ASRock X79 Extreme3 motherboard specifications

CPU socket type:	Socket 2011
Chipset:	Intel X79
USB:	1 x USB 3.0 (front, 2 ports) 2 x USB 3.0 (backpanel) Etron EJ168A USB controller
Internal connectors:	1 x Clear CMOS switch with LED
Supported Operating System(s):	Microsoft Windows 7 Microsoft Windows 7 (64-bit) Microsoft Windows Vista Microsoft Windows Vista (64-bit) Microsoft Windows XP Microsoft Windows XP (64-bit)

NOTE: specifications are not complete

ASRock X79 Extreme3 CPU compatibility list

Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Core i7
BX80619I73820 CM8061901049606	i7-3820	3.6 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-E, 130W, Stepping M0	P1.10
BX80619I73820 CM8061901049606	i7-3820	3.6 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-E, 130W, Stepping M1	P1.30
BX80619I73930K CM8061901100802	i7-3930K	3.2 GHz, BLK 100 MHz QPI, 12 MB cache, Sandy Bridge-E, 130W, Stepping C1	P1.10
BX80619I73930K CM8061901100802	i7-3930K	3.2 GHz, BLK 100 MHz QPI, 12 MB cache, Sandy Bridge-E, 130W, Stepping C2	P1.30
BX80619I73960X CM8061907184018	i7-3960X	3.3 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-E, 130W, Stepping C1	P1.10
BX80619I73960X CM8061907184018	i7-3960X	3.3 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-E, 130W, Stepping C2	P1.30
Intel Xeon
CM8062107186502	E5-1603	2.8 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M0	P1.30
CM8062107186502	E5-1603	2.8 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M1	P1.40
CM8062107186102	E5-1607	3 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M0	P1.30
CM8062107186102	E5-1607	3 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M1	P1.40
CM8062101038606	E5-1620	3.6 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M0	P1.30
CM8062101038606	E5-1620	3.6 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M1	P1.40
CM8062101102002	E5-1650	3.2 GHz, BLK 100 MHz QPI, 12 MB cache, Sandy Bridge-EP, 130W, Stepping C1	P1.10
CM8062101102002	E5-1650	3.2 GHz, BLK 100 MHz QPI, 12 MB cache, Sandy Bridge-EP, 130W, Stepping C2	P1.40
BX80621E51660 CM8062107284111	E5-1660	3.3 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 130W, Stepping C1	P1.10
BX80621E51660 CM8062107284111	E5-1660	3.3 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 130W, Stepping C2	P1.40
BX80621E52603 CM8062100856501	E5-2603	1.8 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 80W, Stepping M0	P1.30
BX80621E52609 CM8062107186604	E5-2609	2.4 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 80W, Stepping M0	P1.30
BX80621E52620 CM8062101048401	E5-2620	2 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 95W, Stepping C2	P1.40
BX80621E52630 CM8062101038801	E5-2630	2.3 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 95W, Stepping C2	P1.40
CM8062101143202	E5-2637	3 GHz, BLK 100 MHz QPI, 5 MB cache, Sandy Bridge-EP, 80W, Stepping M1	P1.40
BX80621E52640 CM8062100856401	E5-2640	2.5 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 95W, Stepping C2	P1.40
CM8062107185605	E5-2643	3.3 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M0	P1.30
CM8062107185605	E5-2643	3.3 GHz, BLK 100 MHz QPI, 10 MB cache, Sandy Bridge-EP, 130W, Stepping M1	P1.40
BX80621E52650 CM8062100856218	E5-2650	2 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 95W, Stepping C2	P1.30
BX80621E52660 CM8062107184801	E5-2660	2.2 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 95W, Stepping C2	P1.30
BX80621E52665 CM8062101143101	E5-2665	2.4 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 115W, Stepping C2	P1.30
CM8062100854802	E5-2667	2.9 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 130W, Stepping C1	P1.10
CM8062100854802	E5-2667	2.9 GHz, BLK 100 MHz QPI, 15 MB cache, Sandy Bridge-EP, 130W, Stepping C2	P1.40
BX80621E52670 CM8062101082713	E5-2670	2.6 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 115W, Stepping C2	P1.30
BX80621E52680 CM8062107184424	E5-2680	2.7 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 130W, Stepping C1	P1.10
BX80621E52680 CM8062107184424	E5-2680	2.7 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 130W, Stepping C2	P1.30
	E5-2687W	3.1 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 150W, Stepping C1	P1.10
	E5-2687W	3.1 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 150W, Stepping C2	P1.30
BX80621E52690 CM8062101122501	E5-2690	2.9 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 135W, Stepping C1	P1.10
BX80621E52690 CM8062101122501	E5-2690	2.9 GHz, BLK 100 MHz QPI, 20 MB cache, Sandy Bridge-EP, 135W, Stepping C2	P1.30

When part numbers are not supplied by motherboard manufacturers, we use best guess approach to determine part numbers based on CPU model, frequency and features. In some cases our guess may be incorrect or incomplete. Please always verify part numbers before committing to buying the CPU.