Tyan Thunder K8HM (S3892G3NR) Dual Opteron/V&3L/RAID Server Motherboard (S3892G3NR (THUNDER K8HM)) Logo

Question about Tyan Thunder K8HM (S3892G3NR) Dual Opteron/V&3L/RAID Server Motherboard (S3892G3NR (THUNDER K8HM))

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Tyan Thunder K8HM no POST

New Tyan Thunder K8HM, will not POST. Removed second CPU from socket 2 (along with associated memory), still will not post. Memory is correct for MOBO (PC2100, registered, two 1GB matched sticks), and is installed in the correct slots per the manual. This board has built-in VGA, but the initial POST beep does not occur (nor does any other beeping), and there is no video output (monitor stays in power-save mode). Have swapped memory with 3 other matched pairs, to no effect.

Posted by Adam Fugman on

  • Adam Fugman Jul 11, 2007

    Turned out to have been a bad board.

    Replaced the board, and the new one came up immediately and worked.



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It sounds like you?re an experienced hardware guy so I won?t bore you with the basics. When I?ve gotten stuck on a new motherboard no-booting problem these steps have helped me: -Make this as basic a machine as possible. You don?t need much of anything to get the POST to display and anything else just adds more variables. -double check the processor and memory, ensure they are correct for the board. Make sure the manual is the correct one for your board. -Try setting the BIOS to the manufacturers ?Safe? settings or default settings. You might even want to pull the backup battery out, unplug the power supply and let it set for 30 minutes to void the BIOS settings. -Verify the power supply is working correctly, preferably with a power supply tester. If you can?t then try putting this power supply in another computer to make sure it not only turns fans on but really supplies the correct voltage needed to make things work. -Buy or borrow a pre-boot test card. This is a diagnostic card that plugs into a PCI slot of your PC and will give you a much better diagnosis of what is going on. You can usually pick one up for about $35. - Make sure your CPU fan is plugged into the right motherboard connector, the newer boards will check for the CPU fan. I would suspect that if this were the case you would see something on the screen but you never know. Last but not least you might actually have a defective board. Granted it doesn?t happen too often but I?ve had two or three dead out of the box over the past few years. Chances are if you?ve gone thorough all of this and relate the steps to Tyan support they will send you a replacement. And if the new board does the same thing then you only have two remaining variables left; CPU and memory. Good luck and if you have any other questions please let us know.

Posted on Jul 11, 2007


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No video at all

try first with one cpu and only one stick of memory in socket zero

if the video does not come on... try next to reset the bios .. clear the settings... it may be setup to search for a pci or pci-e video card in the bios

next try to test the wattage being pulled into the system at boot... should be over 200watts.. may indicate a power issure

are there any beep codes ... post codes or ... is there a single beep tone during power on to verify the motherboard is functional and checks out fine at self start...

[email protected]

Manual to tyan s239001


Try This link to Tyan Archive Files.
I think your board will be here.
Trinity KT Manual under Socket 462/A ( AMD Athlon/MP/Duron )

Mike @ Compurepair.

Flashed the BIOs to Version 2.02 now it only powers on

Yes could be the problem. Flashing bios is always!! a risky business. Best you can do is check all the connections, ie reseat all cards and memory. If that doesn't work looks like new motherboard time unless you can get a new CMOS chip to fit the board.
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