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Power supply broken?

by Dawnbringer / October 31, 2005 4:28 PM PST

Hi, last week I findally had time to assemble my pc like I did it in school before, to be sure I also checked my mainboard manual, when I press the on/off switch on my power supply on the back of my computer and then I press the powerswitch in front of my case, nothing happends, only the leds are burning, the first time when I did this, I heard the air coming out in the back of my pc, but it went out after 1 min, and now I never getted that again and nothing happends except for the leds burning

My leds are working so I don't think my mainboard is fried and my dad thinks there is something wrong with the power supply, it's 350 watt btw. Anybody got an idea?

De computer
--------------
Amd Sempron 2600+
K8N Neo3 (agr slot+pci-e en pci slots)
512 MB Ram pc 3200 corsair
120 gb hd maxtor
Sapphire Radeon 9600 pro
DvD Writer van Benq

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two known issues
by linkit / October 31, 2005 11:23 PM PST
In reply to: Power supply broken?

Is this your motherboard: MSI K8N Neo3-F ?

If so, there are two problematic areas noted in RED.

RED ITEM ONE:
What is the voltage rating on the memory module (MSI says 2.5V is compatible)?
What voltage setting does the BIOS have for the memory?

RED ITEM TWO:
Although the MSI compatibility list for the AGR slot is probably incomplete, the Sapphire 9600 Pro is not on the list of tested compatible cards.

If you can, I would consider returning that board for one that is known to support your card or has a standard AGP slot. Maybe get a motherboard that has less issues in general.

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Quick checks
by Willy / October 31, 2005 11:53 PM PST
In reply to: Power supply broken?

Remove all HD and CD drives, use only the floppy for now. Have a bootable floppy and upon booting enter the bios and be suree no CD&HD present, save and exit out. Reboot and try to boot from FD. If it actually boots, you have power issues, your psu is too weak or lacking. Further, repelace with a decent namebrand and be at least 400W+ or better. Of course recheck all connections, ect. and teardown to see that no shorts are present, DON'T TAKE ANYTHING for granted. Reseat all cables/harnesses/wiring and be 100% sure that's where it goes. Also, you you see any video display at any time during boot-up, even before the problem came up?

tada -----Willy Happy

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fdd
by Dawnbringer / November 1, 2005 1:39 AM PST
In reply to: Quick checks

I have no fdd, and it doesn't give any power at all, I used a voltmeter and it gave zero's.

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No volts?
by Willy / November 1, 2005 2:44 AM PST
In reply to: fdd

No voltage, then how are the LEDs lit? It seems some of the psu's voltages are kaput, replace. But, please reduce the system as I explained in the previous message. You can always add the devices later. Since, this is a new build, again recheck the work and make sure no standoffs are shorting the mtrbd. backside, etc.. If you checked the psu w/o the mtrbd. attached, understand the psu needs a "load" in order to turn-ON. There are ATX psu simple testers yes/no condition.

tada -----Willy Happy

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Load?
by Dawnbringer / November 1, 2005 2:07 PM PST
In reply to: No volts?

"If you checked the psu w/o the mtrbd. attached, understand the psu needs a "load" in order to turn-ON. There are ATX psu simple testers yes/no condition."


What you mean by this? It needs a load? And how I do that.

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A load
by Willy / November 1, 2005 10:54 PM PST
In reply to: Load?

The psu is a "switching power supply", the load is simply the mtrbd. attached. If you test with no mtrbd. or no load attached, the psu isn't capable to turn-ON. I usggested an ATX type tester as it's safe to use. There is a trick, but I won't do that for a novice, safety issue IMHO. But google for such if you like, up to you.

tada -----Willy Happy

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Quick checks
by Willy / November 1, 2005 12:03 AM PST
In reply to: Power supply broken?

Remove all HD and CD drives, use only the floppy for now. Have a bootable floppy and upon booting enter the bios and be suree no CD&HD present, save and exit out. Reboot and try to boot from FD. If it actually boots, you have power issues, your psu is too weak or lacking. Further, repelace with a decent namebrand and be at least 400W+ or better. Of course recheck all connections, ect. and teardown to see that no shorts are present, DON'T TAKE ANYTHING for granted. Reseat all cables/harnesses/wiring and be 100% sure that's where it goes. Also, you you see any video display at any time during boot-up, even before the problem came up?

tada -----Willy Happy

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(NT) (NT) did u recycle this psu? is it from a reputable brand?
by nerdyboy1234 / November 1, 2005 7:26 AM PST
In reply to: Power supply broken?
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psu?
by Dawnbringer / November 1, 2005 2:02 PM PST

Is psu the same as cpu?
My cpu is given in my first post.

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@Willy
by Dawnbringer / November 1, 2005 2:05 PM PST
In reply to: Power supply broken?

I've tried your tip and it didn't work, my mainboard says also a minimum from 350watt and not 400, (using 350 now).

I'm just going back to the shop saturday, I still have 2 years of warranty.

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