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[Solved] Hit the power, the fan moves and no more...

Forum Homebuilt Systems : New System Build - [Solved] Hit the power, the fan moves and no more...

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Best answer from hunter315.

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dstorer   10-20-2009 at 05:42:59 AM

Hello,

Built my first system and when I start it up, the fan tries to turn (like it has an instant of power and then nothing), and nothing else. If I turn the power off & on using the PSU switch on the back of the case, I get a repeat of the same in the previous sentence. Nothing powers on in the system.

System Specs:
Intel DP55WB Motherboard
Intel i5-750 CPU w/Intel Sink & fan
Apevia Java 500W Black Power Supply - Both sockets connected to MB
- Note on PSU: PSU has 2x10 connector, MB has 2x12 header, Intel docs say MB is backwards compatible with 2x10 PSU's.
4GB PNY 1333 DDR3 memory; 2x2GB (in proper slots)
320GB Hitachi 7200RPM HD
Plextor DVD burner
512MB GeForce Video card
Using and old HP Vectra Mid-tower case

I have unconnected and reconnected the PSU conns. a number of times.

I am wondering if the PSU doesn't have the wattage to start 'er up. I would appreciate any insight or ideas to check.

-Dead in the water.

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Best answer from hunter315
Do you have another PSU that you could drop in there to test and see if it will boot? If it cant even spin up the CPU fan without a GPU and a HDD then its likely a bad PSU.
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Silver Home Brew badge hunter315   10-20-2009 at 05:49:12 AM

What GeForce card are you using? the GPU is the biggest power draw in the system. This is the PSU you have correct?
http://www.apevia.com/ProductsInfo.asp?KEY=WIN-500XSPX

 

It would not be sufficient for some of the more power hungry cards but should be sufficient for most, try removing the GPU and see if it will start up, you wont be able to see anything but stuff should spin up and keep spinning.


Message edited by hunter315 on 10-20-2009 at 05:49:46 AM
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dstorer   10-20-2009 at 06:24:08 AM

Thanks for the quick reply, Hunter.

Yes. That's the psu I have in there. The vid card is a BFG Tech GeForce GTS 250. It's a big puppy that is PCI-E x16 and takes up 2 slots. The pn is: bfgegts2505120ce.

Now, taking your advice, I unplugged the vid card. Same. Unplugged the HD power too. Same. I think the psu is bad.

Any thoughts (Thanks so much)?

Reply to dstorer
Silver Home Brew badge hunter315   10-20-2009 at 06:40:29 AM
Best answer

Do you have another PSU that you could drop in there to test and see if it will boot? If it cant even spin up the CPU fan without a GPU and a HDD then its likely a bad PSU.

Reply to hunter315
dstorer   10-20-2009 at 01:01:40 PM

Thanks again Hunter.

I don't have another PSU to test the system. Heck, I just had enough money saved for the components.

Anyways, I'm gonna chalk this one up as a bad PSU. Time to fire up the RMA Machine... I have some more $$ saved, I might as well up the wattage rating for the PSU while I'm at it.

I appreciate the troubleshooting help.

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Silver Home Brew badge shortstuff_mt   10-20-2009 at 05:32:15 PM

I wouldn't replace the PSU until you go through every step in this checklist:

http://www.tomshardware.com/forum/ [...] t-problems

Performing the breadboarding step at the bottom of the checklist will help you eliminate a short as the problem. Your symptoms are commonly caused by a short between the motherboard and case.

Reply to shortstuff_mt
dstorer   10-20-2009 at 06:47:17 PM

You know, that's a good idea. A colleague of mine has molex-SATA power converter cables, so I can use an OLD PSU and see if that does it - then I know it will be the new PSU. I'm kinda suspicious about the 2x10 PSU socket and the 2x12 MB header. The Intel docs said it was backwards compatible, but...

If it's not the PSU, I'll go thru the list and breadboard. I just have to scavenge a speaker from somewhere -hmmmmmmmmmm...

Thanks a bunch guys - I will post my results when I complete the list/breadboard (I'm thinking about doing the breadboard anyways - that also makes alot of sense.

Reply to dstorer
dstorer   10-26-2009 at 12:58:37 PM

Hi All,

Well, I was able to get an old PSU from one of the vanilla boxes @ work and just connected the MB and she fired up w/o issue. I received the long beeps from the MB after firing up, so it appears that the MB & bios is fine. :bounce: (this was similar to the bouncing dance I did once the MB powered up)

So now I am 99.5% certain the PSU is the culprit (at this time). Since the borrowed PSU is 220W, it can't really do much more than power the MB. The PSU is on it's way back to Indiana with an RA# on the box.

I also (in hindsight - my bad) recently calculated all the wattage requirements of the components and it appears that the original PSU is not large enough. Note that I tried just powering the MB with the new PSU and it wouldn't do that either, so I am confident the PSU is the crux to the whole issue.

I also settled for some 'lower' components so I could have a system rather than save a little more $$ and all. That is impatience - no PC words for that one.

'No one can gain wisdom, without making mistakes'

Thanks to all. I may be posting again depending on what else is not right once I get a decent PSU (and go thru the troubleshooting list above)...

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