Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Do I have to install RAM by pairs?
Document: I chose the MSI B85M-43B motherboard for my new system build because I wanted a mb that would, in conjunction with the i5 Intel processor, address 32M of RAM while supporting an i5 Intel processor. In addition, the cost was very reasonable for the B43 chipset compared to the Z87 chipsets. USB 3.0 capability was important as well since I have USB 3.0 devices. I'm currently only using 16G of RAM (2 8G DDR3 DIMMs) but can expand to 32G if needed.
Worked on first boot. No problems. Everything was labeled and easy to find. So far I have had no problems.
This is a very good MB, but It doesn't detect my old sata HDD Hitachi HDS722525VLSA80. Any help? I try almost everything
This motherboard has been working very well for me. One word of advice, bend the tab on the I/O shield at the ethernet port inwards and ease the motherboard port housings underneath. I screwed this up and ended up breaking off the tab to access the ethernet port.
I have an older Gateway system and was upset when I learned that Gateway actually disables vitualization in the bios to the degree that you cannot enable it. Therefore, I looked for a motherboard to replace it so I could run Windows 8 with Hyper V. It is working fantastically! !
Onboard graphics are entirely suitable for general usage although I do use a PCI-E video card. The USB Charging connection on the MB is a nice feature, allowing me to charge my phone with a cable from my PC whether it's active or in sleep mode. Great combination of good price and great functionality.
Whenever I turned on the windows8 features on, it posted error message.So I returned it. It might be the small compatibility problem, this is m/b and the producer should consider even such a minor problem.In my case, oc genie did not work well. Other overclock features was not satisfactory.If you are going to overclock, buy z87. With this model, overclock is possible but it is very very hard...
I'll bet that if I invest some time I can get the USB 3.0 working. For the fans, I did a 5v mod to get them spinning slower, but most people probably won't care if there fans just turn at normal speed. For the off-board bios post speaker, no big deal 99% of the time. I'd buy it again, but I'll bet that in the future better boards come out because Haswell is still brand new.
Fantastic for a budget build. System booted up without any hiccups.Some have stated that the SATA and USB 3.0 ports are mounted sideways as opposedto straight up. I purchased this board for that exact reason, it helps my cable managementin a Cooler Master N200 Micro ATX case. Loaded up Windows7 and installed the latest BIOSusing MSI Live Update utility. No complaints so far. Be aware that this board does not supportRAID at all.
This board works well for the most part.
Answer: Nope, I ran it with 1 4gb dim And 3 mixed dims. Use whatever combo you want!