3-8 MFP Service Manual
7500-432, -632, and -832
4. Release the button, and the shading is removed.
Touch Back to exit the test.
DRAM Test
The DRAM Test is used to check the validity of standard and optional DRAM memory. The test writes patterns of
data to DRAM to verify that each bit in memory can be set and read correctly.
To run the DRAM Test:
1. Touch HARDWARE TESTS from the Diagnostics Menu.
2. Touch DRAM Test. DRAM Test Testing... appears on the display. Then the message Resetting the
Printer appears and the power LED is green. While the DRAM test executes, the power indicator blinks
amber. The printer automatically performs a POR.
The following type of message appears:
• P:###### represents the number of times the memory test has passed and finished successfully.
Initially 000000 displays with the maximum pass count being 999,999.
• F:##### represents the number of times the memory test has failed and finished with errors. Initially
0000 displays with the maximum fail count being 99,999. Initially only four digits appear, but
additional digits appear as needed.
To stop this test before completion, turn the printer off.
DRAM Test 256 MB P:###### F:####
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