Please login or register.
Pages: [1] 2  All   Go Down

Author Topic: MSI Motherboard Schematics/Service Manuals?  (Read 6975 times)

0 Members and 1 Guest are viewing this topic.

lammphil

  • PRIVATE E-2
  • **
  • Offline Offline
  • Posts: 3
MSI Motherboard Schematics/Service Manuals?
« on: 09-June-09, 13:21:11 »

Hello All,

I have a K8N Diamond Plus that I absolutely love, but which has recently stopped POSTing (4 LEDs of the D-bracket remain red -- I've narrowed it down to discrete component on the board someplace).  The board is beyond warrantee, and so I would be very interested in getting my hands on the schematics and/or service manual to diagnose the issue.  Can anyone point me to a source?

Thanks in advance!

Phil
Logged

anDrasch

  • FIRST LIEUTENANT
  • ***
  • Offline Offline
  • Posts: 317
  • oops!!
    • www.msi-forum.de
« Reply #1 on: 09-June-09, 13:42:19 »

Do you read the manual ? --> http://www.msi.com/index.php?func=downloaddetail&type=manual&maincat_no=1&prod_no=232

Four red Diagnostic LEDs could be :
- Processor is defective or not properly installed
- BIOS chip is defective or not properly installed
- CMOS battery defective or empty
- Mainboard / Chipset defective
- Mainboard gets no power from the power-good signal.
This display is also used in elementary mistakes, such as a faulty or inadequate power supply.
Logged

I beg your pardon! I'm afraid my English is a bit rusty.

lammphil

  • PRIVATE E-2
  • **
  • Offline Offline
  • Posts: 3
« Reply #2 on: 09-June-09, 14:56:02 »

Did you read my post?  I'm looking for a schematic &/or service manual for the K8N Diamond Plus, not a regurgitation of what the four LEDs mean.  Thanks!
Logged

anDrasch

  • FIRST LIEUTENANT
  • ***
  • Offline Offline
  • Posts: 317
  • oops!!
    • www.msi-forum.de
« Reply #3 on: 09-June-09, 15:12:27 »

Apologize that I wanted to help, it will not happen again. Good luck! :nono:
Logged

I beg your pardon! I'm afraid my English is a bit rusty.

Ex Forum User 3

  • GENERAL OF THE ARMY
  • *****
  • Offline Offline
  • Posts: 23406
« Reply #4 on: 09-June-09, 15:32:07 »

Forget about getting schematics, MSI will never hand them over.

If you know what component is broken, then I can ask the value, that is not a problem.
Logged

Fredrik

  • GENERAL OF THE ARMY
  • *****
  • Offline Offline
  • Posts: 16126
  • There's always a risk.
« Reply #5 on: 09-June-09, 16:25:22 »

Like andrasch said, four reds mostly imply the processor has a problem: Overheating - check the dust situation, damaged - try in another system, or - what I think - underpowered. You use the word recently. That implies either a wear and tear thing, or an adding to the system.
Logged

lammphil

  • PRIVATE E-2
  • **
  • Offline Offline
  • Posts: 3
« Reply #6 on: 09-June-09, 16:48:06 »

No surprise MSI is unwilling to let go a schematic, I guess.  I'm sure such documentation would fall under MSI "trade secrets" -- can't let any proprietary info out lest they risk losing their competitive advantage. 
Service manuals, however, can be written to hide sensitive information.  There's even a connector (JLPC1) which I suspect is used to help diagnose hardware problems.  *Any* info that MSI would be willing to offer to help me debug this would be useful!

The POST failure is a recent development.  It began intermittently, and became more frequent over time, until finally it wouldn't start at all.  But every time the BIOS managed to initialize, the board ran beautifully in every case.  I've ruled out all but the K8N Diamond Plus itself (via swaps with redundant components on other operating boards), and the fact it runs great once initialized tells me the problem is related to the BIOS.  This problem "feels" like a pull-down, trigger or broken trace someplace.  And I've already used contact cleaner to hopefully ferret out any dust bunnies causing shorts.

I've asked MSI whether they would still service this board out of warrantee.  So far no response.  In the interim, if someone with MB hardware development experience can even throw out a common/probable failure for these boards that causes what I'd described (4 red LEDs), that would be a good start.

I appreciate the offer for parts.  If I manage to identify which one is the problem (w/o a schematic *sigh*), I'll definitely take you up on it!

Thanks, Phil
Logged
Pages: [1] 2  All   Go Up