Compaq.com - Compaq Presario 1660 Model Maintenance and Service Guide
Hard Drive
Model
Hitachi
DK238A-
43
IBM
DKLA-
24320
Fujitsu
MHF2043AT
IBM
DADA-
26480
Hitachi
DK228A-
65
Fujitsu
MHE2064AT
Capacity Per Drive
4327MB
4320MB
4340MB
6480MB
6490MB
6490MB
Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sector
8955
4
N/A
512
8944
15
63
512
8647
4
N/A
512
13424
15
63
512
8955
6
N/A
512
8647
6
N/A
512
Typical Seek Times, ms
(including settling)
Single track
Average
Full stroke
N/A
12ms
N/A
4ms
13ms
23ms
2.5ms
13ms
23ms
4ms
12ms
23ms
N/A
12ms
N/A
2.5ms
13ms
23ms
Transfer Rate
At interface
16.6MB/
sec (max)
16.6MB/
sec (max)
33.3MB/sec
(U-DMA)
16.6MB/
sec (max)
16.6MB/
sec (max)
33.3MB/sec
(U-DMA)
CD Drive
CD-ROM Drive
Model
XM-1802B
Mitsumi SR242S1
Sanyo CDR-U242-Z
Dimensions
128 x 12.7 x
129 mm
5.04 x
0.5 x
5.08 in
128 x 12.7 x
129 mm
5.04 x
0.5 x
5.08 in
128 x 12.7 x
129 mm
5.04 x
0.5 x
5.08 in
Weight
0.230kg
8.11 oz
0.27kg
9.52 oz
< 0.270kg
< 9.52 oz
Maximum Rotational Speed
24x
24x
24x
Typical Sustained Data Transfer
Rate
3600kB/sec (max)
3600kB/sec (max)
3600kB/sec
Average Random Access Time
110ms
120ms
120ms
Spin Up Time
2.7sec (max)
n/a
<10sec
Data Buffer Capacity
128kB
128kB
256kB
DVD Drive
DVD-ROM Drive
Model
Sanyo DRD-U220
Panasonic SR-8171
Toshiba SD-C2102
Dimensions
128 x 12.7
x 129 mm
5.04 x 0.5
x 5.08 in
128 x 12.7
x 127 mm
5.04 x 0.5
x 5.00 in
128 x 12.7
x 129 mm
5.04 x 0.5
x 5.08 in
Weight
< 0.280kg < 9.87 oz
0.290kg
10.2 oz
0.280kg
9.87 oz
Rotational Speed
2.4x
2.0x (max)
2.4x
Typical Sustained Data Transfer
Rate
3240KB/sec (max)
2700KB/sec (max)
1352-3268KB/sec
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NOTEBOOKS/PRESARIO%201660/spec3.html (2 of 3)6/27/2004 3:01:03 AM
