Rosewill Computer Case 422 Informacje Techniczne Pobierz pdf (Strona 44)

Cables and Connectors

127

Disassembly

and Power

Figure 4.7 Motherboard connectors for narrow cables

Pin 1

Notched connectors

Figure 4.8 Three motherboard connectors

Some manufacturers do not put any markings on the cable connector; even so, there is

a way to determine which way to connect the cable. Remove the adapter, motherboard, or

device from the computer. Look where the connector solders or connects to the motherboard

or adapter. Turn over the adapter. Notice the silver blobs, known as solder joints, on the back

of the motherboard or adapter. Solder joints con-

nect electronic components to the motherboard or

adapter. The connector’s solder joints are normally

round, except for the solder joint for pin 1, which is

square. Look for the square solder joint on the back

of the connector. If the square solder joint is not

apparent on the connector, look for other connectors

or solder joints that are square. All chips and connec-

tors mount onto a motherboard in the same direction—all pin 1s are normally oriented in the

same direction. If one pin 1 is found, the other connectors orient in the same direction. Insert

the cable so pin 1 matches the square solder joint of the connector. Figure 4.9 shows a square

solder joint for a connector on the back of an adapter.

Pin 1 is on the opposite end from the

higher stenciled number

If a higher number, such as 39 or 40, is stenciled

beside the connector, connect pin 1 and 2 of the

cable to the opposite end of that connector.

Tech

Tip

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 149 150

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Rosewill Computer Case 422 Informacje Techniczne Strona 44