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No Beep, No LED Read-out just - -

This began over the Thanksgiving holidays, 07. My computer would not boot to the BIOS. After stripping everything down to only the CPU and mobo, I assumed it was the mobo. I sent it back and it was found faulty. After I got a replacement board, it did the same thing. I sent back the CPU and it was found faulty as well. After I got a replacement CPU, it did the same thing. I went and bought a new PSU and it did the same thing.

I now have another RMA with the mobo supplier, but they swear they tested the replacement board before it went out. So, before I send this board back, I thought I'd get some advice here. Below are my specs.

Mobo: Nvidia 590 AM2, SLI, MCP, ATX, AMD
CPU: AMD Athlon 64 X2 6000+ Windsor 3.0 Ghz, Socket AM2
PSU: Rosewill RP 550V2-S-SL, SLI ready
MEM: Corsair XMS2, DDR2 800, PC 6400, 1GB x4


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  • 3 more comments 
  • Pythium Feb 25, 2008

    No. The computer will not work at all and can not even get to the BIOS. And, I've reset the CMOS and removed/reinserted the battery.

    Yeah, this problem has perplexed every computer repair shop within a 50 mile radius. They also can't test the board being it's a 4+4 pin ATX. However, I've heard that mobo's are sometimes sent around on a continuous cycle (Conspiracy Theory). But the supplier insisted that it was tested before it went out. I've finally talked to a traveling computer repairman and I hope to hook up with him in the next couple of days to see if he can test the mobo and CPU. I really want to get this info before I send the mobo back and look like an idiot :). Thanks for the reply!

  • Pythium Feb 25, 2008

    When on the phone with the mobo supplier, they had me take it out of the case for the very same reason. Since then, i've left it out of the case to continue to run tests. The only thing I haven't tried is different/ new RAM. However, for 4 sticks to go bad at once would be extremely rare and I would think if the RAM was bad I'd get some kinda of POST error code or beep. I get neither.

    Tks again.

  • Pythium Feb 25, 2008

    Haven't tried the VOM yet, but I ruled out the PSU when I tried a new one. Yes, all fans and lights on the mobo coming on but - - on the LED and no beeps. I may try a VOM (assuming you're meaning Voltage Meter) tonight. I guess either the mobo manual or PSU manual would list the correct voltages i should receive.

  • Pythium Feb 25, 2008

    Oh..and yes. I've tried all configurations possible with the RAM. With all the reading i've done, on this board and others, it's got to be the mobo, if not the CPU. The main reason I'm ruling the CPU out is of these (3) things.

    1. The new CPU came in a retail package. It looks and smells new.

    2. The mobo came packaged as an OEM part. Yes it may be new, but it didn't make me feel all warm a fuzzy like the CPU did.
    3. They are no longer making the 590 board. Suspicions arise with that as well.

  • Pythium Mar 12, 2008

    Update...The 2nd mobo was bad too. The customer support rep. said that the 2nd board was good when it left their shop; true and tested, and that it must be either something I'm doing or one of my hardware components is destroying the board. I had my PSU tested and it was ok, so what the heck are they saying. The only other conclusions I could think of were:

    1. The CPU was bad too; therefore it did something to the board.
    2. The RAM is bad, therefore it damaged the board. (mentioned by their customer support)
    3. Static electricity?

    Granted, these are far fetched conclusions, but I don't want to damage the next board they send me if it is.



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Sounds like you have pretty much covered about everything. Are you saying that the system works OK, except when you try to get to BIOS, or is it not working at all?

If you are just having trouble getting into BIOS, there is the possibility that something is wrong with the F key that you use to access BIOS. Might try a different keyboard if this is the case.

I know that this is kind of a stretch, but haven't been able to think of anything else, yet.


Posted on Feb 25, 2008

  • 1 more comment 
  • Ron Roske Feb 25, 2008

    Strange one, huh?
    Did have one other thought. Is there any chance that the MoBoard might be shorting out on a screw or on the case? Have had this happen to me due to improper reassembly and/or missing insulation on bottom of the board.
    Another possibility is a bent pin on CPU, but assume you have checked for that.
    With only the PSU, CPU & board installed, it should do something at least.

  • Ron Roske Feb 25, 2008

    Agreed that one wouldn't think that 4 sticks would go bad at the same time. Have you tried bringing it up with only 1 stick of memory? Then try to bring it up with a different stick? Is it safe to presume that the fan(s) come on when it is powered up? Have you been able to use a VOM to check the voltages from the PSU to the board to verify that they are there and correct?
    Any lights or LEDs coming on?

    I know that these suggestions are pretty basic, but we're starting to run short out of ideas.

  • Ron Roske Feb 25, 2008

    Sorry 'bout that! Yes, VOM means volt ohm meter. And, yes, the manuals for either (or both) should give you the numbers.



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