Corsair Obsidian 750D

Darksaber · Oct 31, 2013

The Obsidian 750D aims to fill the compact full-tower chassis spot in the updated Obsidian family. With the 900D taking the top and the 350D firmly situated in the mid-tower segment, the 750D has a price tag to match its size, but will it be able to deliver everything to warrant the Obsidian name?

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EzioAs · Dec 17, 2013

This is definitely what I'll be getting 1-2 months later. Much better than the 650D at a lower price. It's a shame Corsair didn't stick with the quick release side panel mechanism though.

newtekie1 · Dec 17, 2013

And I just bought a 650D.

Phobia9651 · Dec 17, 2013

How would you rate this case compared to the Nanoxia Deep Silence 5 and Fractal Design Arc XL?
Weird that Corsair didn't use rubber padding/standoffs for the PSU btw.

thebluebumblebee · Dec 17, 2013

I wish terms actually meant something. This case is called a "compact full-tower chassis" at 21.5" x 9.3" x 22". The Antec P280 is called a "Super Mid-Tower" at 20.7” x 9.1” x 22.1”. Sure looks like Corsair got it right though. The P280 can be had for half the price.

Darksaber, a suggestion. A case this large is hard to imagine. Would you pick out a case that most of us could relate to, and take comparison pictures, not only for this case but for all of your case reviews?

Assimilator · Dec 17, 2013

Page 5, "Even gleaning parts of installed drives doesn't diminish the view..." - should be "gleaming" I believe.

I like the look of this case and its features, only have 2 questions:

1. How secure are the 2.5" SSD trays when populated? I have read other reviews that say they are a bit loose.
2. Would there be room for a push+pull setup with a 240mm+ radiator in the roof?

MxPhenom 216 · Dec 17, 2013

Um, DarkSaber you might want to reconsider this statement.

Bumps instead of proper spacers for motherboard

No external 3.5" drive

Hard-drive cages cannot be hung off the optical-drive cage

Using a long radiator will block a 5.25" bay

A filled 5.25" bay disturbs the looks of the front

Im currently doing this with my 750D in the building im working on.

Nabarun · Dec 18, 2013

Nobody with the right state of mind would use an air cooler with this case. Darksaber really needs to get some rads for his reviews. Anybody who wants to spend so much money on a case like this doesn't need to be taught how to install a hdd/dvd/psu. Those things should be replaced by how rads of various size/thickness fit in different locations. The most important bit is the space between the top of the motherboard and the roof.

MxPhenom 216 · Dec 18, 2013

Nabarun said:
Nobody with the right state of mind would use an air cooler with this case. Darksaber really needs to get some rads for his reviews. Anybody who wants to spend so much money on a case like this doesn't need to be taught how to install a hdd/dvd/psu. Those things should be replaced by how rads of various size/thickness fit in different locations. The most important bit is the space between the top of the motherboard and the roof.

Case is fine for air. Now if you get a 900D and use air cooling, you need to re-evaluate your life.

Nabarun · Dec 18, 2013

900D is just an extravaganza. The 750D is particularly designed for wc in a practical form factor.

haswrong · Dec 18, 2013

the case looks very appealing when empty, but when you put things in it, i think it looks rather ugly, and the bumpers, bleh, and the legs from the front panel must be susceptible to breaking. i think i need a thinner one so that the dvd mechanics doesnt look so small and disruptive in the front panel. too bad many of lian-li or nanoxia deep silence have usb ports heading up so its collecting dust and looking weird also.

Vlada011 · Dec 22, 2013

About taste don't worth talking... This is without doubt best case for under 200$ with Obsidian 650D.
Advantage of Obsidian 650D is aluminum side panel, and easy opening doors.
Advantage of Obsidian 750D is supporting all kind of motherboards(XL-ATX, HPTX, E-ATX),
triple radiator on top, space for radiators on floor, nice cages for SSD and front space for radiators or two fans, better I/O front panel with Internal USB 3.0 support.
I think CORSAIR made 750D for more people not only who can pay over 220-250$.
They could use aluminum but that increase price on close to 300$ if you make full aluminium or little lover if you use steal construction.
Maybe is door mechanism to visible and big for CORSAIR taste and they want to avoid that this time, but they could make something on back and with only one button to open side panel.

Nabarun · Dec 22, 2013

The 750D is MUCH more expensive than the 650D here in India. It's not in stock yet, but the distributor gave me the price estimate.

Vlada011 · Dec 22, 2013

When no other option than retailer do what they want.
I think it's about 40$ cheaper on CORSAIR site.

