Joel wrote: <snip> >>Over here i have two machines . One is a Pentium 166 MMX machine and >>the other one is an AMD Athlon XP 2700+ . Both were build by combining >>parts not as a computer of this or the other brand . >> All i know is this . The 166 MMX CPU machine is using non UDMA >>cabling and most probably non Cable Select cables . > > > That site described some clues you could use to figure out the old > cables. The story of the missing pin maybe ? . If you look the hard disk connector you will notice that one pin is missing . > > One odd thing that it pointed out was that the pre-UltraDMA CS cables > put the master in the middle of the cable, so you pretty much had to > hang two drives on it in order to properly terminate the cable. Yeap i always considered the top to be the master . > If that works without generating random data errors under load, Being a home user i don't generally put much load to the hard disks , so maybe i don't cross the limit that would bring the errors on surface. I would guess the cable is not CS. Of course, I could be guessing wrong. Don't worry about that . I can't seperate the Cable Select Cable from the Non-Cable Select Cable myself . So i might be wrong myself . I don't have much hands-on with ATA/IDE hardware. One problem with the "if it > works" approach, you may not be running something that will make the > errors obvious, so you may some time down the road find valuable data > gone awol. Acknowledged and agreed. The odd thing is that when this happens i might not understand that the problem was caused by the jumper settings . > > Those pages gave enough information that, if you know how to use a > multimeter, you should be able to test it for CS wiring. O.K. Well am not an expert but i can measure a resistance quite well . >> In the Athlon XP 2700+ i configured the drives as Master and Slave ( >>this one >>has UDMA Cables , am unable to identify them as Cable Select ones or not >>) because >>that was the working recipe i knew . > > > Blue connector on one end, gray in the middle, black on the other. I see many black connectors from here . I will recheck when the computer is closed . > If you do, be sure to put the master on the end (black), and not in the > middle (gray). Well i will have to recheck how things are , when the computer is closed . The standard says it should allow master in the middle if > you strap the master and slave selects, but I'm betting manufacturers > are not testing their designs (maybe even not sample-testing their > products) for anything but master on the end. I wouldn't love to take the risk either. > GMT+9 and a lousy MSWindowbox. Greece and a FC1/Windows XP box ( am dualbooting , XP is for watching TV linux for the other things ) . I'm lazy and posting with a MUA called Becky for the very least it has a nice name . that works very nicely in the Japanese environment. It's MSWxxx > only, but at least it doesn't try to run attachments for you. > > >>for the very usefull information on Pin 28 . >>I wasn't aware of such information . I bookmarked also the pcguide.com >>site . > > > Seems to be a good site for this kind of information. I was glad to find > it, too. Greetings to the Country of the Rising Sun . May it never stops rising ( if it could understand how bad we behave it would certainly do so but .. )