What's the difference between ide 33/66 mhz and 100/133 mhz cables?

[space_ship_earth]

apart that the ide 100/133 mhz cables have round cords.

thanks

 

[JT]

apart that the ide 100/133 mhz cables have round cords.

thanks

ADA 33 cables have 40 wires. ATA 66/100/133 have 80 wires, the extra 40
being ground wires added for sheilding. Round cables are not automatically
100/133. Most manufacture supplied 66/100/133 cables are flat.

JT

 

[space_ship_earth]

ADA 33 cables have 40 wires. ATA 66/100/133 have 80 wires, the extra 40
being ground wires added for sheilding.

So how is the extra speed achieved?

Round cables are not automatically
100/133. Most manufacture supplied 66/100/133 cables are flat.

Is there a way of telling by looking or otherwise which type of hdd
cable it is?

thanks

 

[~misfit~]

So how is the extra speed achieved?

By having an extra wire between each signal wire to eliminate cross-talk.

Is there a way of telling by looking or otherwise which type of hdd
cable it is?

Yes. The ATA66/100/133 cables have 80 conductors (wires) as opposed to 40 in
ATA33 cables. Count 'em if you have to but it's quite obvious just from
looking at them. The round ones could be a bit more difficult but I would
pretty much assume all round ones are ATA66/100/133, they often have a
twisted pair of wires for each signal wire instead of the ground wire being
in between the signal wires.

 

[space_ship_earth]

By looking at the ata133 cable it appears that there is a cable going
to each one of the 39 holes. In the ata33 there is one wire going to
both of the holes.

thanks

 

[DaveW]

33/66 have 40 wires; 100/133 have 80 wires.

 

[JT]

33/66 have 40 wires; 100/133 have 80 wires.

66 was the first with 80 wires.

JT