D-Link DIR-615 C2 64MB memory mod

DO NOT DO THIS UNLESS YOU HAVE GOOD SOLDER SKILS!
YOU CAN DESTROY PCB PADS AND BRICK YOU DEVICE!
TRAIN ON BROKEN HARDWARE FIRST!

1. Find a PC3200 DDR2 512MB PC memory with 8 TSOP-66 chips on it (Each chip has 64MB size and 8M x 4bank x 16bit memory organization) or 256 SODIMM with 4 memory chips. You should use only 4bank x 16bit memory chips! You are lucky if you got 16M x 4bank x 16bit (128MB) chip - use it!
2. Desolder all chips using rose alloy
3. Desolder chip from DIR-615 pcb and solder new one.

Here is the list of operations:

• Tools and materials 

• This is photo of original memory chip

 

• Flux applied

• Rose alloy melted to lower melting point temperature

• Old original 32MB chip desoldered

• PCB pads cleaned using soldering iron & cotton swab

• New 64MB chip soldered (use a lot of good flux and clean it after soldering)

There is no need for software changes. Original u-boot detects memory size automaticaly. Just double check your soldering for shorts and other defects before powering up device.

• This is the result

• root@dir615c2:/# free
                 total         used         free       shared      buffers
     Mem:        62112        22164        39948            0         1356
     Swap:       507176            0       507176
    Total:       569288        22164       547124