Compaq AlphaServer ES40 - No MEM Error

3-26 Compaq AlphaServer ES40 Service Guide
3.4.3 No MEM Error
If the SROM code cannot find any usable memory, a 1-3-3 beep code is
issued (one beep, a pause, a burst of three beeps, a pause, and another
burst of three beeps), and the message “No MEM” is displayed on the
OCP. The system does not come up to the console program. This error
indicates missing or bad DIMMs.
The OCP and console terminal display text similar to the following:
Failed M:1 D:2
➊
Failed M:1 D:1
Failed M:0 D:2
Failed M:0 D:1
Incmpat M:1 D:4
➋
Incmpat M:1 D:3
Incmpat M:0 D:4
Incmpat M:0 D:3
Missing M:3 D:2
➌
Illegal M:2 D:2 ➍
No usable memory detected