IBM SG24-4576-00 - Manual (Page 202)

System - IBM Dual Pentium PCI-EISA System Board
Jumper Name: W1 - Level 1 Cache.
Default factory settings:
OFF
Change settings to:
OFF
+-------+
| o
o |
+-------+
1 2
This jumper sets the level 1 (CPU¢s internal) cache to write-back or
write-through mode.
Install a jumper for write-through mode. Do not
jumper for write-back mode. Default is the faster write-back mode.
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Jumper Name: W5 - Level 2 Cache.
Default Change
factory settings
settings: to:
+---+
| o |
1
OFF OFF | |
| o | 2
ON ON | | |
| o |
3
+---+
This jumper along with W10 selects the level 2 cache size. Jumper pins
1-2 for 256K cache size.
Jumper pins 2-3 for 512K cache size.
Default is pins 2-3; 512K cache.
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Jumper Name: W6 - CPU clock.
Default factory settings:
ON OFF
Change settings to:
ON OFF
+-----------+
| o---o
o |
+-----------+
1 2 3
Jumper pins 1-2 for 90Mhz Pentiums or pins 2-3 for 100Mhz Pentiums.
Default is pins 1-2; 90Mhz Pentiums.
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NetWare Integration Guide