IBM IntelliStation A Pro 6224, Руководство по техническому обслуживанию и ремонту

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Microprocessor-board diagnostic LEDs
If a microprocessor board has been installed on the system board, there are
additional error LEDs on the microprocessor board. Figure 3 shows the error LEDs
on the microprocessor board.
Each error LED is lit to indicate a problem with a specific component. After a
problem is corrected, the LED will not be lit the next time the computer is restarted.
If the problem remains, the LED will continue to be lit. For information about how to
correct the problems indicated by the error LEDs, see “Microprocessor board LEDs”
on page 92.
Troubleshooting the Ethernet controller
See the Ethernet controller documentation on the Device Drivers CD for information
about problems that might occur with the Ethernet controller.
Recovering the operating system and preinstalled software
This section contains instructions for recovering BIOS code, device drivers, the
operating system, and other support software.
Recovering the operating system
The Product Recovery program is on a hidden partition of the hard disk. The
Product Recovery program runs independently of the operating system and
reinstalls the operating system and preinstalled software.
Attention: If you are using FDISK, Disk Management, or another utility to
reformat the hard disk, you might see the partition where the Product Recovery
program is stored. Do not delete this partition; otherwise, the Product Recovery
program will be lost.
If the hard disk drive, including the partition that contains the Product Recovery
program, becomes damaged or if you replace the hard disk drive, use the IBM
Product Recovery CD to recover the preinstalled operating system, application
programs, and device drivers (see “Product recovery CDs” on page 111).
DIMM 8 error LED
DIMM 7 error LED
DIMM 6 error LED
DIMM 5 errorLED
Microprocessor 2 fan
error LED Microprocessor 2
error LED
Figure 3. Microprocessor-board diagnostic LEDs
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IntelliStation A Pro Type 6224: Hardware Maintenance Manual and Troubleshooting Guide