There is Me
HP Support > Pavilion a6130n Desktop PC > Main Support page,http://h10025.www1.hp.com/ewfrf/wc/product?product=3436817&lc=en&cc=us&dlc=en&lang=en&cc=us
How to > Adding / Replacing hardware > Opening the PC Case,http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00968217&tmp_task=useCategory&cc=us&dlc=en&lang=en&lc=en&product=3436817
Back page; Adding / Replacing hardware > Removing the Front Cover,http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00968624&tmp_task=useCategory&cc=us&dlc=en&lang=en&lc=en&product=3436817
Back page; Adding / Replacing hardware > Adding or Replacing a CD or DVD Drive,http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00981303&tmp_task=useCategory&cc=us&dlc=en&lang=en&lc=en&product=3436817
This is an example of a SATA data cable,http://en.wikipedia.org/wiki/File:SATA_ports.jpg
Note the L-shape inside the cable's connector.
It also shows a SATA connector for the motherboard.
Note the L-shape on the connector. The optical drive (CD/DVD drive) also has this L-shape on it's connector.
(SATA connectors on the motherboard come in various colors. Color signifies what SATA connector it may be. SATA0, or SATA1, or SATA2, etc.)
Between a SATA data cable's connector, and a SATA power cable's connector, the SATA power cable connector is the larger of the two.
SATA data cable connector has 7-pins. (Contact pins)
SATA power cable has 15-pins. (Contact pins)
Example of a SATA power cable,http://www.playtool.com/pages/psuconnectors/connectors.html#sata
A SATA data cable connector, and a SATA power cable connector, may have a small 'bump' on them, that you depress with your thumb, when installing the cable, or removing. The 'bump' is a Lock.
Usually the cable end going to a harddrive, or an optical drive; will be a 90 degree Elbow.
The straight end connector plugs into the motherboard.
A Top View look at the motherboard in your computer,
HP Support main page > Product information > Product specifications > Motherboard specifications, MCP61PM-HM (Nettle2),http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01077676&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3436817
View shown has NO hardware on the motherboard.
(Processor, Ram Memory, etc)
The long Blue, and Black slots, with the White Lock 'ears', are Ram Memory slots.
The SATA connectors on the motherboard, are to the bottom/right corner, of the Number 3 and Number 4 ram memory slots. (Blue)
Yellow, Blue, White, and Black.
Scroll down, and click on the + sign to the left of the blue -
Using this illustration you can see;
Yellow SATA connector is SATA4 <-
Blue SATA connector is SATA3
White SATA connector is SATA2
Black SATA connector is SATA1
Due to standards set by JEDEC, and generally followed by all; the harddrive is plugged into SATA1.
HOWEVER, you can plug your optical drive, or drives, or harddrive, or harddrives; into ANY SATA connector on the motherboard that you want to.
The beauty of SATA is that BIOS will find the drive, NO matter what SATA connector on the motherboard you plug into.
Harddrive, or optical drive.
For clarification on anything I have stated above, or for additional questions; please post in a Comment.