Computer boot up

I've been having this problem ever since i built my pc. Here is a video showing
what happens.

View My Video

I don't know alot about bios configuration so any help is greatly appreciated!
7 answers Last reply
More about computer boot
  1. I saw a message... no hard disk detected... then it looks like windows starts to boot.... tell us what your problem is.
  2. anonymous1 said:
    I saw a message... no hard disk detected... then it looks like windows starts to boot.... tell us what your problem is.


    I would just like to know how to make it stop saying "No hard disk detected"
    and boot up normally.
  3. Was that two monitors I saw? Are you trying to set up a multi display? Like anonymous1 mentioned, the curious points are the no hard disk message followed by Windows 7 attempting to start.

    My suspect list is:

    1. Failing PSU
    2. Failing HDD
    3. Failing HDD interface

    Without knowing the specs of your system, suggesting places to start would just taking shots in the dark. For what it's worth, you can try our standard troubleshooting checklist. Just follow the link in my signature. If you want more directly related to your problem, you'll need to post your system specs and give details of the problem. We can see the video and assume the problem is the your system doesn't boot, but if you could provide the details, that would make helping you easier.
  4. T_T said:
    Was that two monitors I saw? Are you trying to set up a multi display? Like anonymous1 mentioned, the curious points are the no hard disk message followed by Windows 7 attempting to start.

    My suspect list is:

    1. Failing PSU
    2. Failing HDD
    3. Failing HDD interface

    Without knowing the specs of your system, suggesting places to start would just taking shots in the dark. For what it's worth, you can try our standard troubleshooting checklist. Just follow the link in my signature. If you want more directly related to your problem, you'll need to post your system specs and give details of the problem. We can see the video and assume the problem is the your system doesn't boot, but if you could provide the details, that would make helping you easier.


    It's not the psu, all HDD show up once i'm in windows and they all work. I think it's has something to do within the bios.

    The computer works fine

    ASUS rog extreme z mobo
    i7 2600k
    16gb gskill sniper
    x2 580 gtx
    x2 spinpoint 1tb hdd
    ocz agility 3 120gb ssd
    h80
    silverstone psu 1000w
    corsair 800d
  5. In the BIOS you can set HDD priorites, or disable boot devices altogether, but there isn't any setting that will cause the drives to randomly boot. The reason for my suspect list is that you're having difficulty getting past POST because the boot drive isn't being detected. While everything may be fine once Windows boots, the concern is that booting is intermittent.

    You may want to test the PSU anyway. Just because the output (1000W) is clearly enough, there could be something wrong internally. Testing the PSU with a digital multimeter would be the most ideal way, but you can try reducing the load on the PSU by removing unecessary devices. Start the computer with just the basics:

    1. CPU/HSF
    2. RAM
    3. Boot HDD/SSD (meaning the drive that Win7 is installed on)
    4. 1 GPU
  6. how about the cmos battery?
  7. rhyxn said:
    I've been having this problem ever since i built my pc. Here is a video showing
    what happens.

    View My Video

    I don't know alot about bios configuration so any help is greatly appreciated!



    I am having the same problem with a different machine. It just says "no hard disks detected" one time and then boots to Windows. I've ignored it for a year, but now I'm (finally) upgrading to Windows 7 and I can't boot from the installation disc. I can't access BIOS. No, it's not my keyboard: I pause the screen and am given the option to go to the boot menu or BIOS, I select either one, and then it goes to the "no hard disks detected" screen and boots Windows.

    I have searched these forums and others for hours and have not found a solution, which is interesting, because I've seen this issue a handful of times.

    A790GXM-AD3
    amd athlon ii x4 640
    Hitachi 0F10381 Hard Drive - 500GB
    Corsair 4GB Dual Channel DDR3
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