|"Service Tag number is 1D8Y9K1"|
Entering that Service tag here:
Drivers & Downloads.
Service Tag: 1D8Y9K1
Manuals - English
Owner's manual - view -
System Board Components
There are fout SATA headers on the mboard, SATA0 (15), SATA1 (14), SATA2 (10), SATA3 (9) are listed
Removing and Installing Parts
Your computer supports a combination of these devices:
Up to two serial ATA hard drives
One optional floppy drive or an optional Media Card Reader
Up to two CD or DVD drives
Your computer case has only two internal bays for SATA hard drives and two external bays for CD or DVD (optical) drives.
Your mboard has an IDE data header that up to two IDE drives can be connected to, and four SATA data headers.
However, the bios Setup for your mboard may be set by default to only detect SATA drives that are connected to the SATA0 and SATA1 data headers, since you can only install two SATA hard drives in the available two bays..
You can probably change a setting in the bios Setup somewhere so that a SATA drive connected to the SATA2 or SATA3 data header can be detected as well.
As is usually the situation for brand name system bios versions, there is minimal info about what is seen by you in the bios Setup in the manuals for the model, so I can't tell you specfically what you need to change the setting of.
You could try looking here in the bios Setup:
Displays information about peripherals configuration such as Serial ATA, HD Audio, Onboard nVidia LAN and Onboard LAN boot ROM.
The drive detection for SATA2 and SATA3 should be set to Auto or similar, not None or similar, by the method Auto, or LBA for a hard drive.
By the way, there is no advantage of you using a SATA connected optical drive over an IDE connected one, other than convenience. If the max specs of the optical drive are the same otherwise, the optical drive has the same max data transfer speed whether it is connected via an IDE or SATA connection, e.g. probably 66 mbytes/sec - Ultra DMA mode 4 in Windows - for a DVD burner drive.