System Installation; Cpu; Dram - Casio QT-7300 Service Manual

4. SYSTEM INSTALLATION

This chapter describes the installation of the overall system of the QT-7300. See Chapter 4 for more details on
the motherboard in detail.
The QT-7300 has a Celeron/Pentium III based motherboard with a free PCI slot inside. It already builds in an
Intel Celeron CPU, 64MB of DRAM and a 2.5" HDD. These are all standard and the system is ready to play.
Variety of the I/O ports located at the bottom side and the right side of the chassis are available for customers
to connect external peripheral devices, such as a monitor, serial devices, parallel printer...etc. However, the
interface specification of the peripherals are vary depend on the manufactures and may not applicable to the QT-
7300 POS system. Please confirm list of the peripheral devices which are test by Casio as the QT-7300 POS
system before you choose the peripherals.
Note: Since all specification and quality of the system are assured by Casio as the QT-7300 POS system, any
local modification of the CPU, DRAM, HDD, jumper setting on the motherboard or system components
by customer will not be applicable for Casio's guarantee or warranty unless modification are assured
or instructed by Casio.

4-1. CPU

The QT-7300 system already builds in a designated CPU in the socked on the motherboard.
QT-7300: Intel Celeron 566MHz on the motherboard SBC8360-4M
To maintain the CPU, follow the instructions below.
1. Pull the lever sideway away from the socket. Then, raise the lever up to a 90-degree angle.
2. Locate pin 1 at the corner of the CPU socket and align the CPU's pin 1. Then place the CPU in the socket.
Check the notch on the corner of the CPU and the socket are properly aligned.
3. Press, the lever down to complete the installation. The CPU should always have a Heat Sink with thermal
sheet and a cooling fan attached to prevent overheating.
4. When a CPU is installed, the jumper settings on the motherboard are properly installed as factory default for
the QT-7300 (see Chapter 4 or 5 for CPU jumper settings).

4-2. DRAM

The QT-7300 provides 1 x 168-pin DIMM sockets and 64MB of SDRAM as standard. Maximum system memory
up to 128MB (unbuffered) / 256MB (buffered), respectively. To install the memory module, follow the instructions
below and check the list of DRAM memories tested as QT-7300.
1. The DIMM slots has 2 Notch Keys, so the DIMM memory module can fit in one direction.
2. Insert the DIMM memory module vertically into DIMM slot. Then push in.
3. The plastic clip at the side of the DIMM slot will automatically close.
The system is able to detect the new memory size automatically and it is not necessary to change the system
configuration after installation.
— 11 —