Hood · Dec 22, 2013

Nabarun said:
Nobody with the right state of mind would use an air cooler with this case. Darksaber really needs to get some rads for his reviews. Anybody who wants to spend so much money on a case like this doesn't need to be taught how to install a hdd/dvd/psu. Those things should be replaced by how rads of various size/thickness fit in different locations. The most important bit is the space between the top of the motherboard and the roof.

I agree completely with you; most cases barely have room for fans up top without interfering with motherboard components, much less radiators. It's always the first thing I check when considering a new case, and I've taken a pass on many otherwise great cases for this reason alone. Most of them also neglect to offset the rad mounting holes away from the board side, preferring aesthetic symmetry over function.

Vlada011 · Dec 22, 2013

You don't need to use watercooling custom loop.
Enoghe is big motherboard as SR-2 or with 2xH100 because Dual CPU one on top and other on floor or
front panel and 2 graphic cards, sound card, 2-3 HDD and SSDx2 with fan controller and few fans and case is full.

WarEagleAU · Dec 24, 2013

Excellent review as always DS. Nice to see Corsair bringing their Obsidian cases down in price. I have loved the original 800D and the new 900D but like the Cosmos Cases they've been extremely expensive. Nice to see ample cable routing although I too am not a fan of the bumps.

Ravenas · Oct 21, 2014

I'm sorry but does this case support large radiators inside on top?

thebluebumblebee · Oct 21, 2014

Ravenas said:
I'm sorry but does this case support large radiators inside on top?

check out post #7

MxPhenom 216 · Oct 21, 2014

Ravenas said:
I'm sorry but does this case support large radiators inside on top?

Yep, I have a 360 in the top of mine. Like @thebluebumblebee said check post #7, that is my build. You can also take the 5.25" bay out and put another 360 in the front. The top one will have to be a thinner rad and then the front one can be thick.

Ravenas · Oct 22, 2014

Thanks gentlemen. I am going to go back to my 8350 until I get this case. I can't control the temperatures on my 9590 with my current case/radiator.

System Name	Meshlicious Monster
Processor	Intel Core i5-10600T
Motherboard	MSI Z490I Unify
Cooling	NZXT Kraken Z53 with 2x Noctua Redux 1300 RPM PWM fans
Memory	ADATA 16 GB 3200 Mhz DDR4
Video Card(s)	MSI GeForce RTX 3070 Gaming X Trio
Storage	TeamGroup 1TB NVMe SSD
Display(s)	Asus ProArt 27" 1440P, 75Hz
Case	ssupd Meshlicious with mesh side panels
Power Supply	Fractal Design Ion 660 W Platinum ATX
Mouse	Corsair Dark Core RGB Pro Wireless
Keyboard	Microsoft Sidewinder X4 Keyboard
Software	Windows 10 Home

System Name	Cypher-C4
Processor	Ryzen 9 5900X
Motherboard	MSI B450 Tomahawk Max
Cooling	Deepcool AK620
Memory	32GB Crucial Ballistix Elite 3200MHz
Video Card(s)	Palit RTX 3060 Ti Dual
Storage	250GB Crucial MX500 + 2TB Crucial MX500 + 2TB WD Black + 4TB Toshiba + 1TB Samsung F3
Display(s)	Acer XV272UP
Case	Corsair Obsidian 750D
Audio Device(s)	Behringher UMC202HD Audio Interface + Mackie HM-4 + Sennheiser HD 280 Pro + Shure SM58
Power Supply	Corsair HX750i
Mouse	Steelseries Rival 310
Keyboard	Keychron K8 + Kailh BOX Crystal Jade switches + Ducky Good in Blue keycaps
Software	Windows 10 Pro 64-bit

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
Cooling	Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory	32GB DDR4-3600
Video Card(s)	RTX 2070 Super
Storage	500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s)	Acer Nitro VG280K 4K 28"
Case	Fractal Design Define S
Audio Device(s)	Onboard is good enough for me
Power Supply	eVGA SuperNOVA 1000w G3
Software	Windows 10 Pro x64

Processor	Intel Core i5 3570k
Motherboard	MSI Z77 MPower
Cooling	Thermalright Archon
Memory	Crucial Ballistix Elite 2x4GB 1600MHz (8-8-8-24)
Video Card(s)	MSI Geforce GTX 1060 6GB Gaming X
Storage	Plextor M5 Pro 512GB; WD Caviar Green 2TB
Display(s)	2x HP ZR24w
Case	Phanteks Enthoo Pro M Special Edition Tempered Glass
Audio Device(s)	Creative Sound Blaster Z
Power Supply	Seasonic Focus GX-650
Mouse	Logitech G403 HERO
Keyboard	SteelSeries 7G
Software	Windows 10 Pro 64-bit EN

