Leading motherboard manufacturers have already stated that AMD FX series processors, codename Zambezi, can be installed on Socket AM3 motherboards after appropriate BIOS update. However, ASRrock claims this way to be “not stable enough to provide a reliable computing, and may result in certain effects”. Therefore, the company has presented Real Socket AM3+ motherboard line-up with explanations of its benefits.
New processor socket marked AM3b differs by having larger contact holes: 0.51 mm(AM3+) against 0.45 mm (AM3). From ASRock words, this makes CPU installation easier and reduces the risk of pin damaging. Energy control and efficiency is enchained due to faster — VID 3.4 MHz instead of 400 kHz — connection between CPU and power controller.
CPU is powered with 22% less rippled voltage which results in more stable system operation.
Socket AM3+ is expected to handle bigger current — 145 А versus 110 А of Socket AM3.
Besides, ASRock pays attention to new cooling system mounting mechanism — C.C.R. (Combo Cooler Retention Module) that is less air restrictive. This ends up in higher cooling efficiency of CPU and components around the socket. CCR is backward compatible with the old Socket AM3/AM2+ CPU coolers as well.
Finally, here is a specification table for ASRock 800 chipset based motherboards with AMD Socket AM3+: