AOpen AK77-333 - Page 12

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Expansion Slots
Including five 32-bit/33MHz PCI, one CNR and one AGP 4X slots. The PCI local bus throughput can be up to 132MB/s. The
Communication & Nectworking Riser (CNR)
slot provided from AK77-333 can support CNR interface for a Modem/Audio card.
The Accelerated Graphics Port (AGP)
specification provides a new level of video display sophistication and speed. The AGP
video cards support data transfer rate up to 1056MB/s. As AK77-333 includes one AGP expansion slot for a bus mastering AGP
graphic card, For AD and SBA signaling, AK77-333 can support 133MHz 2X/4X mode. Of five PCI slots provided, AK77-333
supports four master PCI slots for arbitration and decoding functions and one slave PCI slot.
Memory
With VIA Apollo KT333 chipset, the AK77-333 can support Double-Data-Rate (DDR) SDRAM. The DDR SDRAM interface allows
zero wait state bursting between the SDRAM and the data buffers at 266/333MHz. The six banks of DDR SDRAM can be
composed of an arbitrary mixture of 1M/2M4M/8M/16M/32M/64MxN DDR SDRAM and maximum up to 3GB. The AK77-333
allows DDR SDRAM to run at either synchronous or pseudo-synchronous mode with the host CPU bus frequency
(266/333MHz).
On-board AC97 Sound
AK77-333 uses the AC97 CODEC Realtek ALC650 chip, which supports high quality of 5.1 Channel audio effects. This on-board
audio includes a complete audio recording and playback system.