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View and Download Dell OptiPlex 755 quick reference manual online. OptiPlex 755 Desktop pdf manual download.
version 1.0
7
Dell™ optiplex™ 755 technical guiDe
7
sMaLL forM factor coMputEr (sff) viEw
front view
1
USB 2.0 connectors (2)
7
power light
2
power button
8
headphone connector
3
Dell badge
9
microphone connector
4
LAN indicator light
10
3.5-inch drive bay
5
diagnostic lights
11
5.25-inch drive bay
6
hard drive activity light
1
2
3
4
5
6
8
10
11
9
7
back view
1
card slots
2
serial port
3
power connector
4
voltage selection switch
5
padlock ring
6
cover-release latch
7
parallel port
8
VGA port
1
2
5 6
3
4
8
7
system boarD components
1
internal speaker connector (INT_SPKR)
2
processor connector (CPU)
3
processor power connector (12VPOWER)
4
memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4)
5
password jumper (PSWD)
6
SATA connectors (SATA0, SATA1)
7
front-panel connector (FRONTPANEL)
8
power connector (POWER)
9
fan connector (FAN_HDD)
10
eSATA connector (eSATA)
11
internal USB connector (INT_USB)
12
RTC reset jumper (RTCRST)
13
intrusion switch connector (INTRUDER)
14
battery socket (BATTERY)
15
PCI Express x16 connector (SLOT1)
16
PCI connector (SLOT2)
17
serial connector (SERIAL2)
18
system board speaker (BEEP)
19
aux power LED (aux_LED)
20
floppy drive connector (DSKT)
21
fan connector (FAN_CPU)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
6
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version 1.0
13
Dell™ optiplex™ 755 technical guiDe
13
mt
Dt
sff
usff
Bays:
3.5-inch bay Externally Accessible
1
1*
1 (slimline)
D/bay module
3.5-inch bay Internally Accessible
2
1*
1
1
5.25-inch bay
2
1
1 (slimline)
Hard Drives Supported
1
2
2
1
1
Optical Drives Supported
2
1
1
D/bay module
Interface:
SATA
(number of connectors - includes one dedicated
eSATA on MT, DT & SFF)
5
4
3
1
Floppy/Diskette
1
1
1
eSATA
(requires additional bracket)
1
1
1
Hard Drive: Size, type, speed, RPM
80GB
2
SATA 10K RPM HDD
✓
✓
✓
✓
250GB
2
SATA 7200 RPM HDD
✓
✓
✓
✓
160GB
2
High Reliability SATA 7200 RPM HDD
✓
✓
✓
✓
160GB
2
SATA 7200 RPM HDD
✓
✓
✓
✓
80GB
2
SATA 7200 RPM HDD
✓
✓
✓
✓
RAID 0 Enhanced Performance:
(includes two matching capacity/speed hard drives)
80GB
2
SATA 10K RPM HDD
✓
✓
3
160GB
2
SATA 7200 RPM HDD
✓
✓
3
320B
2
SATA 7200 RPM HDD
✓
✓
3
500GB
2
SATA 7200 RPM HDD
✓
✓
3
RAID 1 Data Protection:
(includes two matching capacity/speed hard drives)
80GB
2
SATA 10K RPM HDD
✓
✓
250GB
2
SATA 7200 RPM HDD
✓
✓
160GB
2
SATA 7200 RPM HDD
✓
✓
80GB
2
SATA 7200 RPM HDD
✓
✓
DrivEs anD rEMovabLE storagE
1
This only pertains to drives physically contained within the chassis and does not refer to HDDs attached via eSATA (including port multiplier), USB or optional 1394.
2
For hard drives, GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.
3
RAID 1 in DT chassis restricted to Western Digital and Samsung HDDs.
* Card length can be longer than standard Half-Length Card but cannot be a Full-Length Card.
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