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ASUS B85M-E/CSM LGA 1150 Intel B85 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard

Ships from United States.

Sold by Ulterior a-seller and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
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  • Corporate Stable Model (CSM)
  • Supports Intel SBA
  • Redesigned UEFI and new Ai Suite 3
  • Network iControl
  • Legacy COM/LPT headers

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews



Based on the latest Intel B85 chipset, the ASUS B85M-E/CSM brings the power of an Intel 4th generation Core processor in a uATX form factor. It guarantees uncompromised flexibility and expandability with one PCIe 3.0 x16 slot, one PCIe 2.0 x16 slot, four SATA 6Gbp/s ports, four USB 3.0 ports and 8-channel audio. ASUS's exclusive USB 3.0 Boost enables faster data transmission, while Fan Xpert 2 technology delivers the most customizable fan controls to achieve the best balance of cooling performance and noise level. Additional features include Network iControl, for real-time bandwidth control, and ASUS GPU Boost, for iGPU overclock. The B85M-E/CSM presents a new premium gold color scheme, symbolizing an insistence on delivering the highest standards of innovation, performance, and reliability.

The B85M-E/CSM is part of ASUS's renowned Corporate Stable Model (CSM) Series. ASUS CSM products are guaranteed to have a longer lifespan, and are available for purchase for at least one year from the date the product has been declared CSM. ASUS CSM products feature Advance Swap service options, allowing overnight cross-shipment of your defective unit in order to minimize downtime. Motherboard and graphics card products feature a one-way cross-shipment option during the first year of ownership.


ASUS Exclusive USB 3.0 Boost --1.3X Faster than Traditional USB 3.0
With USB 3.0 Boost technology, USB transfer speeds are significantly increased up to 1.3x, enhancing an already impressive USB 3.0 transfer rate. ASUS software automatically accelerates data speeds for compatible USB 3.0 peripherals without the need for any further user configuration.
Network iControl--Real-time Network Bandwidth Control
With a single-click on/off button, the application currently in use has its data and network bandwidth prioritized over other programs. In addition, you can prioritize your favorite software easily by configuring profiles through the intuitive user interface. Within the profile, programs can be pre-scheduled to run in a specific time period to avoid network congestion and long-waits on downloads. Auto PPPoE network connection provides a one-step setup for enhanced online convenience. Overall, it's an intuitive network bandwidth control center.
Superior Components, Excellent Quality and Durability

100% High-Quality Solid Capacitors

ASUS's high-quality solid capacitors assure a 5,000-hour lifespan (5K Hrs. @ 105°C; 50K Hrs. @ 65°C) – equivalent to 2.5 times longer than traditional capacitors. All capacitors pass testing under temperatures as high as 105 degrees, and meet Japanese industrial standards to provide excellent durability and enhanced thermal capacity.
Extra-Durable Stainless Steel Back I/O
The ASUS Motherboard's back I/O panels are made from strong and corrosion-resistant stainless steel, which is bonded with a thin layer of chromium oxide to enhance its anti-corrosion properties. That is why ASUS stainless steel back I/O panels have a usage life three times longer compared to ordinary panels.
Windows 8 Ready — One-Stop Access to Innovative ASUS Features
With hardware driver compatibility tested and assured, ASUS provides a complete solution for Windows 8 support. Users can now experience the next generation operating system on ASUS hardware, and can rest assured that they can easily upgrade once the final driver versions are released — all without any compatibility issues!


Learn more about the ASUS B85M-E/CSM

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Shipped the wrong B85 Board, Still a B85M-E but not the CSM variant 9/24/2018 6:21:40 AM

Pros: Good replacement for my old damage board, allows a bit more expandability than my previous, and enough usb ports compared to my last board

Cons: I didn't really have any cons besides FINALLY noticing I've been sent the wrong board, it has the correct part number stickered to it but the board and the box do not match those numbers

Overall Review: I would recommend the B85M-E if you can find it, but I wish I noticed that I didn't get the board I paid for sooner

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Quality Board So Far 9/27/2017 10:54:41 PM

Pros: I've used Asus products in builds before, so I felt good getting this one to repair an HP Pavilion 500-267c workstation where I work. This is actually the second version of the B85 series boards I bought to do this repair, as the first one I bought was suspected to be faulty because the front USB 3.0 ports on the case didn't work. I sent it back and got this one. Turns out the problem persisted with this board, so I ruled out the board being defective. That aside, this is a nice board for cheap. All the other boards out there with the same features were at least $20 more expensive. I got this particular chipset because it has the USB 3.0 header. The CSM Corporate Stable Model is designed for hard/continuous use in workstation PC's. The caps are all 5k premium solid, it has ESD, overcurrent, and short circuit protection built-in, good VRM's, and the back IO's are all stainless steel, same with the IO shield (which is also nicely padded and insulated). Expansion slots include a legacy PCI sot, a PCI express 1x, two PCI express x16 (one 3.0, the other 2.0 running at 4x) and CrossFireX capable, and good expansion options with a serial/RS-232 header, parallel/LPT header. Part of the standard B85 you get 6 SATA ports, two 3 GB/s and four 6 GB/s, 8 USB 2.0 (4 out back, 4 inside), 4 USB 3.0 (2 out back, 2 on the header), gigabit LAN, 7 channel audio, PS/2 ports, and native support for 3 monitors with DVI-D, HDMI, display port, and D-sub out. There's 2 case fan headers, and one header is right by the main ATX connector so it makes it easy to connect the front fan to it. Nice. There are 4 DIMM slots for max of 32 GB 1600 MHz DDR3 RAM which is also nice since other board in this price only have 2 slots. It's LGA 1150, so Haswell and Broadwell will work in it up to i7. Asus' UEFI is really great, one of my favorites so far! You can tweak just about everything from the CPU, RAM, fans, etc, easy to use, and everything was laid out really nice. You also get support for Intel SBA built in. This is a good board so far, but time will tell!

