PB770 Sockets

Location Description
U1,U3 Video Upgrade Sockets
U2,U4 Dram EDO 256K X 16 60 KM 416 256 BJ-6 (Video)
U5 TTL IC 74LS125 SOP 14P NS - DM74LS125M
U6 TR PNP D45FONT CLASS=H2A to - 220 2P NS
U8,U9 PC CHIP 82438 VXAO PQ FP 100P INT
U10 REGULATOR LP2951 CMX 8P NS
U11 REGULATOR LM3411 SOT23 5P NS
U12 ZIF SOCKET 7 321 P AMP
U13 VGA IC 264 VT2 PQFP 208P ATI
U14 CLK GEN CY2260SC-3 SOP 280 CYP
U15,U16 Cache Memory
U17 REGULATOR TL431 SOP 80 NS
U18 Not Installed
U19 PC CHIP 82371SBBO PQFP 208P INT
U20 PC CHIP 824374XA2 PQFP 208P INT
U21 TTL IC 74F32 SOP 14P NS
U22 TTL IC 74F138 SOP 16P NS
U23,U29 TTL IC 74ALS245 SOP 20P NS
U24 IC OP AMP TL074 SOP 14P TI
U25 EEPROM 93C66 SOP 80 NS
U26 REGULATOR 78L05 TO-92 3P NEC
U27 TTL IC 74HCT14 SOP 14P MOT
U28 IC VOL DET DS1233 SOT-223 4P DAL
U30 PC CHIP FDC37C935 PQFP 160 SMC
U31 F EPROM 28F00 2BXT80 TSO 40P INT (BIOS)
U32 Not Installed
U33 AUDIO CHP AZTECH-2320-R2 PQFP 100P
U34 TTL IC 74F07 SOP 14P NS
U35 TTL IC 74F00 SOP 14P NS
U36 TTL IC 74ALS08 SOP 14P NS
U37 IC I/F GD75232 SOP 20P GDL

CPU Socket
Intel Pentium 75 MHz Intel Pentium 133 MHz
Intel Pentium 90 MHz Intel Pentium 150 MHz
Intel Pentium 100 MHz Intel Pentium 166 MHz
Intel Pentium 120 MHz Intel Pentium 200 MHz

Uses the 321-pin Type 7 Zero Insertion Force (ZIF) CPU Socket.

Disable cache to slow down the system.

See Also:Processor Upgrade Information

SIMM Sockets
The socket closest to U8 and U9. These two sockets make up the first bank (BANK 0). This motherboard uses two vertical right key metal latch SIMM sockets.

See Also: Ram Upgrade Information

U19 & U20 PCI Chipset
Intel Triton 824374XA2 PCI chipset.