No Power

By JohnR ยท 11 replies
Nov 16, 2005
  1. I was having trouble with my old cpu, so i upgraded & got myself a amd 64 x2 4400+ & a asus a8n sli deluxe, but as before i cant get anything to come up on the screen, the fans are all running, but i dont get any beeps or anything & nothing comes up on the screen. What am i doing wrong??
  2. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966


    Is this a full install of devices?
    SLI video or single vc?
    What is your psu rating and brand?
    Does your video require it's own power?

    Try a bare bones setup, to get you into the bios setup.
    Check that there is no grounding on MoBo and that you have the
    MoBo stand offs (stand offs separate MoBo from case)
    Reseat the cpu hsf and be sure to use fresh thermal paste.
    CPU, 1x ram, 1x video and keyboard/monitor.
    No cdrom, hdd, sound card, mouse etc., unplugged and no power to
    these items.

    If still unable to get into bios, switch out the ram and video card
    1 at a time to eliminate them as problem.
    If possible check each componant in another system to insure
    they work properly.

    Post back

  3. JohnR

    JohnR TS Rookie Topic Starter

    Its just a new mobo + cpu & ram. I thought it might a psu problem so i bought a new 480w one. i also didnt have a pci-e card so i got a new one. I tried connecting up only the hard drive with the new psu, gfx card & ram, but still nothing. I can hear the hard drive click & start spinning, but then i dont get anything on the monitor or any beeps in fact.I just tried it without the hd & still nothing.

    I then tried connecting the monitor to another pc & it worked fine, i aslo tried using different cables but nothing worked..this is really frustrating as all i want to do is get it running..
  4. mailpup

    mailpup TS Special Forces Posts: 7,182   +469

    So what is your graphics card anyway? Check to see if your graphics card needs a separate connection to your power supply as many higher end ones do. If so, is it plugged in?

    Also, your mobo has an extra power supply connector. Is it connected? It's a 2x2 square white connector.
  5. JohnR

    JohnR TS Rookie Topic Starter

    its a xfx 7800gtx, the new psu came with an outlet for a pci-e, but the gfx card came with a different type, i tried both but neither worked..
  6. mailpup

    mailpup TS Special Forces Posts: 7,182   +469

    When you say neither worked, do you mean the graphics card is not connected to the power supply (except through the mobo slot)? The graphics card should have come with the proper adapter but if not, you can get one. Either way, the extra connector has to be connected for everything to work.

    Don't forget about the extra power supply connector on the mobo.
  7. JohnR

    JohnR TS Rookie Topic Starter

    in the ox that came with the gfx card, the connector was from the card into 2 molex's (i think thats what they're called), i connected them both (the power for the gfx card & from the psu to the board by the gfx card slot. thing is tho, is that i had the exact same problem with my previous mobo & cpu, i thought it was broken so i bought myself a new set but now im having the same problems..
  8. gary_hendricks

    gary_hendricks TS Rookie Posts: 107

    Is your power supply fixed up properly? Things like that occur if you do not connect the PSU to the motherboard properly. Anyway if you can check the beeps on the motherboard too if you need to know what happened.

    There should be some kind of error code list in the motherboard manual. Check that out. It will tell you what is the issue with your AMD and SLI combo.
  9. SOcRatEs

    SOcRatEs TechSpot Paladin Posts: 966

    Is this your board?
    If so this will give us a better idea of whats happening
    with your system.
  10. JohnR

    JohnR TS Rookie Topic Starter

    yes, that is the board, thing is i dont get any beeps when starting up. i tried using the old psu to boot, but i still get the same problem..
  11. JohnR

    JohnR TS Rookie Topic Starter

    I must have tried every way possible, im still not having much luck
  12. peterdiva

    peterdiva TechSpot Ambassador Posts: 1,088

    What hasn't changed from your original setup,and what was the problem that made you think your old cpu was playing up.
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