View Full Version : Interface for CD-RW & DVD Drives
08-06-02, 02:07 PM
Ok, I just got a new 40x CD-RW drive and a separate DVD drive, and I was wondering what the fastest interface is to put these drives on. The specs on the drives just reads: : ATAPI-E/IDE, support up to Ultra-DMA Mode2, 33.3MB/sec. Does 33.3MB/sec=ATA 33? Please help clear this up for me. Thank you.
08-06-02, 02:11 PM
<storage> /ul'tr* D M A/ (Or "Ultra DMA", "UDMA", "Ultra-ATA", "Ultra-DMA/33") A development of the Advanced Technology Attachment specifications which gives nearly twice the maximum transfer speed of the ATA-3 standard (PIO Mode 4).
ATA-4 Extensions Ultra DMA/33 Synchronous DMA Mode maximum burst transfer rates:
Mode Cycle Time Transfer Rate ns MB/s 0 235 16 1 160 24 2 120 33
This is achieved by improving timing windows in the protocol on the ATA interface; reducing propagation delays by pipelining data transfers and transferring data in synchronous (strobed) mode.
Developed by Quantum Corporation, ATA-4 has been freely licensed to manufacturers and is supported by Intel Corporation.
<storage> (ATAPI) Part of the EIDE interface that provides additional commands to control a CD-ROM drive or magnetic tape.
<storage, standard> (ATA-2, Enhanced Integrated Drive Electronics, EIDE) A proposed (May 1996 or earlier?) standard from X3T10 (document 948D rev 3) which extends the Advanced Technology Attachment interface while maintaining compatibility with current IBM PC BIOS designs
ATA-2 provides for faster data rates, 32-bit transactions and (in some drives) DMA. Optional support for power saving modes and removable devices is also in the standard.
ATA-2 was developed by Western Digital as "Enhanced Integrated Drive Electronics" (EIDE) around 1994. Marketroids call it "Fast ATA" or "Fast ATA-2".
ATA-2 was followed by ATA-3 and ATA-4 ("Ultra DMA").<architecture> (DMA) A facility of some architectures which allows a peripheral to read and write memory without intervention by the CPU. DMA is a limited form of bus mastering.
08-06-02, 02:15 PM
Ok, right...that all makes sense...:beer: hehe...so what kind of cable do i need? let's keep it simple...thanks alot!
08-06-02, 02:17 PM
IDE Cable. But don't put both opticals on the same cable. Reduces burn speed and can cause coasters more often than not.
08-06-02, 02:19 PM
Right...so an IDE 133 cable will work? If so I'm gonna put my CD-RW and DVD on the two regular IDE interfaces on my mobo with a 133 cable (one for each) and then put the HD on one of the RAID interfaces as a regular IDE 133. Thanks again...sorry if I seem "simple minded" :D heh...
08-06-02, 02:23 PM
EIDE is backwards compatible. In a sense, Optical drives are ATA-33, so EIDE 33,66,100, or 133 cables will work.
08-06-02, 02:26 PM
OK, so i can use some older cables that my dad has at his office because the drive can only use a max of IDE 33, so getting 133 would just be waste, right?
08-06-02, 02:31 PM
Maybe. Just PMed you.:) If you run 2 hard drives in RAID, you can use them, but if not you'll need ATA-100 or better cables.
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