Editing IBM PS/ValuePoint (section)

=== Type 1 vs Type 2 (486 VLB Boards) ===

The 486 VLB-era planars on the 6382, 6384, 6387 exist in two revisions:

* '''Type 1''' — write-through L2 cache; SIMM sockets run left-to-right.
* '''Type 2''' — write-back L2 cache; SIMM sockets run front-to-back when the I/O ports face away.

Distinguish them by SIMM socket orientation.<ref>http://ps-2.kev009.com/pcpartnerinfo/ctstips/859e.htm</ref> '''OverDrive jumpers''' differ: J10 / J11 on Type 1 boards; J17 / J18 on Type 2 boards. P24T-83 Pentium OverDrive requires '''BIOS v68 or later'''.<ref>http://ps-2.kev009.com/pcpartnerinfo/ctstips/859e.htm</ref>