Compaq Deskpro 2000 Compaq Deskpro 2000 Series of Personal Computers Pentium P - Page 229

Table C-2, IDE Cable Transfer Rates, Number of Drives, Conductor IDE Cable, Length, Primary, Secondary

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In order to take full advantage of the higher transfer rates, the standard 40-conductor cable must be replaced with an optional 80-conductor cable. The Compaq Deskpro 2000 Series of Personal Computers will support up to four mass storage devices. The following table shows the transfer rates available with the various combinations of devices in combination with the 40-conductor cable and with the 80-conductor cable: Table C-2 IDE Cable Transfer Rates Number of Drives 40-Conductor IDE Cable, Length* 80-Conductor IDE Cable**, Length > 14" Primary Secondary Primary Controller Mode/Speed Secondary Controller Mode/Speed Primary Controller Mode/Speed Secondary Controller Mode/Speed 1 0 2 / 33 MB/s /  2 / 33 MB/s /  2 0 1 / 25 MB/s /  2 / 33 MB/s /  1 1 2 / 33 MB/s 2 / 33 MB/s 2 / 33 MB/s 2 / 33 MB/s 2 1 1 / 25 MB/s 2 / 33 MB/s 2 / 33 MB/s 2 / 33 MB/s 1 2 2 / 33 MB/s 1 / 25 MB/s 2 / 33 MB/s 2 / 33 MB/s 2 2 1 / 25 MB/s 1 / 25 MB/s 2 / 33 MB/s 2 / 33 MB/s *With 1 drive ≤ 14"; with 2 drives ≤ 18". **Ground-signal-ground (GSG) architecture cable. Compaq Deskpro 2000 Series of Personal Computers C-3

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Compaq Deskpro 2000 Series of Personal Computers
C
-3
In order to take full advantage of the higher transfer rates, the standard 40-conductor cable must be
replaced with an optional 80-conductor cable. The Compaq Deskpro 2000 Series of Personal
Computers will support up to four mass storage devices. The following table shows the transfer rates
available with the various combinations of devices in combination with the 40-conductor cable and
with the 80-conductor cable:
Table C-2
IDE Cable Transfer Rates
Number of Drives
40-Conductor IDE Cable, Length*
80-Conductor IDE Cable**, Length > 14”
Primary
Secondary
Primary
Controller
Mode/Speed
Secondary
Controller
Mode/Speed
Primary
Controller
Mode/Speed
Secondary
Controller
Mode/Speed
1
0
2
/ 33
MB/s
/
2
/ 33
MB/s
/
2
0
1
/ 25
MB/s
/
2
/ 33
MB/s
/
1
1
2
/ 33
MB/s
2
/ 33
MB/s
2
/ 33
MB/s
2
/ 33
MB/s
2
1
1
/ 25
MB/s
2
/ 33
MB/s
2
/ 33
MB/s
2
/ 33
MB/s
1
2
2
/ 33
MB/s
1
/ 25
MB/s
2
/ 33
MB/s
2
/ 33
MB/s
2
2
1
/ 25
MB/s
1
/ 25
MB/s
2
/ 33
MB/s
2
/ 33
MB/s
*With 1 drive
≤
14”; with 2 drives
≤
18”.
**Ground-signal-ground (GSG) architecture cable.