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Acer 9100 Install Manual

Cpu board
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Download this manual See also: Service Manual, System Manual
CPU Board
The CPU board carries two sockets to support a powerful dual-CPU
configuration. The sockets accommodate the new Intel Pentium II
CPU running at 233/266 MHz. The Pentium II CPU incorporates the
first-level cache and boasts a new generation of power.
The board comes with four DRAM banks composed of four 168-pin
dual-inline memory module (DIMM) sockets that accommodate both
fast-page mode and EDO (extended data output) DIMMs.
Designed to work with Intel 440FX PCIset, the board includes the PCI
bridge/memory controller (PMC) and the data bus accelerator (DBX)
chipsets. The PMC provides bus control signals and address paths for
transfers between the host bus, PCI bus, and the main memory. The
DBX supports multiple-bit error detection and single-bit error correction
through the ECC/parity feature.
CPU Board
2-1

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Summary of Contents for Acer 9100

  • Page 1 CPU Board The CPU board carries two sockets to support a powerful dual-CPU configuration. The sockets accommodate the new Intel Pentium II CPU running at 233/266 MHz. The Pentium II CPU incorporates the first-level cache and boasts a new generation of power. The board comes with four DRAM banks composed of four 168-pin dual-inline memory module (DIMM) sockets that accommodate both fast-page mode and EDO (extended data output) DIMMs.

  • Page 2: Jumper Locations

    Layout Pentium II CPU Socket 1 Pentium II CPU Socket 2 Figure 2-1 CPU Board Layout Jumper Locations Figure 2-2 Pentium II CPU Board Jumper Locations CPU Voltage Regulators DIMM Sockets User’s Guide...

  • Page 3: Jumper Settings

    Jumper Settings Table 2-1 Settings for CPU Core/Bus Frequency Ratio (JP1) JP1 Settings 0 - Pins open 1 - Pins Closed Table 2-2 ITP Debug Port (JP2) CPU 1* CPU 2 0 - Pins open 1 - Pins closed Table 2-3 Clock Settings (JP5) Clock Speed 66 MHz*...

  • Page 4: Memory Upgrade

    Memory Upgrade The system board comes with eight 168-pin sockets, labeled DIMM1 to DIMM4, that accommodate single-density and double-density DIMMs. The sockets support both the fast-page mode and EDO DIMMs for a total of 512-MB system memory using 128-MB DIMMs. Table 2-4 lists some possible memory configurations.

  • Page 5: Installing A Dimm

    2.4.2 Installing a DIMM To install a DIMM, align it with the socket and press it down until the holding clips secure the DIMM in place. The DIMM socket is slotted to ensure proper installation. If you slip in a DIMM but does not completely fit, you may have inserted it the wrong way.

  • Page 6: Removing A Dimm

    2.4.3 Removing a DIMM To remove a DIMM, press the holding clips on both sides of the socket outward to release the DIMM. Place your forefingers on the top of the DIMM before you press the holding clips to gently disengage the DIMM from the socket.

  • Page 7: Reconfiguring The System

    2.4.3 Reconfiguring the System You must enter Setup after installing or removing SIMMs to reconfigure the system. Follow these steps to reconfigure the system: Turn the system on. A memory error message appears, indicating that the total memory does not match the value stored in CMOS.

  • Page 8: Installing The Processor Heat Sink And Fan

    Installing the Processor Heat Sink and Fan The Pentium II processor module comes with holes on one side to hold the clips of the heat sink and fan. The upper set of holes (near the latches) on the processor are wider and should match the wider ends of the clips on the heat sink.
  • Page 9 Follow these steps when installing the heat sink and fan to the Pentium II processor module: Remove the thermal tape protector at the back of the heat sink. Insert the wide clip ends to the wide holes on the processor and the narrow clip ends to the narrow holes.
  • Page 10 Figure 2-7 Locking a Wide Clip End Figure 2-8 Locking a Narrow Clip End Repeat step 3 to lock the other clip. 2-10 User’s Guide...

  • Page 11: Installing A Pentium Ii Processor

    Installing a Pentium II Processor Follow these steps to install the Pentium II processor to the socket on the CPU board. Place the retention mechanism over the processor socket on the CPU board. Secure it with the screws that came with the package.
  • Page 12 Press down the processor module until the golden fingers completely fit into the socket. Figure 2-10 Installing a Pentium II Processor Press the latches on the sides to lock the processor module into place. Figure 2-11 Securing the Pentium II Processor 2-12 User’s Guide...

  • Page 13: Removing A Pentium Ii Processor

    Removing a Pentium II Processor Follow these steps to remove the Pentium II CPU module from the slot. Unlock the latches the secure that processor module. Figure 2-12 Unlocking the Module Latches Firmly hold the processor module and pull it out of the socket. Figure 2-13 Removing the Pentium II Processor CPU Board...

  • Page 14: Cpu Board Installation

    CPU Board Installation After setting the jumpers and installing memory modules and CPUs, install the CPU board into the CPU board slot on the system board. Follow these steps to install the CPU board: Position the CPU board over the slot on the system board such that the component side (CPU side) faces upward.

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