Sony PCV-R558DS Reference Manual - Page 114
Drives and Controllers, System BIOS - driver
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100 VAIO Digital Studio Reference Manual Drives and Controllers Diskette controller Diskette drive EIDE controller IDE hard drive* DVD-ROM drive† CD-RW drive‡ 82077-compatible (supports up to 2.88 MByte) 1.44 MByte 3.5-inch MFDD Supports up to four EIDE drives (supports PIO Mode 4 EIDE drives and Ultra DMA/66 Mode drives) PCV-R556DS: 30 GByte PCV-R558DS: 40 GByte DVD-ROM read: 16X (maximum performance). CD-ROM read: 40X (maximum performance). CD-RW read: 20X (maximum performance). CD-RW write: 4X (maximum perfornance). CD-R read: 32X (maximum performance). CD-R write: 8X (maximum performance). CD-ROM read: 32X (maximum performance). * Bus-mastering EIDE driver installed. † Data on a DVD-ROM is read at a variable transfer rate, ranging from 6.6X at the innermost track to 16X at the outermost track (the data transfer standard 1X rate is 1385 kbytes/s). The average data transfer rate is 11.3X (15,255 kbytes/s). Data on a CD-ROM is read at a variable transfer rate, ranging from 17.2X at the innermost track to 40X at the outermost track (the data transfer standard 1X rate is 150 kbytes/s). The average data transfer rate is 28.6X (4293 kbytes/s). ‡ CD-RW writing speed may vary, depending on the media. The maximum writing speed is 8X (1X = 150 kbytes/s). The maximum reading speed is 20X. System BIOS Make and model ROM Passwords Power management Advanced features Plug and Play devices Special features Award-based 2Mbit flash-ROM* User and supervisor passwords supported APM 1.2 ACPI-1.0 compliant hardware for use with APM and PNP BIOS APIs Supported with steerable DMA channels and interrupts PC-99 compatible, multi-boot, PCI add-in card autoconfigure * Flash-ROM update utility is available from Sony's web site at http://www.sony.com/pcsupport.