466 DX/2 (259-5149) Layout Faxback Doc. # 2205 Serial Port A ─┐ ┌─ Serial Port B Parallel Port ──┐ │ │ ┌─ Mouse port Monitor─┐ │ │ │ │ ┌─ Keyboard Connector ┌─┬──┴┬─┬────────┴─┬─┬─┴─┬─┬─┴─┬─┬┴┬─┬┴┬─────────────────┐ Battery │ └───┘ └──────────┘ └───┘ └───┘ └─┘ └─┘┌┐ <─────────────┼ Connector │(123) └┘ │ (J7) │ °°° J31 (123) │ │ °°° J30 ┌─┐ °°° J9 ┌─┐│ │ °°° J29 │ │ °°° J11 │ ││<┐ │ °°° J28 │ │ (123) ├─┤│ │Power │ °°° J27 │ │(321) │ ││<┘Connectors │ °°° J26 │ │ °°° J13 └─┘│ (J10, J15) Vesa ┌┐┌┐┌┐┌┐┌┐<─ Video J32 ° │ │ °°° J14 │ Conn.││││││││││ Memory ° │ │(321) ┌┐<──┼ IDE (J12)││└┘└┘└┘└┘ Sockets │ │ ││┌┐ │ Connection │ └┘ (97531) │ │ ││││ │ (J17) │ °°°°° J16 │ │<── Riser ││││ │ │ °°°°° │ │ Card ││││ │ │ (10-8642) │ │ Connector ││││ │ │┌┐┌┐┌┐┌┐┌┐┌┐┌┐┌┐┌┐┌┐<─ Cache │ │ ││││ │ │││││││││││││││││││└┘ Upgrade │ │ ││││<│ Floppy Drive │└┘└┘└┘└┘└┘└┘└┘└┘└┘ Sockets │ │ └┘└┘ │ Connection │(531) ┌────────┐ │ │ │ (J18) │ °°°J19│ U62 │<-Performance│ │ │ │ °°° │ │ Upgrade └─┘ │ │(642) └────────┘ Socket │ │┌────────────────────┐<─┐ │ │├────────────────────┤ Memory │ │├────────────────────┤ Bank B │ │├────────────────────┤ │ │ │╞════════════════════╡<─┤ │ │├────────────────────┤ Memory │ │├────────────────────┤ Bank C │ │├────────────────────┤ │ │ │└────────────────────┘<─┘ │ │┌─────────────────────────────┐<── Memory Bank A │ │└─────────────────────────────┘ (32 bit simm) │ │ °° J20 │ └────────────────────────────────────────────────────────┘ ┌─────────────────┐ │Jumper Settings: │ └─────────────────┘ A jumper is a small, plastic cover that contains metal contacts. Jumpers are placed on small metal pins that protrude from a circuit board. Jumpers and pins are grouped and labeled as jumper blocks. The jumpers on the main logic board are set at the factory for your computer model. However, if you install certain hardware options or choose to enable or disable certain system features, you might need to change some jumper settings. CAUTION: Incorrect jumper settings can cause a malfunction or a decrease in performance. The following example show the settings for jumpers on the main logic board. For example, "1-2" indicates that the jumper should be installed on Pins 1 and 2. Example: (123) <- Numbers in parentheses indicate order of pins °°° J9 <- Jumper Name - this is marked on main logic board Would look like: ┌───┐<───── Jumper Block │o o│o J9 └───┘ Omni Profile CPU with a: ┌────────────┐ │66Mhz DX2 │ │Processor │ │ │ ├────────────┤ │J19 3-5, 4-6│ │J26 1-2 │ │J27 1-2 │ └────────────┘ Secondary Cache Memory (J16): ┌────────────┬───────────────────────────────────────┐ │CACHE SIZE │ J16 JUMPER SETTINGS │ ├────────────┼───────────────────────────────────────┤ │None │ 1-2,3-4,5-6,9-10 (factory settings) │ │64KB │ No jumpers installed (remove factory jumpers) │128KB │ 1-2,5-6,7-8 │ │256KB │ 1-2,3-4,5-6,9-10 │ └────────────┴───────────────────────────────────────┘ See Faxback Document # 2220 for installation instructions for Cache memory. Microprocessor Type (J19): ┌─────────────────┬──────────────────────────────────┐ │Microprocessor │ J19 JUMPER SETTINGS │ ├─────────────────┼──────────────────────────────────┤ │486SX, 487SX or │ 1-3, 2-4 │ │Overdrive for SX │ │ ├─────────────────┼──────────────────────────────────┤ │486DX, 486DX2 or │ 3-5, 4-6 (factory setting) │ │Overdrive for DX │ │ └─────────────────┴──────────────────────────────────┘ CMOS RAM and Power On Password Clear (J20): ┌────────────────┬───────────────────────────────────┐ │CMOS RAM STATUS │ J20 JUMPER SETTING │ ├────────────────┼───────────────────────────────────┤ │Not cleared │ Jumper installed (factory setting)│ │Cleared │ Jumper not installed │ └────────────────┴───────────────────────────────────┘ See Faxback Document # 2208 for specific instructions on clearing the CMOS ram. Microprocessor Speed (J26 & J27): ┌─────────────────────┬──────────────────────────────┐ │Microprocessor Speed │ J26 J27 JUMPER SETTINGS │ ├─────────────────────┼──────────────────────────────┤ │25 or 50 Mhz │ 1-2 2-3 │ ├─────────────────────┼──────────────────────────────┤ │33 or 66 Mhz │ 1-2 1-2 (factory setting) │ └─────────────────────┴──────────────────────────────┘ On-Board Video (J28): ┌──────────────────────┬─────────────────────────────┐ │ON-BOARD VIDEO │ J28 JUMPER SETTING │ ├──────────────────────┼─────────────────────────────┤ │Enable │ 2-3 (factory setting) │ │Disable │ 1-2 │ └──────────────────────┴─────────────────────────────┘ Note: Disable only if another video card is used in the CPU. Diskette Drive Write Protection (J30): ┌──────────────────────┬─────────────────────────────┐ │DISKETTE DRIVE │ J30 JUMPER SETTING │ │WRITE PROTECTION │ │ ├──────────────────────┼─────────────────────────────┤ │Enable │ 1-2 │ │Disable │ 2-3 (factory setting) │ └──────────────────────┴─────────────────────────────┘ Note: Enable will make all floppy disk read only. On-Board Video Zero Wait State (J32): ┌────────────────┬───────────────────────────────────┐ │ZERO WAIT STATE │ J32 JUMPER SETTING │ ├────────────────┼───────────────────────────────────┤ │Enabled │ Jumper installed (factory setting)│ │Disabled │ Jumper not installed │ └────────────────┴───────────────────────────────────┘ Note: Change this setting only to resolve a conflict with an ISA expansion adapter that also uses zero wait state operation. ┌────────────────────────┐ │Reserved Jumper Blocks: │ └────────────────────────┘ The following jumper blocks are reserved for factory use. Use only the factory settings. ┌──────────────────┬────────────────────────────────┐ │Jumper Block │ Factory Setting: │ ├──────────────────┼────────────────────────────────┤ │J9 │ 1-2 │ │J11 │ Jumper not installed │ │J13 │ 1-2 │ │J14 │ 2-3 │ │J29 │ Jumper not installed │ │J31 │ 2-3 │ └──────────────────┴────────────────────────────────┘ (rjs-06/02/93) (smm 08/25/93)