I just built a computer using the Asus M3N-HT mother board and the AMP Phenom 9850 CPU.
My question when I boot up the computer turns off and on abut 8 to 10 times then every thing runs fine each off on sequence last about 2 seconds. If I install new software and I must reboot (warm boot) it does not do the on off thing. HELP

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Mother Board : Asus M3N-HT Deluxe/Mempipe nForce 780a SLI. CPU : AMD Phenom 9850 MEM : 2 GB 800 MHz

As soon as you push the start button it will run 1 to 2 seconds and re start over and over.

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Mother Board : Asus M3N-HT Deluxe/Mempipe nForce 780a SLI. CPU : AMD Phenom 9850 MEM : 2 GB 800 MHz

What OS are you using?

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Intel E4500 Dual Core ~2.2ghz
Radeon 2400PRO ~525Mhz w/ 512mb
Triboot Xp, Vista, and Ubuntu WD 250g

Windows XP with SP 2 added this is a new build system. I just reinstalled my OEM ver of XP every thing is new except DVD writer and case. P/S is new 700 watt.

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Mother Board : Asus M3N-HT Deluxe/Mempipe nForce 780a SLI. CPU : AMD Phenom 9850 MEM : 2 GB 800 MHz

hmm something you can try remove your sound card and try to boot again else try to hold f8 after the first screen to boot in safe mode if that easily works u should try to look around in windows event viewer if it detects any hardware failures

http://www.memtest.org/

Sounds like RAM or Bios problems to me. I think you should try Memtest first to test the ram (will require burning a CD from an ISO image). First, I think you should reseat your RAM.

If the RAM tests clean, see about flashing the BIOS, either from the ASUS cd, or from the network update feature.

Chances are, if your Bios (motherboard) is bad, you won't be able to boot to the cd to test your RAM. (then RMA the mobo)

You could also go minimal to get the system to boot for the memory test (only hook up the CD to the mobo (no hard drive))

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I'm here, you may now make your next two wishes.

Beat Me, Whip Me, Make Me Use Windows!!

Every Piece of Electronic Equipment runs on a finite amount of smoke. The systems are normally very efficient at reclaiming the smoke and recycling it, however, should you do something to let the smoke out, your system will become useless.

SAVE THE SMOKE !!

New PC :
New: Phenom 9500 Quad 2.2, 4gb ram XP Pro 64-bit (Sata 0), XP Pro 32 bit (sata 1), 40 eide HDD (music), Pioneer Blu-Ray Burner, HP Multidisk CD-RW/DVD-Rom, 2x250 Seagate HDD's, ATI Radeon 3870, Asus M3A32-MVP Deluxe WiFi-AP

Old PC:
P4 1.5GHz, 768 Ram, hda-80Gb (80Ubuntu), DVD R/RW

After it finely starts about the 8th try every thing runs as it should. There are no beeps when it turns on / off until the last start up then one beep as it should then every thing is fine.

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Mother Board : Asus M3N-HT Deluxe/Mempipe nForce 780a SLI. CPU : AMD Phenom 9850 MEM : 2 GB 800 MHz

Is it a new PSU you're using?
It might just be a problem with your power pack?
try disconnecting all your CD/DVD ROMS, and any fans that you have.. do you still have the same problem now?

I'd also just make sure that your BIOS battery is inserted the correct way.
I know these are simple little things... but you never know

JAM

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Yes the P/S is new 700 watt. Every thing is except the DVD writer.

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Mother Board : Asus M3N-HT Deluxe/Mempipe nForce 780a SLI. CPU : AMD Phenom 9850 MEM : 2 GB 800 MHz

Hi guys,

This is a known issue with this MOBO and CPU. You need to upgrade the BIOS to resolve. Current working BIOS version is 901.

Cheers,
Mike.

I'd agree a 100%, my IBM mobo was doing the same thing with my 1.6 processor so I had to reinstall the BIOS. Its completely fine now.

Do tell us if it helps