Which model hard drive support

1. Jumper settings for model 7245At refer to LINK

2. jumper settings for model 52049h3 refer to LINK

Hope it helps.

This model laptop is installed with an IDE 40Gb hard drive.
You can use a faster hard drive but the BIOS limits the maximum size hard drive you can install.
Check the specification of this laptop for the maximum size hard drive you can install.

Any ATA/IDE 2.5 inch hard drive will do for your laptop. Unfortunately the ATA models have been replaced with SATA hard drives, so it will be difficult to get a new hard drive. Also, expect to pay more per-gigabyte for the old ATA models in comparison to the standard SATA drives.

any external hard drive will work just conect it via usb.

The Maxtor 90913D4 internal 7200 RPM hard drive can be connected via IDE, its a 9.1 GB drive with 512 KB of cache.

Yes, that is the total amount of hard drive space.
This server was built for speed not for storage.

The xSeries 220 server supports four SCSI hard disk drives. The server does not support IDE hard disk drives. Some models support hot-swap hard disk drives and other models support only non-hot-swap hard disk
drives.
Your server supports four 1-inch (26 mm) slim, 3.5-inch SCSI hard disk drives in the hard disk drive bays. You can install four non-hot-swap hard
disk drives in the models that have the standard non-hot-swap drive cage. You can install three hot-swap hard disk drives and one on-hot-swap hard disk drive in the models that come with the hot-swap drive cage. Both the non-hot-swap and hot-swap drive cages hold a maximum of three hard disk drives.

The calculation at that time was 4 drives with 36.7GB storage.
Even if you find the drives somewhere, they will be very pricy.

If you have any more questions, just come back here and leave a comment - I'm happy to help.

you can use other model HDD

These might be it

Here's the chart that lists the jumper settings for all of the various models of Maxtor hard drives:

http://www.seagate.com/images/support/en/us/mxo_ata_jumpers.gif

The first drive above is a DiamondMax 1750, and

the 2nd is a DiamondMax 4320

The IDE version of a 160gb is a:

Seagate Momentus 160GB IDE Laptop Hard Drive
Part Number: 9S1034-506
Model Number: ST9160821A
5400RPM

The SATA version is a:

Seagate Momentus 7200.2 ST9160823AS 2.5-inch 160 GB hard drive