
Memory-card  LEDs
The following illustration shows the LEDs on a memory card.
| Light path | DIMM 1 | |
| DIMM 2 | ||
| diagnostics | ||
| button | DIMM 3 | |
| 
 | ||
| 
 | DIMM 4 | 
| Light path | DIMM 5 | |
| DIMM 6 | ||
| diagnostics | ||
| 
 | ||
| button | DIMM 7 | |
| power LED | DIMM 8 | |
| 
 | 
Memory card/DIMM error LED
Memory card only error LED
DIMM 1 error LED DIMM 2 error LED DIMM 3 error LED DIMM 4 error LED
DIMM 5 error LED DIMM 6 error LED DIMM 7 error LED DIMM 8 error LED
32IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Installation and User's Guide
