Lexmark T430 Service Manual - Page 101

4048-1xx DRAM Test The purpose of this test is to check the validity of DRAM, both standard and optional. The test writes patterns of data to SDRAM to verify that each bit in memory can be set and read correctly. To run the SDRAM Memory Test: 1. Select DRAM Test from the menu. The power indicator blinks indicating the test is in progress. DRAM Test P:###### xxxMb F:##### xxxMB represents the amount of installed DRAM memory in MB. 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 00000 displays with the maximum fail count being 99,999. 2. Once the maximum pass count or fail count is reached, the test stops, the power indicator is turned on solid, and the final results display. If the test fails, the message DRAM Error, displays for approximately three seconds and the failure count increases by 1. Turn the power off if you want to stop the test before it completes. Diagnostic aids 3-7