Diamond motherboards and 200MHz Pentium processors
IPB UPDATE
This IPB supersedes IPB 4172 dated 9 February 1996
Please disregard all previous copies.
Current owners handbooks will only show the upgrade path to 150MHz
Pentium processors. This is because when the manuals were printed the 150MHz option was
considered to be the fastest that Intel would offer. However, as this has not proved to be
the case, these are the settings for installing the 166MHz chips.
Intel have now released a 200Mhz Pentium processor. The settings are
shown below.
| Processor Speed |
PL17 |
SW1, || = Link, : = No link |
ISA (MHz) |
| P 75 |
VRE |
Pin 1 || || : : : : : : |
8.33 |
| P 90 |
VRE |
Pin 1 : || : : || : : : |
7.5 |
| P 100 |
VRE |
Pin 1 || : : : || : : : |
8.33 |
| P 120 |
VRE |
Pin 1 : || || : || : : : |
7.5 |
| P 133 |
VRE |
Pin 1 || : || : || : : : |
8.33 |
| P 150 |
VRE |
Pin 1 : || || || || : : : |
7.5 |
|
| P 166 |
VRE |
Pin 1 || : || || || : : : |
8.33 |
| P 200 |
VRE |
Pin 1 || : : || || : : : |
8.33 - see note |
Although shown here with no links, the final 3 positions
don't matter if they are linked or not.
SW1 is located (looking from the front of the machine) on the left hand
edge of the motherboard, slightly behind the cache socket.
NOTE: To use the 200Mhz processor, bios version 5.07 or greater must be
used. The use of an earlier bios version will not support the processor. |
