Anonymous
a b B Homebuilt system
August 24, 2010 5:14:36 PM

I just thought of something that totally slipped my mind. I have a card I added to give me an extra IDE connector for my CD drive since I am using 2 HDs. The card seems to work, the drive works fine...however, in the Device manager it shows that there is a PCI Simple Communications Controller, but it has a yellow triangle with the "!" on it. I never bothered to look into it...could this be the problem?
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