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Here is the manual for your motherboard (since describing a diagram probably isn't very useful...) http://dlcdnet.asus.com/pub/ASUS/mb/socket939/A8N-SLI/e2024_a8n-sli.pdf
You want to look at pages 27-35, they describe what you need to plug into the motherboard. Basically make sure you have connected:
1) 24-pin power cable (from power supply) 2) 4-pin power cable (for CPU from power supply) 3) Any case fans with 3/4 pin connectors. 3) hard drives (SATA or IDE) 4) USB front panel ports 5) Audio front panel ports 6) Case plugs (power LED, hdd LED, power switch, and reset switch).
hi, heres a tip, you will need a diagram of your motherboard. if you have one, then you can start looking for the wires where it should be put. if none then you can search in the web for a diagram, you should know the exact model of your motherboard when searching for precise schematics.
Hi Paul, see page 8 number 15 for location. Than see page 19, System Panel Header in your manual. The basic wire color's for positive are red, blue, green & can also be light blue, light green, light red. Negative wires are usually white or black. Case wire colors do vary from case to case. To see pin one shown on page 19, (positive + for hard drive led = HDLED+). Bottom row farthest pin to the left of set. Pin two is above pin one. Pin two is, PLED+ (known as power led). Pin 3 is to the right of pin one & is HDLED- (Hard drive led, negative). Pin 4 is above pin 3 & is also PLED-, (Negative for power led). ECT!
If your new case has an internal speaker (Used for P.O.S.T, power on self test). This would connect to, Chassis Speaker Header located on page 8, number 16. Again, normally only two wires are used across the 4-pin connector. (One at each end of the connector).
When connecting IDE devices in your computer, there are a few rules you need to know about.
First, Master and Slave devices are different for the 80-wire cables and the 40-wire cables.
Inside your computer, you generally have two (2) IDE hard drive controller connections. They look this this 99% of the time:
[ The smaller one on the very top is a floppy drive controller connection )
Intel RC440BX Specification Pg. 46 Basic rules case wiring. The color black is considered ground -. Power wires + can be any other color including stripped wires. (This is standard but case Mfg change to their own specification). Pin 1 is + power for LED Hard drive green LED, Pin 2 is -/ground for Hard drive LED. (Pin 3 is + power for LED Hard drive yellow LED, Pin 4 is -/ground for Hard drive LED).(See more options on pg. 47). Pin 5 is + power for case On/off button, Pin 6 is -/ground On/off button. Pin 7 is + power for Reset Switch, Pin 8 is -/ground for Reset Switch. Once positive & negative pins has been located each connector follows in suit. The Intel RC440BX front case connector is in an odd location. The user will find it hard to connect front case LED connectors while the board in installed into the case.