System Name	Main/DC
Processor	i7-3770K/i7-2600K
Motherboard	MSI Z77A-GD55/GA-P67A-UD4-B3
Cooling	Phanteks PH-TC14CS/H80
Memory	Crucial Ballistix Sport 16GB (2 x 8GB) LP /4GB Kingston DDR3 1600
Video Card(s)	Asus GTX 660 Ti/MSI HD7770
Storage	Crucial MX100 256GB/120GB Samsung 830 & Seagate 2TB(died)
Display(s)	Asus 24' LED/Samsung SyncMaster B1940
Case	P100/Antec P280 It's huge!
Audio Device(s)	on board
Power Supply	SeaSonic SS-660XP2/Seasonic SS-760XP2
Software	Win 7 Home Premiun 64 Bit

Corsair Obsidian 750D

Darksaber

Senior Editor & Case Reviewer

EzioAs

newtekie1

Semi-Retired Folder

Phobia9651

thebluebumblebee

Assimilator

MxPhenom 216

ASIC Engineer

Nabarun

MxPhenom 216

ASIC Engineer

Nabarun

haswrong

Vlada011

Nabarun

Vlada011

Hood

Vlada011

WarEagleAU

Bird of Prey

Ravenas

thebluebumblebee

MxPhenom 216

ASIC Engineer

Ravenas

System Name	Firelance.
Processor	Threadripper 3960X
Motherboard	ROG Strix TRX40-E Gaming
Cooling	IceGem 360 + 6x Arctic Cooling P12
Memory	8x 16GB Patriot Viper DDR4-3200 CL16
Video Card(s)	MSI GeForce RTX 4060 Ti Ventus 2X OC
Storage	2TB WD SN850X (boot), 4TB Crucial P3 (data)
Display(s)	3x AOC Q32E2N (32" 2560x1440 75Hz)
Case	Enthoo Pro II Server Edition (Closed Panel) + 6 fans
Power Supply	Fractal Design Ion+ 2 Platinum 760W
Mouse	Logitech G602
Keyboard	Razer Pro Type Ultra
Software	Windows 10 Professional x64

System Name	Ryzen Reflection
Processor	AMD Ryzen 9 5900x
Motherboard	Gigabyte X570S Aorus Master
Cooling	2x EK PE360 \| TechN AM4 AMD Block Black \| EK Quantum Vector Trinity GPU Nickel + Plexi
Memory	Teamgroup T-Force Xtreem 2x16GB B-Die 3600 @ 14-14-14-28-42-288-2T 1.45v
Video Card(s)	Zotac AMP HoloBlack RTX 3080Ti 12G \| 950mV 1950Mhz
Storage	WD SN850 500GB (OS) \| Samsung 980 Pro 1TB (Games_1) \| Samsung 970 Evo 1TB (Games_2)
Display(s)	Asus XG27AQM 240Hz G-Sync Fast-IPS \| Gigabyte M27Q-P 165Hz 1440P IPS \| Asus 24" IPS (portrait mode)
Case	Lian Li PC-011D XL \| Custom cables by Cablemodz
Audio Device(s)	FiiO K7 \| Sennheiser HD650 + Beyerdynamic FOX Mic
Power Supply	Seasonic Prime Ultra Platinum 850
Mouse	Razer Viper v2 Pro
Keyboard	Corsair K65 Plus 75% Wireless - USB Mode
Software	Windows 11 Pro 64-Bit

System Name	barely hangin on...
Processor	Intel I5 4670K @stock
Motherboard	Asus H81m-cs (nothing else available now)
Cooling	CM Hyper 212X (in push-pull)
Memory	16GB Corsair Vengeance Dual Channel 1866MHz
Video Card(s)	Asus RX 580 4GB Dual
Storage	WD Blue 1TB, WD Black 2TB, Samsung 850 Evo 250GB
Display(s)	Acer KG241QP 144Hz
Case	Cooler Master CM 690 III (Transparent side panel) - illuminated with NZXT HUE RGB
Audio Device(s)	FiiO E10K>Boom 3D>ATH M50/Samson SR850/HD599SE
Power Supply	Corsair RM 850
Mouse	Redragon M901 PERDITION 16400 DPI Laser Gaming Mouse
Keyboard	HyperX Alloy FPS Mechanical Gaming Keyboard (Cherry MX Brown)
Software	7-64bit MBR, 10-64bit UEFI (Not Multi-boot), VBox guests...

