Eksotičen chipset (VX Pro) in DIMM

Vx Pro je drugo ime za Via Apollo VP-1 ...

Concurrent DRAM writeback
Four Cache lines (16 quadwords) of CPU/cache to DRAM write buffers
Fast Page Mode/EDO/Burst EDO/Synchronous-DRAM support in a mixed combination
Mixed 1M/2M/4M/8M/16MxN DRAMs
6 banks up to 512MB DRAMs (maximum four banks of Synchronous DRAM)
Flexible row and column addresses
64 bit or 32 bit data width in arbitrary mixed combination
3.3v and 5v DRAM without external buffers
Speculative DRAM access
Read around Write capability for non-stalled CPU read
Burst read and write operation
4-2-2-2 on page, 7-2-2-2 start page and 9-2-2-2 off page timing for EDO DRAMs at 50/60Mhz
5-2-2-2 on page, 8-2-2-2 start page and 11-2-2-2 off page timing for EDO DRAMs at 66/75Mhz
5-1-1-1 on page, 8-1-1-1 start page and 10-1-1-1 off page for Burst EDO and SDRAMs at 66/75Mhz
5-2-2-2-3-1-2-2 back-to-back access for EDO DRAM at 66/75Mhz
5-1-1-1-3-1-1-1 back-to-back access for BEDO and SDRAM at 66/75Mhz
BIOS shadow at 16KB increment
Decoupled and burst DRAM refresh with staggered RAS timing
Programmable refresh rate, CAS-before-RAS refresh and refresh on populated banks only