ASUS M4N68T M V2 Motherboard am3 PCI-EX16

May 3, 2011 at 18:31:59
Specs: Windows 7, Phen II 840/4GB 13333
I have been having problems getting GForce graphic cards to work on this mobo. I took a working GF 8500gt 512mb from another computer--no dice. I dropped an old GF 8800 gso 384mb in from another computer and nothing but black screen after posting. Is there something that I am not doing to enable these cards? Or do I simply have a bad slot/mobo? Help!!!

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#1
May 3, 2011 at 20:42:14
ATX mboards are always being powered in some places, including some of the contacts in the PCI-E X16 slot, even when the computer is NOT running, as long as the power supply is receiving live AC power.
Did you UNPLUG the computer, or otherwise switch off the AC power to the computer, at ALL times when you were plugging in and unplugging graphics cards ?
If you didn't, you may have damaged the PCI-E X16 slot circuits or the graphics cards or both.

Does the onboard video work fine when you DO NOT have a graphics card installed in the PCI-E X16 slot ?

If it doesn't, you probably have some other problem.
.....

WHEN are you getting no video ?

Are you getting no video at all from a port on the graphics card while booting even BEFORE Windows is supposed to load ?,

OR - you ARE getting video BEFORE Windows is supposed to load, but NOT after Windows is supposed to load ?

(The latter is easy to fix, if there's nothing else wrong.)
....

What total (output) capacity does the power supply have ?

Minimum recommended power supply capacity for a system with one of these video chipsets on the card in the PCI-E X16 slot:

Geforce 8500 GT- 300 watts

Geforce 8800 GS- 400 watts

Geforce 8800 GTS or GTX - 450 watts

If the graphics card has one or two power sockets on it, you MUST connect a suitable connector from the power supply to that / those that fills the socket.
........

For when you're using the onboard video with no graphics card installed, and for when you are using a graphics card installed in the PCI-E X16 slot.......

Are you hearing the usual one short beep from the mboard while booting ?

OR - are you hearing no beep at all, or a pattern of beeps ?

If you hear a pattern of beeps, describe that e.g. number of them, short, long, do they stop or are they continuous.

Do the Power and Hard drive activity leds light up ?

Do you hear the fans and hard drive(s) spinning ?
.......

"Is there something that I am not doing to enable these cards?"

Installing a working PCI-E X16 card in a working PCI-E X16 slot on a mboard there is nothing wrong with automatically disables the onboard video on your mboard.

The video chipset on the card, the mboard, and Windows all support the video chipset on the card (or the onboard video) producing basic video . You should always get video from the card while booting at least BEFORE Windows is supposed to load, if your power supply has at least the minimum recommended wattage capacity.

If your onboard video adapter is damaged - does not work when there is no card in the PCI-E X16 slot - even if there is nothing else wrong, when you install a card in the PCI-E X16 slot, the bios may NOT automically enable the video on the card in the slot.


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#2
May 4, 2011 at 06:14:47
"nothing but black screen after posting"

Does that mean the POST screen is being displayed & THEN the screen goes black?


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#3
May 10, 2011 at 16:11:22
Your response was very helpful in getting me to check-out some things. I determined that the one beep was the PIC/APIC which is a motherboard problem as far as I understand. I recently ordered a Bulldozer compatible mobo and will return the one I have tomorrow.

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#4
May 11, 2011 at 20:15:54
Are you hearing the usual one short beep from the mboard while booting ?

There's nothing wrong indicated by that - it indicates the bios completed the POST (Power On Self Test) successfully. You SHOULD hear that.

There's no such thing as
- APCI - it's ACPI - Adanced Control Power Interface.
- PIC - it's PCI

You haven't answered any of our other questions.


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