IDE cables

[andlcs]

Oh no! Another newbie question...
>>>What is the diference btw 40pin/40conductor and 40pin/80 conductor cables?
How can I see if mine is 40 or 80 conductor cable and also in wich case I use the 40/40 or 40/80?

Thank U.

 

[HammerBot]

40 conductor cables has 40 conductors and guess what 80 conductor cables has 80 conductors They are easy to distinguish. Simply count the number of conductors. The two types are almost functionally equivalent, however, in 80 conductor cables the PDIAG- signal is not connected to the BLUE connector (the one that goes to the mobo). This makes it possible for the mobo/bios to detect whether a 40 or 80 conductor cable is used. Some systems may use this to automatically set the transfer mode. The other main difference is the addition of 40 extra ground wires interleved with the existing 40 conductors. This reduces crosstalk between wires at high frequencies.

80 conductor cables should be used for UDMA66 and above. Below you can safely use 40 conductor cables.

 

[andlcs]

thank u.

 

[lhgpoobaa]

Its in the FAQ

<b><font color=green>A computer once beat me at chess, but it was no match for me at kickboxing! :lol: </b></font color=green>

 

[elzt]

Can the 80 conductor cable be used for UDMA33 CD-ROM drive?

 

[HammerBot]

Yes, they are backwards compatible