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Author Topic: Compy Woes  (Read 2467 times)

Offline Mr. Analog

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Compy Woes
« on: February 22, 2006, 10:36:31 PM »
So, okay, I think that hardware hates me sometimes, I ripped apart my old systems (mobo, HDs, power, etc) and put my new hardware in my case, worked fantastic at the LAN and is still kicking along nicely. So I decide to put my old hardware in one of my large ATX server towers (I think Mel and Lazy both have the same kind of case) and now the hardware don' work no mo'

I have rechecked the wiring 3 times (I've done it enough times now to know that it's wired properly). But it won't boot up, here's what I'm doing:

1. Power on, power supply "on" switch
2. Mobo power LED is green, if connected NIC LED lights up (also shows connectivity on router)
3. Hit case power:
----Power supply fan does not move
----CPU fan turns about 3 times
----LED still green
----NIC still green
----No other lights

At this point it just sits there, inert. If a warning code beeped that would be something but not even that happens, so I'm at a loss.

Could it be a short or a grounding problem? I have tried multiple power supplies, cords and wall sockets. I disconnected each drive one at a time, removed the video and NIC to see if the motherboard would throw warnings (it didn't).

So... any ideas?
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Offline Lazybones

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Compy Woes
« Reply #1 on: February 23, 2006, 08:37:26 AM »
If you hadn't tested other PSUs I would have suspected that first.

Have you tried re-seating the RAM?
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Offline Tonnica

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Compy Woes
« Reply #2 on: February 23, 2006, 08:37:51 AM »
A couple guesses:
  • Motherboard grounding issue: there could be a screw that is touching the motherboard (a cause of this can be a loose screw in the bottom of the case that's touching the very bottom of the motherboard)
  • PSU set to 10 when it should be set to 11 (that's one more you see): can't hurt to check what wattage the PSUs you've tried are set to, it could be as simple as that
  • The wall socket/powerbar you're trying to plug it into is faulty and therefore not dishing out enough juice

All things said and done, it seems like either your PSUs aren't dishing out enough juice or not getting enough in. I think I've seen this happen before (in a PSU-is-not-dying-of-natural-causes kind of instance), but I have to remember the exact situation first.
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Offline Mr. Analog

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« Reply #3 on: February 23, 2006, 09:02:34 AM »
I tried both wall sockets.

If there was no ram on the board would it behave as I observed?
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Shayne

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Compy Woes
« Reply #4 on: February 23, 2006, 09:05:19 AM »
Definatly PSU.  Ive had this exact issue.
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Offline Mr. Analog

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« Reply #5 on: February 23, 2006, 09:10:44 AM »
I tried two of them, also one of the power supplies was in use and working 6 days ago.
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Offline Lazybones

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Compy Woes
« Reply #6 on: February 23, 2006, 09:12:03 AM »
Quote from: "Mr. Analog"
I tried both wall sockets.

If there was no ram on the board would it behave as I observed?


Depends on a the board, some would beep.

To get anything up on the screen you need a minimum of PSU, MB, CPU and RAM.
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Offline Shaeleam

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Compy Woes
« Reply #7 on: February 23, 2006, 09:12:18 AM »
if there is no ram on the board it should still give you warning beeps and your fans should run. Specially the one on the PSU...

Have you tried maybe doing a PSU test... I think you can find a walk through on the net that will let you simulate the on-off button by jumping two of the PSU connectors... I think, don't quote me on that, I'd find a way to test your PSU individually first, while checking your mountings on your MOBO etc. If your fans are only turning a couple times it's definately a lack of power issue.
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Offline Melbosa

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Compy Woes
« Reply #8 on: February 23, 2006, 09:19:18 AM »
Hmmmm can be a bunch of things... I would start at basics.  Mobo, Ram, CPU, PSU, Vid.  If you just mounted your mobo in the case, possibility of a screw on the backside grounding it.  Best bet is just go with the 5 above, out of the case, and jumper the power jumper on the mobo with a screw driver to see if it will boot.  And then go from there.
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Offline Lazybones

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Compy Woes
« Reply #9 on: February 23, 2006, 09:19:34 AM »
I would put some ram on the board before doing any more testing..

Beeping, or LED warnings are dependent on the MB maker. As I stated before it does sound like a PSU issue but you also say you tested other PSUs with it.. That would leave me to believe the MB it self has an issue or as Tonica suggested, you have grounted it somewhere, maybe with a loose screw or an incorrectly placed screw riser.
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Offline Mr. Analog

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« Reply #10 on: February 23, 2006, 09:43:45 AM »
It's an ASUS A7V333, I think even if it's not beeping the LED is supposed to turn red or orange (or some other colour).
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Offline Shaeleam

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Compy Woes
« Reply #11 on: February 23, 2006, 11:30:29 AM »
as a sorta unrelated but kinda relavent thing, you can pick up a PSU tester for about $20 from any tech store, handy little tool, will let you know if you've got power on all the right pins etc.

Since you've tested other PSU's though (missed that earlier hehe) most likely a grounding issue, most Asus MOBO's that I have encountered beep if they have no ram.
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Ustauk

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Compy Woes
« Reply #12 on: February 23, 2006, 11:44:56 AM »
Could the motherboard be fried?  I was having a friend upgrade my computer a while back, and the plan was to just replace the CPU, but the board somehow died between the time I last turned it on and the time we placed the new CPU on it.  I got another board, and everything worked fine.  Murphy at his finest, I guess.
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Offline Mr. Analog

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« Reply #13 on: February 23, 2006, 12:17:05 PM »
The more I think about it, the more I'm convinced that the board is just shorting out somewhere.
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Offline Adams

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Compy Woes
« Reply #14 on: February 23, 2006, 04:02:57 PM »
I have that board... if you want it I can give it too ya.

A7V333, right?
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