M40C Motherboard
Specification
- Supports 75/90/100/120/133/150/166/200mhz Pentium Processors.
- Opti Viper-M chipset.
- Supports 4 72-pin SIMM DRAM modules in multiple configuration up to 128MB main memory.
- Support write-back Level 2 external SRAM cache up to 1MB.There are 9 32-pin SRAM sockets for individual SRAM chips, which allow installation of 256KB, 512KB, or IMB of Aysnchronous SRAM and a SRAM module edge connector for user to install 256KB or 512KB Pipeline Burst SRAM.
- Riser card design to support 2 ISA/2 PCI or 3 ISA/1 PCI expansion slots.
- Onboard ATI Mach 64 Windows accelerator or 3D graphic accelerator.
- Onboard the UM8669 Super Multi-I/O chip to support 2 16650 UART compatible serial ports, one parallel port (SPP, EPP, ECP), one floppy disk drive controller with support for drives up to 2.88MB.
- Onboard Keyboard and PS/2 Mouse controllers.
- Onboard PCI Bus Master Enhanced IDE controller with 2 connectors support 4 IDE devices in 2 channels, which supports up to PIO Mode 4 and DMA Mode 2.
- Onboard Creative CT2505 16-bit Sound controller.
- BIOS supports "Plug and Play", Green PC Power Saving management features.
- Onboard Flash EPROM for BIOS upgrade from floppy.
Jumpers
Jumper | Description | Setting | Designation |
JP4 | Flash EPROM Type | 2-3 1-2 | 5V EPROM 12V EPROM |
JP14,JP15 | IR or COM2 Function | both 2-3 both open | IR COM2 |
J17 | CMOS Reset | open closed | Normal CMOS Clear |
Cache Upgrades
Installing ASRAM
Cache | JP7 | JP10 | JP11 | SRAM Chip | Speed | Tag RAM |
| | | | | | |
256KB | open | open | open | 32KBx8pcs | <15ns | 8K8,16K8 or 32K8x1pc |
512KB | open | open | closed | 64KBx8pcs | <15ns | 16K8 or 32K8x1pc |
1MB | open | closed | closed | 128K8x8pcs | <15ns | 32K8x1pc |
Installing Pipeline Burst SRAM on Cache Module
The cache module can be installed with 256KB or 512KB Pipeline Burst SRAM Module.Jumper for JP7 needs to be installed to configure the PBSRAM.Note - Install either the SRAM ICs or the Cache Module, do not install both at the same time.
CPU Upgrades
This motherboard Supports 75/90/100/120/133/150/166/200mhz Pentium Processors.
CPU Speed | JP6 | JP12 | JP16 | JP17 |
| | | | |
75MHz | open | closed | open | open |
90MHz | closed | open | open | open |
100MHz | closed | closed | open | open |
120MHz | closed | open | open | closed |
133MHz | closed | closed | open | closed |
150MHz | closed | open | closed | closed |
166MHz | closed | closed | closed | closed |
200MHz | closed | closed | closed | open |
AWARD BIOS Setup
BIOS Setup configures the system information that is stored in CMOS RAM.BIOS Setup has an easy-to-use user interface that will be immediately recognised.To access the BIOS press DEL or Ctrl+Alt+Esc when the message "To Enter Setup Before Boot Press Ctrl-Alt-Esc or Del Key" appears.
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