How to change the DIMM 1 in a HP 3005N - HP LaserJet P3005n Printer

As the message says, DIMM 1 failed.
It's pretty straight forward fix for a tech.
So the cost should be minimal for the labor and whatever the
replacement DIMM costs.

Mem test failure replace Dimm 0 or Mem test failure replace Dimm 1
If either of the are the messages displayed, the problem lies with the mother board (formatter).
DIMM 0 = On Board Memory - cannot be changed. DIMM 1 = Add On Ram - Can be Changed
Make Sure the printer firmware is up to date FIRMWARE
Most Likely the formatter board would require replacing.

Firmware upgrade. www.hp.com/go/ljp3005 firmware
Do it twice. Upgrade the firmware and then do it again. Don't ask.

That's your answer. Dimm Rom failure. Replace the Dimm Rom in slot 1.

.03 identifies it as a right fan error. The suggested remedy for this error is to replace the DC Controller board. Contact HP for replacement information.

Good Luck,

NOLA Tech

Formatter board, known problem, even if you don't have dimm installed. Part number q7847-60001. If it was manufactured after 3-2008, and is out of 1 year warranty, it is covered under extended 1 year warranty for formatter board only.

Hi Iwill be glad to assist you:
Description There is a problem with the printer memory. The dual inline memory module (DIMM) that caused the error will not be used. Values of X and Y are as follows: X = DIMM type 0 = read-only memory (ROM) 1 = random-access memory (RAM) Y = device location 0 = internal memory (ROM or RAM) 1 to 4 = DIMM slots 1, 2, 3, or 4 ZZ = error number 0 = unsupported memory 1 = unrecognized memory 2 = unsupported memory size 3 = failed RAM test 4 = exceeded maximum RAM size 6= invalid DIMM speed Action

1. Press Cancel Job to continue.
2. If the problem persists, turn the printer power off and then turn the printer power on.
3. It might be necessary to replace the specified DIMM. Turn the printer power off, and then replace the DIMM that caused the error.

Do the two sticks match, all the way down to VENDOR?

The unit has a bad formatter. The formatter generally comes with memory installed Part# Q7848-31004. Part is super easy to change 6 phillips head screws and 3 cables (ribbon, 6 pin, and 3 or 4 pin power) Remove formatter cover the remove formatter door by opening then lifting up, then unplug the 3 cables then remove the 6 screws. Install is reverse of removal.