Corsair Obsidian 250d User manual

OBSIDIAN SERIES®
OBSIDIAN SERIES®
INSTALLATION GUIDE
OBSIDIAN SERIES 250D Mini ITX PC CASE
250D

CONGRATULATIONS!
!
If you want to build a Mini ITX system
without compromising expansion,
flexibility, or performance, the Obsidian
Series 250D is your answer. Though it’s
small on the outside, the 250D has room
for standard components like a full-size
5.25" optical drive, a full-length GPU, a
240mm radiator, and even a full-size
ATX power supply.
The sleek, aluminum front fascia provides
the striking yet subtle design that
Obsidian Series cases are known for, and
a top window gives you a close-up view
of your high-performance components.
The 250D is a great choice if you want
full size performance in a small space.
Thank you for purchasing
an Obsidian Series® 250D
Mini ITX PC case.
OBSIDIAN SERIES®
250D
277mm 351.2mm
290mm
Obsidian Series® 250D
Mini ITX PC Case
with one AF120L rear
exhaust fan and one
AF140L front intake fan
Installation Guide
Accessory Kit
Maximum GPU length: ..................... 290mm
Maximum GPU
cooler height: ..........................................95mm
MBD/HDD screws Short fan screws
x16 x12
SSD/ODD screws Cable ties
x12 x4

OBSIDIAN SERIES® 250D Mini ITX PC CASEOBSIDIAN SERIES® 250D Mini ITX PC CASE
(x2) USB 3.0, Headphone/Mic, Power/Reset
Front single 200/140/120mm fan mount
change to Side dual 120mm fan mounts compatible
with 120/240mm radiator
(x1) Corsair AF120L rear exhaust fan
(x1) Corsair AF140L front intake fan
Rear dual 80mm fan mounts
Windowed top panel
F
B
D
A
G
C
E
B
D
A
C
F
G
E

OBSIDIAN SERIES® 250D Mini ITX PC CASEOBSIDIAN SERIES® 250D Mini ITX PC CASE
Vented side panels
Full-sized, dual slot GPU compatibility
Full-sized ATX PSU compatibility
Removable front and bottom low-restriction dust
filters
Dual 3.5" and 2.5" tool-free drive bays
Full-sized 5.25" optical drive bay compatible
(x2) Removable magnetic dust filters
H
H
J
I
K
M
L
N
N
H L
I
K
J
M
N

3
1
2
> Remove the six thumbscrews from the top and side panels.
> To remove the top panel, pull the panel back and lift up.
> To remove the side panel, slide the panel back.
Note: Corsair recommends removing both side panels and setting them
aside when building your system to avoid accidental damages.
Removing the top window panel and two side panels
01

1
2
1
Installing the power supply (PSU)
03
> Unscrew and remove the PSU mounting back plate.
> Slide in the PSU from the back of the case.
> Mount the PSU back plate onto the case.
> Align the holes and secure the PSU to the back plate with screws.
Note: PSU must be installed fan side facing down.
Installing the motherboard
02
> Install your motherboard’s I/O shield (see your motherboard’s manual for guidance).
> Align the motherboard with the standos in the case.
> Secure with the included screws (MBD/HDD screws).

2
3
1
2
> Slide the PCI bracket cover up by removing the thumbscrews.
> Remove the corresponding slot cover(s).
> Unscrew the optical drive bay bracket.
> Install the PCI card.
> Seat the PCI bracket cover and secure the PCI card with screws.
04 Installing the PCI-E-PCI card(s)

3
1
2
4
> Remove the front panel 5.25" drive bay cover.
> Insert the ODD into the drive bay until the tool-free latch clicks, securing the drive.
> To remove, push the tool-free tab to release the ODD drive and remove.
05 Installing a 5.25" drive/devices (ODD)

1
2
3
Installing a 3.5" HDD/ 2.5" SSD
06
> Remove the HDD/SSD backplate from the back of the case.
> Remove the tool-free 3.5" HDD or 2.5" SSD tray from the drive cage.
> Insert the HDD into the HDD tray or SSD into the SSD tray.
> Align the HDD/SSD holes with tray pins to secure.
> Insert the drive tray back into the cage.

2
3
4
1
Removing the front and bottom dust filters
07
> To remove the front panel dust filter, first remove the solid front panel by
pushing the top corners of the aluminum cover.
> The front solid panel will pop out for access to the front dust filter.
> Remove the front dust filter by pressing the arrowed tab located on the top center.
> To remove the bottom dust filter, first locate the pull out tab underneath the PSU,
then pull the bottom dust filter out.

USB 3.0
HD AUDIO
POWER SW
RESET SW POWER LED +
HDD LED POWER LED -
Installing the front I/O connectors
09
> See your motherboard’s manual for front panel header locations and pin-outs.
Attach case fan cables to motherboard headers
08
> See your motherboard’s manual for fan header locations.