Chapter 1 Introduction
SAGP-845EV is a PSB form factor board to work with a high performance processor. It is equipped with advanced multi-mode I/O, and designed for system manufacturers, integrators, or VARs who want to provide reliable and quality performance at a reasonable price.
In addition, SAGP-845EV’s onboard Intel 845G MGCH chip features built-in AGP4X capability which provides 3D graphics of up to 2048x1536x16-bit-color resolution. The onboard VGA shares 8MB system DDR-SDRAM.
An advanced high performance super AT I/O chip – ITE IT8712 is used in the SAGP-845EV board. Both on-chip UARTs are compatible with the NS16C550. The parallel port and IDE interface are compatible with IBM PC/AT architecture.
SAGP-845EV’s built-in ICH4 has 10/100 Fast Ethernet LAN capability. It’s fully integrated 10BASE-T/100BASE-TX LAN solution with high performance networking functions and low power features.
SAGP-845EV uses the advanced Intel 845G Chipsets that is a 100% software- compatible chipset with PCI 2.2 standard.
This PIAGP CPU card must be installed on IEI PCIAGP/PXAGP series backplanes. If onboard ISA interface is required, please be sure to install PISA-KIT01 daughter board on the specific socket on the backplane before ISA cards are installed to make sure the system works properly.
1.1 Specifications
| | |
| CPU (PGA 478) | Intel Pentium 4/4-M Processor, supports 400/533 |
| MHz FSB |
| |
| Bus interface | PCIAGP golden finger, but only AGP/PCI signal is |
| provided |
| |
| Bus speed | PCI: 33MHz |
| DMA channels | 7 |
| Interrupt levels | 15 |
| Chipset | INTEL 845G/GE/82801DB (ICH4) |
| Real-time clock | INTEL 82801DB (ICH4) |
| System memory | Two 184-pin DIMM sockets support DDR |
| 200/266/333(845GE) SDRAM up to 1GB. |
| |
| | − Up to four PCI Enhanced IDE hard drives |
| ATA/100 | − Can handle data transfer up to 100Mbps |
| − Backward-compatible with existing ATA-2 IDE |
| IDE interface |
| specifications so there is no need to do any |
| |
| | changes to users’ current peripherals |
| | Supports up to two floppy disk drives, 5.25” (360KB |
| Floppy disk drive interface | and 1.2MB) and/or 3.5” (720KB, 1.44MB, and |
| | 2.88MB) |
| | − COM1 (RS-232) & COM2 (RS-232) with 16C550 |
| | UART (or compatible) with 16-byte FIFO buffer |
| Serial ports | − Data transfer up to 115.2Kbps |
| | − Each port can be individually configured to be |
| | COM1, COM2 or disabled |
| | |
| | 4 |