IBM 866631Y Hardware Maintenance Manual - Page 30

Temperature checkout, Recovering BIOS, Download a BIOS flash diskette from the World Wide Web. Go

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Temperature checkout Proper cooling of the system is important for proper operation and system reliability. For a typical Netfinity server, you should make sure: v Each of the drive bays has either a drive or a filler panel installed v Each of the power supply bays has either a power supply or a filler panel installed v The top cover is in place during normal operation v There is at least 50 mm (2 inches) of ventilated space at the sides of the server and 100 mm (4 inches) at the rear of the server v The top cover is removed for no longer than 30 minutes while the server is operating v The processor housing cover covering the processor and memory area is removed for no longer that ten minutes while the server is operating v A removed hot-swap drive is replaced within two minutes of removal v Cables for optional adapters are routed according to the instructions provided with the adapters (ensure that cables are not restricting air flow) v The fans are operating correctly and the air flow is good v A failed fan is replaced within 48 hours In addition, ensure that the environmental specifications for the system are met. See "Features and specifications" on page 3. For more information on specific temperature error messages, see "Temperature error messages" on page 138. Recovering BIOS If the BIOS code in the server has become corrupted, such as from a power failure during a flash update, you can recover the BIOS using the recovery boot block and a BIOS flash diskette. Note: You can obtain a BIOS flash diskette from one of the following sources: v Use the ServerGuide program to make a BIOS flash diskette. v Download a BIOS flash diskette from the World Wide Web. Go to http://www.pc.ibm.com/support/, select IBM Server Support, and make the selections for the server. The flash memory of the server consists of a primary page and a backup page. The J56 jumper controls which page is used to start the server. If the BIOS in the primary page is corrupted, you can use the backup page to start the server; then boot the BIOS Flash Diskette to restore the BIOS to the primary page. To recover the BIOS: 1. Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the cover. 2. Locate jumper J56 on the processor board (see "Processor board jumpers" on page 42). 3. Move J56 to pins 1 and 2 to enable secondary boot block page. 4. Insert the BIOS flash diskette into the diskette drive. 5. Restart the server. 20 Hardware Maintenance Manual: Netfinity 7100 - Type 8666

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Temperature checkout
Proper cooling of the system is important for proper operation and system
reliability. For a typical Netfinity server, you should make sure:
v
Each of the drive bays has either a drive or a filler panel installed
v
Each of the power supply bays has either a power supply or a filler panel
installed
v
The top cover is in place during normal operation
v
There is at least 50 mm (2 inches) of ventilated space at the sides of the server
and 100 mm (4 inches) at the rear of the server
v
The top cover is removed for no longer than 30 minutes while the server is
operating
v
The processor housing cover covering the processor and memory area is
removed for no longer that ten minutes while the server is operating
v
A removed hot-swap drive is replaced within two minutes of removal
v
Cables for optional adapters are routed according to the instructions provided
with the adapters (ensure that cables are not restricting air flow)
v
The fans are operating correctly and the air flow is good
v
A failed fan is replaced within 48 hours
In addition, ensure that the environmental specifications for the system are met.
See “Features and specifications” on page 3.
For more information on specific temperature error messages, see “Temperature
error messages” on page 138.
Recovering BIOS
If the BIOS code in the server has become corrupted, such as from a power failure
during a flash update, you can recover the BIOS using the recovery boot block and
a BIOS flash diskette.
Note:
You can obtain a BIOS flash diskette from one of the following sources:
v
Use the ServerGuide program to make a BIOS flash diskette.
v
Download a BIOS flash diskette from the World Wide Web. Go to
http://www.pc.ibm.com/support/, select IBM Server Support, and make
the selections for the server.
The flash memory of the server consists of a primary page and a backup page. The
J56 jumper controls which page is used to start the server. If the BIOS in the
primary page is corrupted, you can use the backup page to start the server; then
boot the BIOS Flash Diskette to restore the BIOS to the primary page.
To recover the BIOS:
1.
Turn off the server and peripheral devices and disconnect all external cables
and power cords; then, remove the cover.
2.
Locate jumper J56 on the processor board (see “Processor board jumpers” on
page 42).
3.
Move J56 to pins 1 and 2 to enable secondary boot block page.
4.
Insert the BIOS flash diskette into the diskette drive.
5.
Restart the server.
20
Hardware Maintenance Manual: Netfinity 7100 – Type 8666