The ASRock 939S56-M is compatible with Intel processors with the Socket 939 socket.
It has maximum RAM and conforms to the Micro-ATX form factor standard.
|CPU Socket||Socket 939||Crossfire Support||1 graphics cards|
|CPU Compatible Make||Intel||Onboard GPU||no|
|CPU Chipset||756||PCI Slots|
|Form Factor||Micro-ATX||SATA 1.0||2|
|Memory Channels||2||SATA 2.0||0|
|Compatible RAM Speeds||SATA 3.0||0|
|USB 2.0 Internal Slots||4||RAID Support||yes|
|USB 2.0 Rear||4||Internal I/O|
|Graphics Card Interface||PCIe v2.x||Back Panel I/O|
|SLI Support||1 graphics cards|
The ASRock 939S56-M uses the Intel Socket 939 CPU socket. Any compatible Intel CPU will have the same socket entry.
The Micro-ATX ASRock 939S56-M should fit into all ATX cases, but its smaller size allows you to downsize your system build as a whole. Its size comes at the cost of features, so there are likely to be far fewer connections and expansion options available than in a larger motherboard.
The ASRock 939S56-M does not support onboard graphics. Any system build that uses this motherboard therefore requires a separate graphics card, or a processor that has a GPU on the same die, such as AMD APU processors. There are 1 PCIe x16 slots on this motherboard. This means it is perfectly capable of accommodating the latest graphics cards, although it is important to try and use a graphics card with the same graphics card interface of PCIe v2.x, as anything below will not reach the motherboard's potential, and anything above will have its performance slashed to the bandwidth maximum of the ASRock 939S56-M's PCIe v2.x. The ASRock 939S56-M does not support multiple graphics cards via Nvidia SLI or AMD Crossfire.
The ASRock 939S56-M has 8 USB 2.0 slots but no USB 3.0 slots. While USB 3.0 slots are so far by no means necessary, and with a plethora of USB 2.0 peripherals to choose from, the USB functionality on this motherboard should be fine. If planning on building a new system, a motherboard with USB 3.0 is likely to have a longer life cycle, however.