"No Signal" On Monitor When New PC Boots Up!, BRAND NEW MOBO AND CPU!

Discussion in 'General Hardware' started by zaid786, Sep 28, 2006.

  1. zaid786

    zaid786 Geek Trainee

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    Hello, I recently purchased an Asus K8SMX Motherboard, along with a Socket 754 AMD Sempron 2600+ Retail Box. I installed the motherboard, and the CPU like normal, attached all the wires, the PSU, the ram etc and I ran it bare bone at 1st to see if it works. I pressed the power button, it "turned on" but didnt "boot successfully", i.e the monitor kept saying "No Signal" and no beeps are heard. The CPU fan is running while the PC is on and the Green Light on all ASUS motherboards which shows the PC is on is also running.

    Since then I've done the following:

    1) Tried it several times by removing the power cable and trying a different one and generally turning it off and turning it back on, (Also note that i can't use the power button to turn the pc off i have to switch it off directly from the PSU).

    2) Tried a working 512MB Corsair DDR400 ram chip from another PC.

    3) Tried a different known working 450W PSU.

    4) Because the original VGA card was onboard I also tried a known working AGP graphics card.

    5) Tried clearing CMOS by the jumper settings and removing the battery several times.

    6) Tried running barebone i.e just CPU, RAM, PSU, Motherboard, and only Power Switch Wire attached.

    7) Moved the motherboard from outside of the case and running it outside of the box.

    8) Tried both ram slots.

    9) Tried different combo's of known working hardware (i.e AGP graphics card with Corsair RAM, onboard graphics card with Corsair RAM in both slots, the original RAM with the PC with both graphics cards, another old ram chip with both graphics cards.)

    10) Tried a different monitor which didn't work either, (on one monitor i get just the orange light, on another i get no signal..)

    None of these options worked!

    What else is there to try? Both the motherboard and CPU are brand new.

    Specifications:

    Motherboard:

    ASUS K8S-MX

    Specs:
    Genuine Windows is authentic Windows software that is properly licensed and legally installed. Learn more about the special benefits reserved for genuine Windows customers by visiting Genuine Microsoft Software
    CPU

    - Socket 754 for AMDTM 64 processor with built-in MB L2 cache
    - Sempron processor with built-in 256K L2 cache
    - AMD 64 architecture that enables simultaneous 32-bit and 64-bit computing
    Chipset

    SiS 760GX
    SiS 965L
    Front Side Bus

    1600 Mt/s
    Memory

    2 x 184-pin DIMM sockets support max. 2GB DDR 400/333 non-ECC memory
    VGA

    Integrated Mirage2 graphics in SiS760GX chipset
    supports DirectX8.1
    upto 128MB shared video memory
    Expansion Slots

    1 x AGP8X
    1 x PCI Express X1
    2 x PCI
    Storage/RAID

    SiS 965L South Bridge:
    - 2 x Serial ATA, RAID 0, RAID 1
    - 2 x UltraDMA 133
    LAN

    SiS 190/191 MAC + Realtek RTL8201CL 10/100 LAN PHY
    Audio

    ADI AD1888 SoundMAX 6-channel audio Codec
    support S/PDIF out interface
    USB

    Max. 8 USB2.0 ports
    Special Features

    CrashFree BIOS 2
    EZ Flash
    MyLogo
    BIOS

    4Mb Flash ROM, AMI BIOS with enhanced ACPI2.0a, PnP, DMI, Wfm2.0, SM BIOS 2.3
    Back Panel I/O Ports

    1 x Parallel
    1 x Serial
    1 x PS/2 Keyboard
    1 x PS/2 Mouse
    1 x VGA out
    Line In/Line Out/Microphone ports
    1 x RJ45
    4 x USB 2.0/1.1
    Internal I/O Connectors

    - 2 x USB 2.0 connector supports additional 4 USB 2.0 ports
    - CPU / Chassis FAN connectors
    - Chassis Intrusion connector
    - Front Panel Audio connector
    - CD/AUX connector
    - Game/Midi connector
    - SPDIF Out Connector
    - 20-pin ATX Power connector
    - 4-pin ATX 12V Power connector
    Support CD

