No POST on s2460

Discussion in 'Tyan' started by J McK, Apr 20, 2004.

  1. J McK

    J McK Guest

    Just acquired a Tiger MP s2460 and two MP1800+ processors.

    Happy happy.

    One 200mhz 128 mb PC1600 SDRAM
    One GeForce2 MX400 (2-4x AGP capable)

    With ZERO other peripherals and only the power switch and PSU 20-pin
    connected, when I power on the PSU, before I hit the switch, all of my
    keyboard LEDs (Num, Caps, Scroll locks) light up. The monitor shows a steady
    signal, full on power light.

    As soon as I power on, PSU fan powers up as do both CPU fans, the keyboard
    lights stay all lit, but the monitor goes to what appears to be standby
    mode, the same as if it were turned on plugged into a computer that is off,
    not as if the cable were unplugged from the graphics adapter. There's a
    separate signal on-screen to let me know it's not connected to a computer.

    I'm afraid to let this sit for more than 10-20 seconds and wait for POST,
    due to the freakiness of i, and I don't want to fry anything if I can get
    away with it. (Or fry further)

    Same thing happens without monitor if I remove the video card and power up
    with the keyboard alone, all lights lit and stay that way.
    Monitor behaves the same if I power on with no keyboard.

    Any ideas, folks?

    J McK, Apr 20, 2004
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  2. J McK

    Mannr Guest

    Leave it on!

    If it is anything like my machine it could take 60sec/GB of RAM.
    During that time it is writing zeros to the ram to prepare for ECC.
    It scared me too...
    Mannr, Apr 20, 2004
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  3. J McK

    J McK Guest

    Leave it on!
    only 128 mb of Ram, though?

    Still scared, but trying it as soon as I power off this machine I'm on ...
    J McK, Apr 20, 2004
  4. J McK

    J McK Guest

    Leave it on!
    No luck. Left it on for 3-5 minutes, everything stayed as is. Keyboard LEDs
    all lit up, monitor receiving no signal, all fans running ok at least and I
    didn't see or smell burning :)
    J McK, Apr 20, 2004
  5. J McK

    Lissy+Peter Guest

    try to do the following:
    remove all cards also grafic card , remove all memory modules
    then switch on and wait a while , after some time , a minute max , the board
    should do some beeps ,
    if not something with motherboard or cpu or powersupply is wrong..
    if it beeps insert 1 memory module and switch on again , the board should do
    after some time some other beeps
    if not , memory module maybe bad
    if yes try to insert grafic adapter , now there should be no beep but you
    should get something on the display

    J McK schrieb in Nachricht ...
    Lissy+Peter, Apr 20, 2004
  6. J McK

    Lissy+Peter Guest

    i forgot:
    try for all test only one cpu get a right result cause maybe one is bad
    Lissy+Peter, Apr 20, 2004
  7. J McK

    Miloman Guest

    Your RAM is registered i hope? Otherwise no POST....
    Miloman, Apr 20, 2004
  8. J McK

    Paul Murphy Guest

    Not only do you need to make sure you've got registered memory, but with
    faster Athlon MPs such as yours you need PC2100 (266 MHz) DDR RAM - if you
    need to buy any, I suggest you stick rigidly to the tyan reccommended memory
    list (on their website) as this board is VERY picky about memory (and PSUs
    for that matter). I'm using original Samsung Memory and an Enhance 460 Watt
    PSU, having had many problems with other brands prior to these. What PSU are
    you using?

    Paul Murphy, Apr 20, 2004
  9. J McK

    c Guest

    Paul, are you by any chance the guy called the Flying Kiwi on the 2CPU

    c, Apr 20, 2004
  10. J McK

    Blaedmon Guest

    Im not sure of the 2460, but is there an agp/vga jumper on the board? Check
    it out. May be as simple as that.
    Also if youve the wrong ram, youd get beeps telling you so I'd imagine.
    Blaedmon, Apr 21, 2004
  11. J McK

    J McK Guest

    Sent TYAN email. They gave me a website with beep code listings, so I can
    know what the beeps specifically mean. No speaker in my case. Hahaha, isn't
    that about a bi**h. Hooked up my HDD led to the PC speaker connector and got
    flash codes instead of beep codes.

    The long and short of it is that I have a faulty memory module. I also now
    have an excuse to buy more memory as 128mb of PC1600 sort of sucked to begin

    Just in case anyone wants it, the site for the beep code decoding is:

    Thanks, all for your help so far, and I'll post you if I can POST and boot
    and all that nonsense :)

    J McK, Apr 21, 2004
  12. J McK

    RS Guest

    I have the exact same thing on a 2462 when I first got it. One of the two
    processors was bad.
    RS, Apr 21, 2004
  13. J McK

    J McK Guest

    Not only do you need to make sure you've got registered memory, but with
    Well, looks like the memory I have, is not what I need. I'm hoping that's
    the only problem. Not sure if it is registered or not, but I know it's only
    200 mhz and I ought to buy some 266 (Will PC2700 clock down to PC2100
    I don't remember offhand the brand of the power supply, think Antec, but not
    sure. I know it supplies 35 amps on the +5v line, more than the 30 amp
    So, off I go to pricewatch/ebay to see about Tyan recommended memory...

    J McK, Apr 21, 2004
  14. J McK

    Miloman Guest

    Also if youve the wrong ram, youd get beeps telling you so I'd imagine.

    Nope. Board does nothing.
    Miloman, Apr 21, 2004
  15. J McK

    J McK Guest

    Aiiieeeee ... I'd like to exhaust all possible other problems first.
    I also threw a T-bird 950 in the board (CPU1 slot, not CPU2), and it did the
    same thing.
    The T-Bird is from the computer I'm posting with, so I know it works, and
    works well.
    J McK, Apr 21, 2004
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