W4 — running speed
Table 6- 4: Jumper W4
W5 — Turbo LED
W6 — video selection
W7 — math coprocessor
W8 — BIOS selection
J1 — power LED
J2 — hardware reset
J3 — speaker connector
10
Chapter 6: Appendix
1 & 2 shorted — mono
2 & 3 shorted -color
1 & 2 shorted — install
2 & 3 shorted — not install