HP Workstation x4000 hp workstation x4000 - Technical Reference manual - Windo - Page 72

Hardware Monitoring, Built-in Self Test (BIST), Sensor Scan

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Hardware Management (Monitoring and Reporting) Hardware Monitoring Hardware Monitoring Built-in Self Test (BIST) Zircon Lite does a BIST after resetting and displays the result on the Diag LEDs (see "Understanding the Diag LEDs" on page 212) if an error occurs. The following items are checked: • Accessibility of SEL device • Accessibility of FRU device • Accessibility of SDR Repository (read only) • Viability of Hardware Management Controller (HMC) firmware (firmware corrupt) • HMC hardware problem (general HMC failure) Sensor Scan Voltages, temperatures, fan tachometers, processor-related items, and chassis intrusion are scanned. Table 5-1 Voltages Pin 10 of Winbond W83782D is be used as a 2.5 V reference. This voltage is used to calibrate all of the voltage readings in Table 5-1. Voltage Scan Sensor Sensor Signal Approx. Mid # ID Lower Limit Approx. Zircon Winbond Description Upper Pin Limit Pin 20h +12VIO +12VIO 10.7V 12V 13.2V 9 - 12V Supply for non-VRM 21h +3.3VSB 3.3VSB 3.05V 3.3V 3.55V 35 3.3V Standby 22h +2.5V 2.5V 2.3V 2.5V 2.7V 7 - 2.5V RDRAM Supply 72 Chapter 5

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Hardware Management (Monitoring and Reporting)
Hardware Monitoring
Chapter 5
72
Hardware Monitoring
Built-in Self Test (BIST)
Zircon Lite does a BIST after resetting and displays the result on the
Diag LEDs (see “Understanding the Diag LEDs” on page 212) if an error
occurs. The following items are checked:
Accessibility of SEL device
Accessibility of FRU device
Accessibility of SDR Repository (read only)
Viability of Hardware Management Controller (HMC) firmware
(firmware corrupt)
HMC hardware problem (general HMC failure)
Sensor Scan
Voltages, temperatures, fan tachometers, processor-related items, and
chassis intrusion are scanned
.
Voltages
Pin 10 of Winbond W83782D is be used as a 2.5 V reference. This voltage
is used to calibrate all of the voltage readings in Table 5-1
.
Table 5-1
Voltage Scan
Sensor
#
Sensor
ID
Signal
Approx.
Lower
Limit
Mid
Approx.
Upper
Limit
Zircon
Pin
Winbond
Pin
Description
20h
+12VIO
+12VIO
10.7V
12V
13.2V
9
-
12V Supply for
non-VRM
21h
+3.3VSB
3.3VSB
3.05V
3.3V
3.55V
35
3.3V Standby
22h
+2.5V
2.5V
2.3V
2.5V
2.7V
7
-
2.5V RDRAM
Supply