Question 1

I've been out of the tech world on computers for a few years. But i was wondering if this supported 64bit 7?

Accepted Answer

Yes it does. 64 bit only refers to how much ram the systen can use.

Question 2

Does this have a FM2 socket? I looked at the specs and I couldn't find it.

Accepted Answer

No. FM2 is an AMD processor socket. This motherboard is an Intel processor socket. Not only are they the wrong socket type, they're also two different manufacturers. It would never work. If you want to look for an FM2 motherboard, I suggest you look at the motherboards in the AMD section. They will do what you need them to do.

Question 3

Can this motherboard work with a Intel i3-2128 3.30 GHz?

Accepted Answer

I think you mean Intel i3-2120. There is no "2128." And yes. the 2120 is LGA1155 socket compatible. Though why you'd spend $125 on that is beyond me. You be better off spending a little bit more and getting:"Intel Core i3-3225 Ivy Bridge 3.3GHz LGA 1155 55W Dual-Core Desktop Processor Intel HD Graphics 4000 BX80637I33225" (Copy and paste that into the newegg search bar. Couldn't give you a direct link.)

In the long run, it's more cost effective, and -much- more powerful. Don't buy low because it's $15 cheaper. Buy the ivy board because it's only $15 more.

Question 4

Can you use a triple display setup with this products video output?

Accepted Answer

Only two

Question 5

Will it work on Window 8 and R7 260x video card?

Accepted Answer

I can say it will support Windows 8, the machine I built with this motherboard is currently running it.

I don't have the R7 260x. However, from the specs I'm seeing between the two, it does seem like it will run. 
I did a search and it looks like that video card may have some driver issues with Windows 8 in crossfire mode, so be sure to have the latest drivers for it.

Question 6

Can the HDMI port also output audio? This is very important to my setup.

Accepted Answer

This was meant only as an aid to possibly buyin this board by a friend.   He bought a different board.  Sorry...

Question 7

a) Does this motherboard support memory speeds of 1600 Mhz for Sandy Bridge (Intel second generation) processors (such as the i5-2400) which natively only support 1333Mhz?
b) Does this motherboard support ACHI for solid state drives (SSDs)?

Accepted Answer

Go to mother board stats and check what is an approved processor. And yea it should support ACHI.

Question 8

Just bought this Motherboard, do I have reinstall Window7 to use it??????????
Will it work on R7 260X?

Accepted Answer

AND does i7 2600 work on this double check.? I'm newb, Thanks .

Brand	BIOSTAR
Model	B75MU3+

CPU Socket Type	LGA 1155
CPU Type	Core i7 / i5 / i3 (LGA1155)

Number of Memory Slots	4x240pin
Memory Standard	DDR3 1600/1333/1066
Maximum Memory Supported	32GB
Channel Supported	Dual Channel

PCI Express 3.0 x16	1 x PCI Express 3.0 x16
PCI Express x1	1 x PCI Express x1
PCI Slots	2 x PCI Slots

Audio Chipset	Realtek ALC662
Audio Channels	6 Channels

Meet Your Seller

BIOSTAR B75MU3+ LGA 1155 Intel B75 HDMI USB 3.0 Micro ATX Intel Motherboard

Used - Very Good

Learn more about the Biostar B75MU3+

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Warranty, Returns, And Additional Information

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Back I/O Ports	1 x HDMI / 1 x PS/2 Keyboard/Mouse Combo / 2 x USB 2.0/1.1 / 2 x USB 3.0
PS/2	1
Video Ports	D-Sub + DVI
HDMI	1 x HDMI
USB 3.0	2 x USB 3.0
USB 1.1/2.0	2 x USB 2.0
Audio Ports	3 Ports

Onboard USB	2 x USB 3.0 + 4 x USB 2.0
Other Connectors	1 x Printer Header 1 x Front Audio Header 1 x Front Panel Header 1 x S/PDIF-OUT Header 1 x CPU FAN Header 1 x System FAN Header 1 x Serial Header 1 x CIR Header

Form Factor	Micro ATX
Dimensions (W x L)	9.6" x 8.66"
Power Pin	24 Pin

Onboard LAN
LAN Chipset	Realtek 8111F
Max LAN Speed	1Gbps

Item#: 9SIAWFGK9J5690