Cons: Would like to see more heat-sinking around the VRM's, but nothing else to complain about

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Ownership: 1 week to 1 month
Verified Owner
3/ 5
Small than Micro ATX 7/13/2017 6:08:18 PM

Pros: - 4 SIMM memory slots
- 2 PCIe support 2.0 and 3.0

Cons: - PCIe X16 next to PCIe X1, PCIe X1 cannot be used after video card installed.
- PCIe X16 with video card, Video card is right on top of 2 SATAs jacks, very compact, you need special L shape SATA cable.
- no FIrewire
- no eSATA

Overall Review: If you need to use back your old but fast enough memory (DDR3 1600), this MB is only option.

Did you find this review helpful?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
A Great Replacement 6/4/2017 10:36:32 PM

Pros: I had a Dell Desktop that the motherboard just went south after the end of the warranty. The CPU Memory Hard Disk and DVD drive were just fine. I needed a motherboard that would fit and could use all these parts. This board took the parts and actually ran FASTER than the stock Dell OEM Intel board. This board has the Optimal setting and this gave me Performance that I needed.

Cons: Not a CON but you need to go get the Newest BIOS from the Asus website and update this board Before you load windows 10. It will make your experience a lot faster and better if you get the BIOS update done. Better CPU support, memory speed updates, UEFI support fully under Windows 10.

Overall Review: You need to know what you are doing with this board. USE A CERTIFIED Power Supply. Make sure the memory you use is compliant. If you do all this the board is ROCKING FAST AND STABLE !!!!!

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Ownership: more than 1 year
Verified Owner
5/ 5
great board for the price 2/27/2017 10:14:07 PM

Pros: i've had this since feb 2014 and it still does everything i want it to. all my parts were plug and play.

Cons: my ONLY complaint (which isn't even a complaint) is my computer has blue screened a few times, but only after i bumped it accidentally with my legs, so be gentle.

Overall Review: i'm doing this review because i just read the reviews for this and they're not all so good. as long as you know what you're doing, ie making sure all your parts fit and you're not over-demanding the hardware, you won't have a problem.

1 out of 2 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great for the price for what I needed at the time 11/13/2016 12:13:24 PM

Pros: Easy Bios setup for turbo boosting my I7 4790

Cons: DDR3 and LGA 1150, not really a con for me due to me having an lGA 1150 i7 4970 and not able to upgrade to skylarked processor.

Overall Review: My cat destroy my dell XPS 8700 Motherboard during an upgrade from i5 4440 to an i7 4790 non k (my fault) Dell wanted $200 for a new board NOT WORTH IT for an LGA 1150 chipset. So I bought this Board a 650 watt power supply and a $50 case for the same price of a refurbish Dell Board.
I do not recommend this board if your building a new system because it not ddr4 and it LGA 1150 chipset. you cant upgrade to 6 gen intel processor you stuck at fourth gen intel and below.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
1/ 5
GARBAGE - WORST ASUS MB I ever bought - 10/17/2016 3:14:33 PM

Pros: NONE ----------------------- NO BIOS

Cons: BIOS SO OLD that it would NOT WORK - With 2 different INTEL CPU's.
WHAT is WRONG with ASUS that they would UNLOAD ----- NEW MB's without EVEN UPDATING THE BIOS ???
I have used OVER 700 ASUS MB's in the past ------- and they age the industry standard.
HOWEVER ---------- They sent out this MB - with OLD BIOS ------- ONLY SOLUTION - is to send them back.

Because NOW I have TWO Brand NEW INTEL CPU's that will NOT WORK - on these boards - AND I CAN'T RETURN
Not happy.

Overall Review: If I could give them A ZERO STAR / NO STAR's ON THIS BOARD ......... I would.
I am very disappointed.
COST ME LOTS OF TIME -------- HEADACHE - and NOW MONEY ( out of my pocket and customers.)
ANYBODY want to buy some NEW INTEL CPU's for 50% ??????

1 out of 8 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
3/ 5
Bad SATA chips! 5/30/2016 7:49:01 AM

Pros: Easy to set up with UEFI BIOS. RAM worked just great. Was able to run Ubuntu Linux from RAM.

Cons: Could write to SSD and HD, but Windows 10 kept periodically giving message that the drive was locked!
Attempting to boot from SSD or HD would mostly bounce back to BIOS.
Changed SATA cables to ensure not a cable problem.

Overall Review: I plan to return this board, and buy a different ASUS board.

1 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued Customer,

Thank you for sharing your ASUS experience. We appreciate your loyalty to the ASUS brand and please accept our apologies for any inconvenience this experience has caused. If you haven't done so, kindly update your SATA driver Version Intel AHCI/RAID Driver Path for Windows Win7 32bit & Win7 64bit & Win8 32bit & Win8 64bit & Win8.1 32bit & Win8.1 64bit & Win10 64bit. If the issues persist make sure to update your UEFI to B85M-E BIOS 2307 to Improve system compatibility. If you have any technical questions, feel free to contact me at

Thank you for choosing ASUS!

Best Regards,
ASUS Customer Loyalty - US Support
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