ASUS P7P55 LX motherboard specifications

Form factor:	ATX 12" x 8.6" / 30.5 cm x 21.8 cm
CPU socket type:	Socket 1156
Chipset:	Intel P55 Express
Motherboard features:	CrashFree BIOS 3 EPU EZ DIY EZ Flash 2 Express Gate Fan Xpert Multi-language BIOS MyLogo 2 O.C. Profile Quiet Thermal Solution
Overclocking features:	CPU Parameter Recall Overclocking Protection Precision Tweaker Stepless Frequency Selection
Memory:	Dual-channel
Multi-GPU support:	ATI CrossFireX - 4 GPUs
Integrated Audio:	8-channel HD audio VIA VT1708S Audio codec
BIOS:	AMI BIOS 16 MB Flash
Expansion slots:	PCI x 3
Internal connectors:	CPU Fan x 1 Front panel audio x 1 IDE x 1 Power Fan x 1 SATA x 6 Serial x 1
Rear panel ports:	8-channel Audio LAN RJ45 x 1 PS/2 Keyboard x 1 PS/2 mouse x 1 S/PDIF out (Optical) x 1 USB 2.0/1.1 x 8
Included accessories:	I/O Shield x 1 SATA cable(s) x 2 UltraDMA 133/100/66 cable(s) x 1 User manual x 1

NOTE: specifications are not complete

ASUS P7P55 LX CPU compatibility list

Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Core i3
BX80616I3530 BXC80616I3530 CM80616003180AG	i3-530	2.93G,L2:4M, IGPU,rev.C2,73W	0505	Any
BX80616I3530 BXC80616I3530 CM80616003180AG	i3-530	2.93G,L2:4M, IGPU,rev.K0,73W	1002	Any
BX80616I3540 BXC80616I3540 CM80616003060AE	i3-540	3.06G,L2:4M,IGPU, rev.C2,73W	0505	Any
BX80616I3540 BXC80616I3540 CM80616003060AE	i3-540	3.06G,L2:4M,IGPU, rev.K0,73W	1002	Any
BX80616I3550 BXC80616I3550 CM80616003174AJ	i3-550	3.2G,L2:4M, IGPU,rev.K0	0805	Any
BX80616I3560 BXC80616I3560 CM80616003177AH	i3-560	3.33G,L2:4M, IGPU,rev.K0	1002	Any
Intel Core i5
CM80616003174AO BX80616I5655K	655K	3.2G,L2:4M, IGPU,rev.K0,73W	0903	Any
BV80605001908AN BX80605I5760	760	2.8G,L3:8M, rev.B1,95W	0905	Any
BX80616I5650 BXC80616I5650 CM80616003174AH	i5-650	3.2G,L2:4M, IGPU,rev.C2,73W	0505	Any
BX80616I5650 BXC80616I5650 CM80616003174AH	i5-650	3.2G,L2:4M, IGPU,rev.K0,73W	1002	Any
BX80616I5660 BXC80616I5660 CM80616003177AC	i5-660	3.33G,L2:4M, IGPU,rev.C2,73W	0505	Any
BX80616I5660 BXC80616I5660 CM80616003177AC	i5-660	3.33G,L2:4M, IGPU,rev.K0,73W	1002	Any
BX80616I5661 BXC80616I5661 CM80616004794AA	i5-661	3.33G,L2:4M,IGPU, rev.C2,87W	0505	Any
BX80616I5661 BXC80616I5661 CM80616004794AA	i5-661	3.33G,L2:4M,IGPU, rev.K0,87W	1002	Any
BX80616I5670 BXC80616I5670 CM80616004641AB	i5-670	3.46G,L2:4M, IGPU,rev.C2,73W	0505	Any
BX80616I5670 BXC80616I5670 CM80616004641AB	i5-670	3.46G,L2:4M, IGPU,rev.K0,73W	1002	Any
BX80616I5680 BXC80616I5680 CM80616004806AA	i5-680	3.6G,L2:4M, IGPU,rev.K0,73W	0805	Any
BV80605001911AP BX80605I5750 BXC80605I5750	i5-750	2.66G,L3:8M, rev.B1,95W	0304	Any
BV80605001911AP BX80605I5750 BXC80605I5750	i5-750	2.66G,L3:8M, rev.B1,95W	0304	1.01G
BV80605003213AH BX80605I5750S	i5-750S	2.4G,L3:8M, rev.B1,82W	0505	Any
Intel Core i7
BV80605001908AK BX80605I7860 BXC80605I7860	i7-860	2.80G,L3:8M, rev.B1,95W	0304	Any
BV80605001908AK BX80605I7860 BXC80605I7860	i7-860	2.80G,L3:8M, rev.B1,95W	0304	1.01G
BV80605003210AD BX80605I7860S	i7-860S	2.53G,L3:8M, rev.B1,82W	0505	Any
BV80605001905AI BX80605I7870 BXC80605I7870	i7-870	2.93G,L3:8M, rev.B1,95W	0304	Any
BV80605001905AI BX80605I7870 BXC80605I7870	i7-870	2.93G,L3:8M, rev.B1,95W	0304	1.01G
BV80605004494AB BX80605I7870S	i7-870S	2.66G,L3:8M, rev.B1	0805	Any
BV80605001905AM BX80605I7875K	i7-875K	2.93G,L3:8M, rev.B1,	0903	Any
BV80605002505AG BX80605I7880	i7-880	3.06G,L3:8M, rev.B1	0805	Any
Intel Pentium Dual-Core
BX80616G6950 BXC80616G6950 CM80616004593AE	G6950	2.8G,L2:4M, IGPU,rev.C2,73W	0505	Any
BX80616G6950 BXC80616G6950 CM80616004593AE	G6950	2.8G,L2:4M, IGPU,rev.K0,73W	1002	Any
CM80616005373AA	G6960	2.93G,L2:3M, IGPU,rev.K0,73W	1101	Any

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.