hardrive not detected on my pc. older machine

August 28, 2011 at 14:06:09
Specs: windows me, 32mb ram 400 mhz pent 2 proc
ok i have an older compaq desktop that has a raid controller that is scsi which has windows me on it. i am trying to add an ide hardrive for xtra space since my current drive is full. no matter how i configure it meaning master or slave half the time it doesnt get read and when it is being read the comp says invalid system disk cause its looking for an os on the ide instead of the scsi drive. it is a en series. the comp is at work not in front of me. i have a pci ultra66 card with me now. will this work to have the ide hardrive read so i can use it for xtra space?

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#1
August 29, 2011 at 08:41:35
Since you say it did have scsi then the boot order would be in bios. The name of how to set it should be in the owners manual. It may say add on card, scsi or may be in two places. One would be the order of devices and the other order of drives.

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#2
August 29, 2011 at 17:48:08
The raid card may show up as a scsi controller in device manager but does it actually have a scsi drive attached to it? If it's a regular IDE then I guess you could attach the second drive to the card.

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#3
August 29, 2011 at 19:46:58
"i have an older compaq desktop that has a raid controller that is scsi "

Go here:
http://partsurfer.hp.com/

Scroll down a bit.

Find the similar label on the outside of the case.
Quote the
- specific model number - at the end of the first line
- the Product Number - p/n - on the third line
..........

You can't physically connect an IDE drive's data cable to an actual SCSI controller - it MUST be a SCSI drive.

However, it may not be an actual SCSI controller. The mboard's bios and Windows recognizes third party EIDE and SATA drive controllers as SCSI devices. Microsoft chose to support those by using long time built in SCSI support, rather than developing separate support for EIDE and SATA drive controllers.
The controller you're calling a SCSI controller must be enabled in the bios Setup - it may not be by default.
If it IS then autodetected while booting ME from another hard drive, you will be asked to provide the drivers for it. A drive connected to it will NOT be recognized until those drivers are installed.

" i have a pci ultra66 card with me now. will this work to have the ide hardrive read so i can use it for xtra space?"

Yes.
If it IS autodetected while booting ME from another hard drive, you will be asked to provide the drivers for it. A drive connected to it will NOT be recognized until those drivers are installed.

However, don't install it in the last PCI slot closest to the center of the mboard - that slot usually shares it's IRQ with the video, and you're likely to have problems with any card installed in that slot unless it's a PCI video card.

If there are two very similar chioces for drivers for a drive controller, one with RAID support, the other without it, usually if the chipset supports RAID, you MUST use the drivers for the model that supports RAID, even if you don't intend on using RAID - Windows won't recognize the controller properly otherwise - the RAID drivers support non-RAID use.

If you want to be able to boot an operating system from a hard drive connected to a drive controller CARD that's detected by Windows as a SCSI device, you must be able to select SCSI in the Boot Order or similar settings in the bios, and SCSI must be listed before any other hard drive.

For older mboards, and older drive controllers, a single drive on a data cable connected to an IDE or EIDE drive controller MUST be set to Master, or Cable Select and be on the END connector of a 3 connector data cable, otherwise the bios of the mboard, or the bios of the third party drive controller, will NOT recognize it, at all.

NOTE that older third party EIDE drive controllers usually DO NOT have a chipset that supports ATAPI specs and therfore they cannot recognize optical (CD or DVD) drives connected to them.

What is the capacity of the IDE hard drive ?
Older drive controllers have a max size limit of 137gb manufacturer's size, which is seen as 128gb (binary size) in Windows.


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