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Power supply upgrade gone bad

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Power supply upgrade gone bad

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elchico08   07-31-2007 at 11:36:01 PM

So i decided to upgrade my power supply after I learned that I had been starving my computer. My problem is that when I turn it on I can't see anything. All the fans are spinning and it sounds like my hard drives are spinning up too. I have that "Extra" power cable plugged into my graphics card too. The POST code my mobo gives me is 25 which means...

 

Early PCI Initialization:
-Enumerate PCI bus number
-Assign memory & I/O resource
-Search for a valid VGA device & VGA BIOS, and put it into C000:0

 

My system has 2 graphics cards. An AGP Radeon 9800 Pro and a PCI nVidia GeForce FX5200. The BIOS is currently set to boot using the PCI graphics card.

 

If anyone knows how I can solve this it would be greatly appreciated.

 


edit: one other thing. The power supply is an Antec Neo HE 550 watt
The mobo connector was a 24 pin when my board (Abit AV8) takes a 20 pin so you snap off the last 4 pins and there is a sticker that says "only use this connector for 24 pin mobos". So for the 4 pin 12V connection I used the separate 4 pin connector did I do this right?


Message edited by elchico08 on 07-31-2007 at 11:38:57 PM
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mike99   08-01-2007 at 12:33:31 AM
- 0 +

What happens if you reconnect the old PSU? If it works, RMA the new one. What is old PSU, who told you it was too low in output? What is system Spec?

Reply to mike99
elchico08   08-01-2007 at 12:38:29 AM
- 0 +

I just reconnected the old one. And i still get the same POST code message. I did one of those power supply calculators and it came out to 406 watts and I had 400 watt cheap rosewill PSU.

 

my system specs are:
- AMD athlon 3500+
- 1 IDE 7,400 RPM HDD
- 1 SATA 7,400 RPM HDD
- AGP Radeon 9800 Pro
- PCI nVidia GeForce FX5200
outputting to three monitors

 

- PCI HDA Mystique 7.1 Sound Card
- PCI Wireless Network Adaptor
- Floppy drive
- DVD-RW drive
- DVD-ROM drive

 

I decided to swap out the old PSU because I have been getting random lock ups and sometimes MACHINE_CHECK_EXCEPTION BSoDs. Sometimes randomly, but they almost always happen when I do anything really CPU intensive like playing a 3D game.


Message edited by elchico08 on 08-01-2007 at 12:41:41 AM
Reply to elchico08
Groveling_Wyrm   08-01-2007 at 02:14:37 AM
- 0 +

That sounds like a graphics card/power issue to me. You may want to set default vid card to your Radeon, as something to try....

As far as the connections, yes, you connected them correctly. The 4-pin that snaps off the 24-pin connector should not be used for the motherboard 4-pin.

------------------------------ I suffer from A.D.O.S.
Attention Deficit..... OOOOOOH!!! SHINY!!!

+5 Victim
 Reply to Groveling_Wyrm
elchico08   08-01-2007 at 03:38:39 AM
- 0 +

how can I set it to defaults if i can't see anything? I already tried resetting the CMOS with the jumper on the mobo.

Reply to elchico08
Groveling_Wyrm   08-01-2007 at 05:42:39 AM
- 0 +

DOH....sorry. I guess my hands got in gear before my brain engaged. LOL.

In that case, I would physically remove the 5200 from the system completely and see if that clears it up.

------------------------------ I suffer from A.D.O.S.
Attention Deficit..... OOOOOOH!!! SHINY!!!

+5 Victim
 Reply to Groveling_Wyrm
elchico08   08-01-2007 at 05:48:55 AM
- 0 +

yeah...I tried that. It didn't work.

Reply to elchico08
Groveling_Wyrm   08-01-2007 at 07:50:21 AM
- 0 +

How about removing the Radeon, and reinstalling the 5200?

------------------------------ I suffer from A.D.O.S.
Attention Deficit..... OOOOOOH!!! SHINY!!!

+5 Victim
 Reply to Groveling_Wyrm
mike99   08-01-2007 at 01:01:40 PM
- 0 +

Remove EVERYTHING except CPU and heatsink. Should give memory error, if not, suspect motherboard most likely. If gives memory error, install one DIMM and see if get video adapter error.

Mike.

Reply to mike99
elchico08   08-01-2007 at 06:33:51 PM
- 0 +

okay, ill try that.

Reply to elchico08
elchico08   08-03-2007 at 02:22:44 AM
- 0 +

yeah...uhhh...im kinda embarrassed as to why it wasnt working. The mouse and keyboard plugs were in the opposite sockets.....

Reply to elchico08
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