Tom's Hardware > Forum > Motherboards & Memory > MSI-Microstar > MSI K8N Plat SLI PCIE slot not working and not the right speed.

MSI K8N Plat SLI PCIE slot not working and not the right speed.

Forum Motherboards & Memory : MSI-Microstar - MSI K8N Plat SLI PCIE slot not working and not the right speed.

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prinler   02-07-2009 at 06:36:37 AM

Ok so my buddy gave me a mobo that was givin to him. MSI K8n Neo4 Plat Sli

I installed everything to find that when i placed the video card into PCI-e1 nothing happens. I turn on the pc but nothing happens. powers up but no post, no beep error and no post or windows boot.
I checked the SLI jumper board and it is set correctly placed into the NOT SLI setting.
I said what the heck put the video card into PCI-E2 and it posts and runs everything just fine. *shrug* right?

So i downloaded GPUz and it tells me my GTX 280 is only running at x1 and it capable of x16

Can anyone help me out with this? I updated the bios, looked into bios settings to change... nothing...


3800 X2
2GB ddr
1.5TB HD
GTX 280

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Mondoman   02-08-2009 at 05:08:59 AM
- 0 +

Maybe the mobo has a broken 1st x16 slot? According to the MSI web site, the 2nd 16x physical slot is only x1 electrically, so it sounds like yours is working OK. In SLI mode, each of the two x16 physical slots get x8 electrically.


Message edited by Mondoman on 02-08-2009 at 05:12:15 AM
------------------------------ e2160@3GHz: OCing my way to Ubuntuland!
 Reply to Mondoman
cheepstuff   02-08-2009 at 05:27:42 AM
- 0 +

remember, to get the 16x bandwidth, you have to put it in the pci-e16x slot. that is to say, the eeexxxtttrrreeeemmmmeeelllyyy long one. to me it looks like you put it in a plain old pci-e slot.

Reply to cheepstuff
Mondoman   02-08-2009 at 07:19:22 AM
- 0 +

cs - no, he put it in the 2nd x16-sized slot. However, the MB design means that slot only gets x1 connected electrically in "normal" mode, and x8 connected electrically in SLI mode.

------------------------------ e2160@3GHz: OCing my way to Ubuntuland!
 Reply to Mondoman
prinler   02-08-2009 at 10:41:55 PM
- 0 +

So if the first slot is dead? im better off getting a new mobo? Nothing i can do i take it? I know MSI wont fix it for free..

Reply to prinler
Mondoman   02-09-2009 at 02:00:26 AM
- 0 +

Yep, unless you want to use it for something that doesn't need much video, such as an Ubuntu-based server of some sort.

------------------------------ e2160@3GHz: OCing my way to Ubuntuland!
 Reply to Mondoman
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