    Drivers
    ASUS PC Probe
    ASUS LiveUpdate Utility
    Anti-virus software (OEM version)
    Accessories

    User's manual
    2 x Serial ATA cable
    1 x UltraDMA 133/100/66 cable
    1 x FDD cable
    1 x I/O shield
    Form Factor

    MicroATX Form Factor, 9.6"x 7.6"(24.5cm x 19.3cm)

    CPU: AMD Sempron 2600+ Socket 754

    RAM: 1) Corsair Value Select DDR400 512MB (Tried after), 2) Generics DDR333 512MB (With PC)

    Hard Drive: 80Gb Maxtor DiamondMax DM Plus9 ATA133 7200rpm Hard Drive (Not attached while testing)

    CD/DVD Drive: Gigabyte CD-RW Writer/DVD ROM Combo Drive (Not attaching while testing)

    Power Supply Unit: Win Power ATX 450W (used while testing and a different one used while testing)


    Also take a look at the pictures i took below, they might help.
     
  2. Rusty S

    Rusty S Geek Trainee

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    hmm... Possibly DOA harware (motherboard by looks of it) ? Does the motherboard have error lights on it? mine has little LD's that go on when there is a video/ram/CPU error... Those might help...

    Ive had a problem or two myself with DOA hardware.
     
  3. zaid786

    zaid786 Geek Trainee

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    nope no error lites, it has a lite to show its working a green led to show the system is powered on.
     
  4. Rusty S

    Rusty S Geek Trainee

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    k. Im checking into it now... Asus website. I EXTREMELY doubt this, but you didn't forget to plug into the 4 pin power connector?
     
  5. zaid786

    zaid786 Geek Trainee

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    nope i didnt forget that..i've tried alot with this!
     
  6. Rusty S

    Rusty S Geek Trainee

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    k. Can't find mutch that can be done, but try to manually take out the motherboard's BIOS battery. Looks like its on the very bottom right of the board. Leave it out for a while, (30secs) then put it back in. This might work; ive worked with a few BIOS's that didnt reset all their data by just triping the BIOS reset jumper. Had to pull out and and put back the battery... hope this works;)
     
  7. zaid786

    zaid786 Geek Trainee

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    i've done that already, not just for 30 secs but for 10 minz or more like the manual recommends..
     
  8. Rusty S

    Rusty S Geek Trainee

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    sux. Ive got no idea as to what can (reasonably) be done now. Looks like DoA to me. Hopefully you can return it. Sorry :(
     
  9. Karanislove

    Karanislove It's D Grav80 Of Luv

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    Did you disable the onboard at that time??
    If this doesnt work then it means that mobo is DOA......

    That orange light means the same thing....No Signal....

    I think it only means that Mobo is getting power supply but doesnt means that all the circuits are working properly...:confused:
     
  10. zaid786

    zaid786 Geek Trainee

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    how can i disable the onboard graphics card if the monitor doesn't even turn on?
     
  11. Chris_

    Chris_ Excalibur

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    I quickly scanned the things listed that you have tried.

    This problem is very very common to Asus motherboards, It's happened to me twice in 6 months.

    I don't think you have tried taking the RAM out (so all RAM slots are empty), and try powering up.. this should give you a beep code, namely: 1 Looooong, 2 Short.

    That beep code resembles a video card error, but for Asus boards it can also mean motherboard fault.

    My first board (Asus A8N-SLi Premium) was DoA like yours (exactly the same symptons).

    I have been waiting nearly 7 weeks now for my own PC's asus mobo to come back ..

    Good luck!
     
  12. zaid786

    zaid786 Geek Trainee

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    Problem fixed! I just took the CPU out and resat it and put the heatsink back on and it booted perfectly!:chk: :chk: :doh: :D
     
  13. Rusty S

    Rusty S Geek Trainee

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    LOL!!! :chk: :cool: :) nice, dam!
     

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