my pc doesn't able to detect hard disk and can't enter setup

July 5, 2012 at 17:17:17
Specs: Windows xp, 1gig
hard drive not detected on my pc and cannot enter set up even the primary and slave cannot detect by it

See More: my pc doesnt able to detect hard disk and cant enter setup

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July 5, 2012 at 18:36:55
Your motherboard's bios Setup MUST detect the drive(s).

If it doesn't...
- you don't have the power connector plugged into the drive
- you have a data cable problem (see below)
- you have IDE drives jumpered improperly on the back of the drive(s)
- you are trying to use a SATA II or SATA III drive on a mboard that has a main chipset that supports recognizing only SATA drives with the original SATA specs (150 mbytes/sec max burst speed) - in that case you must install a tiny jumper on the drive to force the bios to recognize it as a drive with the original SATA specs (150 mbytes/sec max burst speed)
- you have bios Setup settings set wrong - loading bios defaults in the bios Setup, saving settings, will probably fix that problem.
- rarely, your desktop power supply has more than one +12 v output section and the part of tha for the drive power connectors has failed - in that case the drives will not spin at any time.

If the bios Setup DOES detect the drives properly, if any of them are SATA drives, 2000 and XP have no built in support for detecting SATA drive controllers and because of that the initial files loaded from the Windows CD may NOT detect SATA drives, depending on a setting in the bios Setup.

What you can do about that...

Installing XP and SATA drive controllers, SATA drives; the SATA drive controller bios settings.
See response 2:

I stated in that....

"The detailed info about how you set the SATA controller mode or similar - it varies
depending on the bios version - is probably in the manual for your mboard model, in the descriptions of settings in the bios.
If you need help with that, you must provide us with the make and model of your mboard."

That's assuming you have a generic desktop system with a retail mboard model in it.

If you have a brand name system, similar applies, but we often cannot find what you see in a brand name system bios version regarding that to refer you to on the web.

Whatever the setting is, when the files initially loaded from the XP CD cannot find SATA drives, it's presently set to SATA or AHCI in the bios, it's changeable, and at least one other choice is an IDE compatible mode of some sort.

In order for you to be able to boot the computer from a bootable CD or DVD, your bios Setup Boot Order or similar list must be set so that CDrom drive or similar is listed before (above) hard drive or similar (it doesn't have to be first in the list) , and BEFORE network boot or similar which is normally listed AFTER hard drive or similar if it's there for most people's uses
or, for some computers,
you can press a stated key while booting the computer when you see a line ""Press xxx for boot device" or similar, and select CDrom drive or similar
- you will then see a line while booting "Press any key to boot from CD" or similar - press the sated key while that line is still on the screen (you usually have 5 seconds to respond)

In a small number of cases, if you have more than one CD or DVD drive, the bios version will only dtect a bootable disk when it's in the first optical drive the bios detects.
Insert the bootable disk in a different optical drive, or go into the bios Setup and find the list of optical drives - the drive you want a bootable disk detected in must be listed first, save bios settings.

It is common to un-intentionally damage IDE data cables, especially while removing them - the 80 wire ones are more likely to be damaged. What usually happens is the cable is ripped at either edge and the wires there are either damaged or severed, often right at a connector or under it's cable clamp there, where it's hard to see - if a wire is severed but it's ends are touching, the connection is intermittent, rather than being reliable.
Another common thing is for the data cable to be separated from the connector contacts a bit after you have removed a cable - there should be no gap between the data cable and the connector - if there is press the cable against the connector to eliminate the gap.
80 wire data cables are also easily damaged at either edge if the cable is sharply creased at a fold in the cable.

Try another data cable if in doubt.

80 wire data cables must have the proper end connector connected to the mboard IDE header - usually that's blue, but in any case it's the one farther from the middle connector on a 3 connector data cable.

Check your SATA data cables. The connector on each end should "latch" into the socket on the drive and on the mboard, or on the drive controller card - it should not move when you merely brush your hand against it near the socket - if it does, mere vibration can cause a poor connection of it - use another SATA data cable that does "latch", or tape the connector in place.
(There is a slight projection or bump on one side of the outside of the connector that "latches" it into the socket - it's easily broken off or damaged)

The same thing applies for the SATA power connection.

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