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  Computer won't POST, Green Light on motherboard is on. Any help appreciated. 
 
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Jakh Err Apr 14, 2007, 02:55am EDT Reply - Quote - Report Abuse
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Hi,
I have an Asus A8N-SLI Deluxe motherboard and I recently tried installing a XFX GF8800GTS (320mb) video card (my old 6600GT's fan is stuffed and i figured it was time for a proper upgrade). When i tried turning on the computer with it in i heard an high pitched loud noise and immediately pulled out the PSU power plug. After this the computer won't turn on at all with either graphics card installed or with none at all and the green LED on the motherboard is still on.
I'm stuck for ideas and was wondering if anyone could help?
(I was thinking that maybe a fuse on the motherboard was blown but I don't know if the Asus a8n-sli deluxe has any or where they are or how to replace them).
Thank you very much for your help


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mothow Apr 14, 2007, 09:02am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Its hard to say for sure.Your psu might have went bad and killed your mobo.Or the mobo might have just died.What happens when you try to turn on the computer? Also what brand psu do you have?

ASRock Z97 Extreme 4 / i7 4790K / Corsair H80i / 4x4GB Crucial Ballistix Smart Tracer DDR3 1600 / 1TB Western Digital Caviar Black / 240GB Mushkin Chronos Deluxe SSD / 2x Evga GTX 670 FTW 2GB in SLI / Sound Blaster Recon3D Fatal1ty / Corsair HX1000w
TWolfe Apr 14, 2007, 09:43am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Just a thought.

Did you plug in the 6-pin PCIe power plug into the video card?
Because if you don't, thats when you hear that high pitch squealling.

When you have eliminated the impossible, whatever remains, however improbable, must be the truth.
Sir Arthur Conan Doyle
mothow Apr 14, 2007, 11:24am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
TWolfe said:
Just a thought.

Did you plug in the 6-pin PCIe power plug into the video card?
Because if you don't, thats when you hear that high pitch squealling.


Yep i didnt even think of that

ASRock Z97 Extreme 4 / i7 4790K / Corsair H80i / 4x4GB Crucial Ballistix Smart Tracer DDR3 1600 / 1TB Western Digital Caviar Black / 240GB Mushkin Chronos Deluxe SSD / 2x Evga GTX 670 FTW 2GB in SLI / Sound Blaster Recon3D Fatal1ty / Corsair HX1000w
CrAsHnBuRnXp Apr 14, 2007, 11:38am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
TWolfe said:
Just a thought.

Did you plug in the 6-pin PCIe power plug into the video card?
Because if you don't, thats when you hear that high pitch squealling.

This is exactly what I was going to ask you. I made this same mistake when I first bought my 8800GTS because it was my first PCI-e card. It totally slipped my mind that I had to plug in the 6-pin PCIe power plug. Once you do that, your golden. (or at least you should be)

What is your current PSU? Is it enough to handle the 8800GTS?

Jakh Err Apr 16, 2007, 02:03am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Thanks a lot for the suggestions guys,

You're right, i did forget the 6 pin PCI-e connector (my last gfx card didn't even have one)

i had an antec 380w truepower PSU
and i bought a new one 550w truepower 2.0 and I managed to get mostly everything working
(had to change the SLI Selector card to make the drivers install...which makes sense i guess..but i had never used SLI before now and everything worked fine with it in the wrong orientation *shrugs*)

so i guess it killed the old psu (haven't had time to test it in another box to see if it still works)

another problem i can't seem to work out and maybe you guys could shed some light on:
2 of my harddrives don't seem to work (they don't show up in bios or windows or anything, and they don't feel like they're on when i touch them)
which is really weird because one of them is SATA and the other is the only IDE hdd i had, but with the sata ones...the hard drive still runs fine when i use my external enclosure (eSata) ...and i've tried swaping around the molex connectors and the sata ports and the sata power plugs to try to make it work...but nothing seems to make them work which just baffles me as it works fine in the external enclosure and i think the hdd that was originally in the enclosure is having the same problem (they're both Seagate barracuda 7200.10 320gbs) same model number and all. and the IDE hdd is a 7200.7 200gb seagate.

both remaining hdds that seem to have stayed working are western digital SATA drives

I apologize if this is the wrong forum for this post, whatever caused this is probably related to my initial problem so i figured i'd post it here

Gerritt Apr 16, 2007, 02:52am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Jakh,
You mentioned that you are using the ASUS A8N-SLI series MB.
Are you using RAID? If not, turn off RAID on both the NV chipset and SG chipsets, while turning on Both chipsets. I've found that if you turn on RAID0/1 for either, that the other seems to fail.
Plug all of your SATA resources into the Yellow/red/black connectors and you'll be OK.
If you can't, then make sure that you have the most up-to-date firmware for the MB.

Gerritt

Ad Astra Per Aspera
(A rough road leads to the Stars)
We all know what we know, and everyone else knows we are wrong.
System Specifications in BIO
Jakh Err Apr 16, 2007, 03:24am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Thank you very much for the quick reply,
I'm not using RAID at all. (But I did notice that something had changed when my computer boots at the screen that mentions raid and I have no idea why, but it should have tipped me off)
"If not, turn off RAID on both the NV chipset and SG chipsets, while turning on Both chipsets."
how do I do that?
and how risky is updating firmware? I've had issues with updating firmware for other things in the past so I'm somewhat wary of it.

Thanks a lot

Gerritt Apr 18, 2007, 10:32pm EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Updating firmware can be risky.
But changing the BIOS information may require a Battery reset, but other than that, you should be able to recover.
I don't recall the exact BIOS configuration, but I think it's under the On Board Device or Jumper Free sections. Make sure that the Silicon Graphics and NVidia Raid capability are turned off, if you are not using them.

Gerritt

Ad Astra Per Aspera
(A rough road leads to the Stars)
We all know what we know, and everyone else knows we are wrong.
System Specifications in BIO
Jakh Err Apr 20, 2007, 11:12pm EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
I've updated both chipset drivers and the bios to the latest versions and it still doesn't detect the seagate harddrives (except when they're plugged in via eSata in which case it's detected perfectly as if it was attached to sata directly which really confuses me)
I've disabled both the raid options in my bios and i still can't get it to detect the other seagate hdd even though they both seem to be running perfectly aside from the detection issue.

If anyone could shed any more light on this situation I'd be extremely grateful

TWolfe Apr 21, 2007, 01:16pm EDT Reply - Quote - Report Abuse
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Edited: Apr 21, 2007, 01:23pm EDT

 
>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
Try this, in BIOS:

Set IDE Function to All Enabled
NV RAID Config
RAID Enable
1st, 2nd, 3rd, 4th SATA Master=Enabled

Advanced
Silicon SATA Controller=Disabled

EDIT: Black sockets on motherboard are the nVidia hookups.

When you have eliminated the impossible, whatever remains, however improbable, must be the truth.
Sir Arthur Conan Doyle
Jakh Err Apr 22, 2007, 04:20am EDT Reply - Quote - Report Abuse
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>> Re: Computer won't POST, Green Light on motherboard is on. Any help appreciated.
thanks a lot TWolfe, but that just stopped any of my disks being detected, (I'm not running RAID of any kind)


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