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AS1020S-8 User's Manual
1-2 Serverboard Features
At the heart of the 1020S-8 lies the H8DSR-8, a dual processor serverboard based
on the Serverworks HT-2000/1000 chipset. Below are the main features of the
H8DSR-8. (See Figure 1-1 for a block diagram of the HT-2000/1000 chipset).
Processors
The H8DSR-8 supports single or dual 940-pin AMD Opteron 200 Series processors.
Please refer to the serverboard description pages on our web site for a complete
listing of supported processors (www.supermicro.com/aplus/).
Memory
The H8DSR-8 has eight 184-pin DIMM slots that can support up to 16 GB of regis-
tered ECC DDR400 SDRAM or up to 32 GB of registered ECC DDR333 SDRAM.
The memory is an interleaved confi guration, which requires modules of the same
size and speed to be installed in pairs.
Onboard SCSI
Onboard SCSI is provided with an Adaptec AIC-7902W SCSI chip, which supports
dual channel, Ultra320 SCSI at a throughput of 320 MB/sec for each channel. The
H8DSR-8 provides two LVD Ultra320 SCSI ports.
Onboard Controllers/Ports
One fl oppy drive controller and one ATA/100 controller are provided to support up
to three hard drives or ATAPI devices. The color-coded I/O ports include one COM
port (an additional COM header is located on the serverboard), a VGA (monitor) port,
two USB 2.0 ports, PS/2 mouse and keyboard ports and two G-bit Ethernet ports.
ATI Graphics Controller
The H8DS8 features an integrated ATI video controller based on the Rage XL
graphics chip.
Other Features
Other onboard features that promote system health include onboard voltage moni-
tors, a chassis intrusion header, auto-switching voltage regulators, chassis and CPU
overheat sensors, virus protection and BIOS rescue.