Diagnostic Module - Lenovo 3057 Maintenance Manual

6 Front USB connectors
Used to attach a USB-compatible device, such as a USB keyboard, mouse, scanner, or printer. If you
have more than six USB devices, you can purchase a USB hub, which you can use to connect additional
USB devices.
7 VGA DB-15 connector
Used to attach a VGA-compatible video device, such as a VGA monitor.

Diagnostic module

This topic applies only to the following server models:
• Server models with eight 3.5-inch hard disk drive bays
• Server models with 2.5-inch hard disk drive bays
This topic provides information about the diagnostic module and the diagnostic LEDs on the panel of the
module. To locate the diagnostic panel, see "Front view of the server" on page 15.
Some server models come with one of the following diagnostic modules:
• Intelligent Diagnostics Module (IDM)
• Intelligent Diagnostics Module Premium (IDM Premium)
Many errors are first indicated by a lit error LED on the diagnostic panel of the server. If an LED is lit, one or
more LEDs elsewhere in the server might also be lit to direct you to the source of the error. See "System
board LEDs" on page 56.
Intelligent Diagnostics Module (IDM)
The IDM is available in some models to provide basic diagnostic functions. The following illustration shows
the diagnostic LEDs on the IDM panel.
Figure 12. IDM panel
1
Power supply error LED
2
Ambient temperature limit LED
3
System fan error LED
4
Memory module status LED
5
Microprocessor status LED
.
Chapter 3 Product overview
23