在 wikipedia 上 Virtual PC 有一段敘述是這樣:
Virtual PC emulates an Intel Pentium II processor
(but virtualizes the host processor on Windows versions)
with an Intel 440BX chipset, a standard SVGA Vesa graphics card
(S3 Trio 64 PCI with 4 MByte Video RAM, adjustable in later versions),
a system BIOS from American Megatrends (AMI),
a Creative Labs Soundblaster 16 PnP,
and a DEC 21041 (DEC 21140 in newer versions) Ethernet network card.

大略描述出 Virtual PC 模擬出來的是什麼樣的配備.
查了一下 440BX... 查到一句話
Can interface with ATA/66 Hard Disk Drives in UDMA mode 2
所以要開得起 udma5? 三個字: 不可能

以上仍然是僅供參考, 正確性要看 wikipedia 那段話的正確性了