User`s manual

4
Connecting the Audio Ports (AC’97 and HDA)
There is an Intel® standard 10-pin AC’97 connector and an Intel® 10-pin HDA
(High Definition Audio) connector. You can connect either the AC’97 or the HDA
connector, but not both at once, to your motherboard depending on the spec of
the motherboard.
Pin Assignment for Audio Ports (HDA and AC’97)
Pin
Signal Names
(HDA)
Pin
Signal Names
(AC’97)
1 MIC2 L 1 MIC In
2 AGND 2 GND
3 MIC2 R 3 MIC Power
4 AVCC 4 NC
5 FRO-R 5 Line Out (R)
6 MIC2_JD 6 Line Out (R)
7 F_IO_SEN 7 NC
8 Key (no pin) 8 Key (no pin)
9 FRO-L 9 Line Out (L)
10 LINE2_JD 10 Line Out (L)
1
2
3579
46
10
Flexi Drive Bay System
The Twelve Hundred comes with twelve 5.25” external drive bays at the front
of the case. There are three HDD cages preinstalled inside the bottom nine 5.25”
bays. Each HDD cage occupies three consecutive 5.25” drive bays and can house
three hard disk drives. For maximum flexibility you can mount the HDD cage anywhere
within the external drive bays (i.e., you are not limited to the bottom six bays).
Possible Drive Bay combinations include but are not limited to:
• External 3 x 5.25” + internal 9 x HDD – default
• External 6 x 5.25” + internal 6 x HDD – by removing one HDD cage
• External 9 x 5.25” + internal 3 x HDD – by removing two HDD cages
• External 12 x 5.25” by removing all three HDD cages
Note: There is a middle fan bracket pre-installed on one of the HDD cages.
Install a 120mm fan to the bracket so the air will be blown into the case,
if you decide to use the HDD cage as a cooling duct to cool your graphics
card or CPU. However, this will stop you from installing your hard drives
into this cage. Remove the middle fan bracket from the HDD cage if you
decide to mount your hard drives into this cage.
• External 3 x 5.25” + internal 6 x HDD + cooling duct – by adding the middle
fan to one of the HDD cages (see Cooling System)
• External 6 x 5.25” + internal 3 x HDD + cooling duct – by adding the middle
fan to one of the HDD cages (see Cooling System)