TechSpot

Problems Booting

By vvuiverine
Sep 15, 2005
  1. After installing a new 2.8 GHZ P4 my computer will not boot. All fans spin but no POST. Another interesting fact is that my CD-ROM will not power up either (works on my old 333mhz system though).

    Reading around I've learned that the problem is either:
    1)mother board
    2)CPU
    3)PSU

    I have tried it with a brand new MB but no success, still no POST. Is it possible that my cheap 425watt PSU will not generate enough power for this new CPU (even though it successfully powered my 2GHZ celeron)?

    Unfortunately, the pins on the older Celeron got bent so I cannot test with this.

    What I have tried so far:
    - reseating all devices (CPU, RAM, etc..)
    - reseting CMOS
    - made sure all jumpers are corectly set
    - removing all devices except CPU and fans (no beep when RAM is removed)
    - brand new mother board
     
  2. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966

    Hello! Welcome to TechSpot

    Man you have done a smart job reading up on this!

    I think I'll take door #3. :bounce:

    Do you have a way to test another psu?
    Or can you straighten the pins out on the celeron?
    You've got x'lnt trouble shooting, just missing a few steps..
    Is the new cpu being installed on the same MoBo as the celeron?

    G'Luck
     
  3. vvuiverine

    vvuiverine TS Rookie Topic Starter

    The only other PSU I've got is a 325watt. I've tried to fix the pins on the Celeron, they're just so damn small.

    Yes, the new CPU has been tried on the same Mother Board as the old Celereon. Also, on a brand new Mother Board.

    Thanks for the quick response!
     
  4. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966

    That they are! As long as they don't break off it can be done but
    that does not help with the current prob.
    What model MoBo?
    If the 350w works it could be useful to rule in or out the other psu.
     
  5. vvuiverine

    vvuiverine TS Rookie Topic Starter

    The mother boards are:
    original board: Intle D845PESV
    new board: DFI NB80-EA

    Looking at the Celeron one of the pins are busted, blows that idea.

    I'll give the other PSU a try.
     
  6. vvuiverine

    vvuiverine TS Rookie Topic Starter

    Tried another PSU and no luck.

    Any ideas?
     
  7. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966

    Oddly enough I just had similar trouble with my
    other system: P4 2.4 celeron, nvidia mx 4000, 512mb ram.
    I swaped three diff psu's and two MoBo's.
    I thought the cpu got fried but turned to be bad ram.
    I got one long post beep.

    Do you have any other ram to test with?
     
  8. vvuiverine

    vvuiverine TS Rookie Topic Starter

    Unfortunately, I do not have any other RAM.

    Perhaps it just time to call Intel and try to RMA the CPU.
     
  9. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966

    That sucks! two bad cpu's.
    Well at least there is RMA..
    G'Luck
    sorry I couldn't help with this one :(
     
  10. vvuiverine

    vvuiverine TS Rookie Topic Starter

    But you did help and its greatly appreciated.
     
  11. Ludwig

    Ludwig TS Rookie Posts: 19


    what is the computer specs that your trying to have? With the 425watt PSU.

    I have very little knowlage about power supply but that much power should be enough.. of course depending on how much hardware you do have installed..

    You should beable to run ROUGHLY "3.0ghz cpu/ 2 sticks of 3200 DDR ram/ 2 Roms/ 2 HDDs/ at least med to a high end video card/ a few fans/ maybe even a good sound card.. not to sure if it can handle anymore then that..

    POST? hmm that one is new to me.. :eek: :eek:
     
  12. vvuiverine

    vvuiverine TS Rookie Topic Starter

    Thanks again for the responses.

    The problem was the motherboard. The P4 installed is a Prescott series and neither MoBo supprted a Prescott.

    Got a new MoBo supporting the P4 Prescott and all is good:)
     
  13. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966

    Thats awesome!
    Now how did that get past us :confused:
    Still stinks the celeron has missing pin.
    Hope you like the new system!
     
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