Processor	Core i5-3350P @3.5GHz
Motherboard	MSI Z77MA-G45 (uATX)
Cooling	Stock Intel
Memory	2x4GB Crucial Ballistix Tactical DDR3 1600
Video Card(s)	\|Ξ \/ G /\ GeForce GTX 670 FTW+ 4GB w/Backplate, Part Number: 04G-P4-3673-KR, ASIC 68.5%
Storage	some cheap seagates and one wd green
Display(s)	Dell UltraSharp U2412M
Case	some cheap old eurocase, black, with integrated cheap lit lcd for basic monitoring
Audio Device(s)	Realtek ALC892
Power Supply	Enermax Triathlor 550W ETA550AWT bronze, non-modular, airflow audible over 300W power draw
Mouse	PMSG1G
Keyboard	oldschool membrane Keytronic 104 Key PS/2 (big enter, right part of right shift broken into "\" key)

System Name	Intel® X99 Wellsburg
Processor	Intel® Core™ i7-5820K - 4.5GHz
Motherboard	ASUS Rampage V E10 (1801)
Cooling	EK RGB Monoblock + EK XRES D5 Revo Glass PWM
Memory	CMD16GX4M4A2666C15
Video Card(s)	ASUS GTX1080Ti Poseidon
Storage	Samsung 970 EVO PLUS 1TB /850 EVO 1TB / WD Black 2TB
Display(s)	Samsung P2450H
Case	Lian Li PC-O11 WXC
Audio Device(s)	CREATIVE Sound Blaster ZxR
Power Supply	EVGA 1200 P2 Platinum
Mouse	Logitech G900 / SS QCK
Keyboard	Deck 87 Francium Pro
Software	Windows 10 Pro x64

System Name	DEVIL'S ABYSS
Processor	i7-4790K@4.6 GHz
Motherboard	Asus Z97-Deluxe
Cooling	Corsair H110 (2 x 140mm)(3 x 140mm case fans)
Memory	16GB Adata XPG V2 2400MHz
Video Card(s)	EVGA 780 Ti Classified
Storage	Intel 750 Series 400GB (AIC), Plextor M6e 256GB (M.2), 13 TB storage
Display(s)	Crossover 27QW (27"@ 2560x1440)
Case	Corsair Obsidian 750D Airflow
Audio Device(s)	Realtek ALC1150
Power Supply	Cooler Master V1000
Mouse	Ttsports Talon Blu
Keyboard	Logitech G510
Software	Windows 10 Pro x64 version 1803
Benchmark Scores	Passmark CPU score = 13080

System Name	Pandemic 2020
Processor	AMD Ryzen 5 "Gen 2" 2600X
Motherboard	AsRock X470 Killer Promontory
Cooling	CoolerMaster 240 RGB Master Cooler (Newegg Eggxpert)
Memory	32 GB Geil EVO Portenza DDR4 3200 MHz
Video Card(s)	ASUS Radeon RX 580 DirectX 12 DUAL-RX580-O8G 8GB 256-Bit GDDR5 HDCP Ready CrossFireX Support Video C
Storage	WD 250 M.2, Corsair P500 M.2, OCZ Trion 500, WD Black 1TB, Assorted others.
Display(s)	ASUS MG24UQ Gaming Monitor - 23.6" 4K UHD (3840x2160) , IPS, Adaptive Sync, DisplayWidget
Case	Fractal Define R6 C
Audio Device(s)	Realtek 5.1 Onboard
Power Supply	Corsair RMX 850 Platinum PSU (Newegg Eggxpert)
Mouse	Razer Death Adder
Keyboard	Corsair K95 Mechanical & Corsair K65 Wired, Wireless, Bluetooth)
Software	Windows 10 Pro x64

System Name	AM5
Processor	AMD Ryzen R9 7950X
Motherboard	Asrock X670E Taichi
Cooling	EK AIO Basic 360
Memory	Corsair Vengeance DDR5 5600 64 Gb - XMP1 Profile
Video Card(s)	AMD Reference 7900 XTX 24 Gb
Storage	Crucial Gen 5 1 TB, Samsung Gen 4 980 1 TB / Samsung 8TB SSD
Display(s)	Samsung 34" 240hz 4K
Case	Fractal Define R7
Power Supply	Seasonic PRIME PX-1300, 1300W 80+ Platinum, Full Modular