# 4 Option

## SO-DIMM

The printer has 32 MB (HL-3040CN) or 64 MB (HL-3070CW) of standard memory and one slot for optional memory expansion. You can expand the memory up to 544 MB (HL-3040CN) or 576 MB (HL-3070CW) by installing a Dual In-line Memory Module (SO-DIMM).
In general, the machine uses industry-standard SO-DIMM with the following specifications:

• | Type: 144 pin and 64 bit output
• | CAS latency: 2
• | Clock frequency: 100 MHz or more
• | Capacity: 64, 128, 256 or 512 MB
• | Height: 31.75 mm (1.25 in.)
• | SDRAM can be used.

For purchasing information and part numbers visit the Buffalo Technology website:
http://www.buffalo-technology.com/
Note

• | There might be some SO-DIMMs that will not work with the printer.
• | For more information, call the dealer you bought the printer from or Brother Customer Service.

### Installing extra memory

Note

| Always turn off the printer power switch before installing or removing the SO-DIMM.

1 | Turn off the printer power switch, and then unplug the printer. Disconnect the interface cable from the printer.
2 | Remove the plastic (1) and then the metal (2) SO-DIMM covers.
3 | Unpack the SO-DIMM and hold it by its edges. CAUTION
| To prevent damage to the printer from static electricity, DO NOT touch the memory chips or the board surface.
4 | Hold the SO-DIMM by the edges and align the notches in the SO-DIMM with the protrusions in the slot. Insert the SO-DIMM diagonally (1), then tilt it toward the interface board until it clicks into place (2).
5 | Put the metal (2) and then the plastic (1) SO-DIMM covers back on.
6 | Reconnect the interface cable to your printer. Plug the printer back in, and then turn on the power switch.

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