HP dc73 Technical Reference Guide: HP Compaq dc7800 Series Business Desktop Co - Page 31

Table 2-11, Hard Drive Specifications

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System Overview Table 2-11 Hard Drive Specifications Parameter 80 GB 160 GB Drive Size 2.5 & 3.5 in.[1] 2.5 & 3.5 in [1] Interface SATA SATA Transfer Rate 1.5 & 3.0 Gb/s [2] 1.5 & 3.0 Gb/s [2] Drive Protection System Yes Yes Support? Typical Seek Time (w/settling) Single Track Average Full Stroke 0.8 ms 9 ms 17 ms 0.8 ms 9 ms 17 ms Disk Format (logical blocks) 156,301,488 320,173,056 Rotation Speed 5400/7200/ 10K RPM [3] 5400/7200/ 10K RPM [3] Drive Fault Prediction SMART IV SMART IV NOTES: [1] USDT supports 2.5-in. drives only. [2] USDT supports 1.5 Gb/s drives only. [3] USDT supports up to 7200-RPM drives only. [4] Supported by SFF and CMT form factors only. 250 GB [4] 3.5 in SATA 3.0 Gb/s Yes 1.0 ms 11 ms 18 ms 488,397,168 7200 RPM SMART IV Technical Reference Guide www.hp.com 2-15

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Technical Reference Guide
www.hp.com
2-15
System Overview
NOTES:
[1] USDT supports 2.5-in. drives only.
[2] USDT supports 1.5 Gb/s drives only.
[3] USDT supports up to 7200-RPM drives only.
[4] Supported by SFF and CMT form factors only.
Table 2-11
Hard Drive Specifications
Parameter
80 GB
160 GB
250 GB [4]
Drive Size
2.5 & 3.5 in.[1]
2.5 & 3.5 in [1]
3.5 in
Interface
SATA
SATA
SATA
Transfer Rate
1.5 & 3.0 Gb/s [2]
1.5 & 3.0 Gb/s [2]
3.0 Gb/s
Drive Protection System
Support?
Yes
Yes
Yes
Typical Seek Time (w/settling)
Single Track
Average
Full Stroke
0.8 ms
9 ms
17 ms
0.8 ms
9 ms
17 ms
1.0 ms
11 ms
18 ms
Disk Format (logical blocks)
156,301,488
320,173,056
488,397,168
Rotation Speed
5400/7200/
10K RPM [3]
5400/7200/
10K RPM [3]
7200 RPM
Drive Fault Prediction
SMART IV
SMART IV
SMART IV