My desktop board is P5NSLI, suddenly when i'm working with it, a lightning splash because its raining, i turned off my computer 'cause i'm worried if what may happened, after the rain i get back to work with it but it never turned on. The light indicator on the board is not working. I check the power supply but it's working too. What will be the problem of my comp.Please help me,it is only 14 months since i purchase mother board.

I think rain doesn't have anything to do, unless you had your printer outside...
Maybe a light interruption could make your station start over without proper settings. Try checking your printer driver and see if it has the proper settings for ribbon and not printing on black dots.

Asus P5NSLI mobo?

http://www.asus.com/Motherboards/Intel_Socket_775/P5NSLI/#specifications

Supposed to have two expansion slots for PCI Express graphics cards.

If the Blue one is used ONLY, it is PCI Express X16

When two -> SLI-Ready <- PCI Express cards are plugged into the Black PCI Express slot, and the Blue PCI Express slot; the Black PCI Express slot operates at x8.

PCI Express x8

The Blue PCI Express slot does also. PCI Express x8.

http://en.wikipedia.org/wiki/PCI_Express

Motherboard User's Manual download page,

http://www.asus.com/Motherboards/Intel_Socket_775/P5NSLI/#download

Scroll the page down using the Right side bar; then scroll down the inner scroll bar to the English version of the manual,

P5N-SLI User Manual for English Edition (E2234)
4.46Mbytes -> 2007.06.12
Click on the blue Global

[PDF file form. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on Global it may take up to 30 seconds, before the first page comes up.

Hover your mouse cursor at the bottom/middle, and the ghosted out navigation guide will appear.
Go all the way to the right, and click on the Adobe PDF icon.
When you hover your mouse cursor over it, Show Adobe Reader toolbar, will briefly appear.

Click on the Zoom In ( + ) icon at the top to Increase the view size; Zoom Out ( - ) icon to decrease ]

1.8.6 Two PCI Express x16 slots -
Page 24 for the PDF file; Page 1-24 for the actual manual page.

So you're stating that one of the PCI Express slots are gone?
Just solder blobs where it should be?
Reply in a Comment.

Both PCI Express expansion slots are gone?

There are still the white PCI expansion slots. Not ANYWHERE as good, but any of them can be used for a PCI graphics card.

Regards,
joecoolvette

Sounds as though you have an exposed electrical connection that's either getting splashed from the tires, or the moisture is creating a temporary disconnection. This can happen, but once it dries it will resume working. I would have your electrical system checked. I would also have your headlight switch checked for a possible short.

Most likely it is the video card.... If it was working fine and all of a sudden it stopped then its usually the video card.. Has there been lightning lately, thunderstorms? That usually burns them.. You could pretty much use any Video card... Let me know if this answers your question and good luck..

Try to look very well your green indicator on *********** board, if it indicates with dim light, you must replace your power supply. "send me feed back with my solution for thisproblem"

u need to downlaod new drivers for the mobo

It seems to me that your motherboard may be on it's way out. Those seem like some of the signs when the MB is in it's death throes.
Or make sure your system isn't dusty or in a moist area. Could be your power supply isn't high enough.
I'm going with motherboard though.

It is either a bad processor or a bad motheroard

Try testing the hardware connections. Often it's as simple as a backwards IDE cable for the hard drives/cdroms, but if that isn't the case, start from nothing. Remove one of the two RAM sticks and all devices, (drives, CD-roms, anything that isn't needed to boot)
Let me know what this turns up.

Is easy for them to say replace the main board,it will cost as much as a new tv or close,they say that because of the damage lighting or power surge causes and is unrepairable,some home owners insurance cover this damages and they just replace the equipment since is not worth repairing.You can call Sony just to see how much they want for a new board.Let Us know if you need any more information.