| Part Number | Frequency | Features | BIOS | PCB | Notes |
| AMD Athlon 64 |
ADA3000IAA4CN ADA3000CNBOX | 3000+ | CN 512K 62W | 0116 | Any | |
ADA3200IAA4CN ADA3200CNBOX | 3200+ | CN 512K 62W | 0116 | Any | |
ADH3200IAA4DE ADH3200DEBOX | 3200+ | SocketAM2, 45W, rev.G, 512K, DE | 0502 | Any | |
ADA3500IAA4CN ADA3500CNBOX | 3500+ | CN 512K 62W | 0116 | Any | |
ADA3500IAA4CW ADA3500CWBOX | 3500+ | CW 512K 62W | 0116 | Any | |
ADH3500IAA4DE ADH3500DEBOX | 3500+ | SocketAM2, 45W, rev.G, 512K, DE | 0502 | Any | |
ADA3500IAA4DH ADA3500DHBOX | 3500+ | SocketAM2, 62W, rev.F3, 512K, DH | 0502 | Any | |
ADA3800IAA4CN ADA3800CNBOX | 3800+ | CN 512K 62W | 0116 | Any | |
ADH3800IAA4DE ADH3800DEBOX | 3800+ | SocketAM2, 45W, rev.G, 512K, DE | 0502 | Any | |
ADA3800IAA4DH ADA3800DHBOX | 3800+ | SocketAM2, 62W, rev.F3, 512K, DH | 0502 | Any | |
ADA4000IAA4CW ADA4000CWBOX | 4000+ | SocketAM2, 59W, rev.F2, 512K, CW | 0401 | Any | |
ADA4000IAA4DH ADA4000DHBOX | 4000+ | SocketAM2, 62W, rev.F3, 512K, DH | 0502 | Any | |
ADH1600IAA5DH ADH1600DHBOX | LE-1600 | SocketAM2, 45W, rev.F3, 1M, DH | 0804 | Any | |
ADH1620IAA5DH ADH1620DHBOX | LE-1620 | SocketAM2, 45W, rev.F3, 1M, DH | 0804 | Any | |
ADH1640IAA5DH ADH1640DHBOX | LE-1640 | SocketAM2, 45W, rev.F3, 1M, DH | 0804 | Any | |
ADH1640IAA5DP ADH1640DPBOX | LE-1640 | SocketAM2, 45W, rev.G2, 1M, DP | 0904 | Any | |
ADH1640IAA4DP ADH1640DPBOX | LE-1640 | SocketAM2, 45W, rev.G2, 512K, DP | 0904 | Any | |
ADH1660IAA4DP ADH1660DPBOX | LE-1660 | SocketAM2, 45W, rev.G2, 512K, DP | 1103 | Any | |
| AMD Athlon 64 FX |
ADAFX62IAA6CS ADAFX62CSBOX | 62 | CS 1MBx2 125W | 0116 | Any | |
| AMD Athlon 64 X2 |
ADO3600IAA4CU ADO3600CUBOX | 3600+ | CU 512K 65W | 0121 | Any | |
| ADO3600IAA4DD | 3600+ | SocketAM2, rev.G, 65W, 1MB, DD | 0306 | Any | |
ADO3800IAA5CS ADO3800CSBOX | 3800+ | CS 512Kx2 65W | 0121 | Any | |
ADD3800IAA5CU ADD3800IAT5CU ADD3800CUBOX | 3800+ | CU 512Kx2 35W | 0121 | Any | |
ADO3800IAA5CU ADO3800CUBOX | 3800+ | CU 512Kx2 65W | 0116 | Any | |
ADA3800IAA5CU ADA3800CUBOX | 3800+ | CU 512Kx2 89W | 0116 | Any | |
ADO3800IAA5CZ ADO3800CZBOX | 3800+ | SocketAM2, rev.F3, 65W, 512Kx2, CZ | 0502 | Any | |
ADO4000IAA6CS ADO4000CSBOX | 4000+ | CS 1MBx2 65W | 0121 | Any | |
ADA4000IAA6CS ADA4000CSBOX | 4000+ | CS 1MBx2 89W | 0116 | Any | |
ADO4000IAA5DD ADO4000DDBOX | 4000+ | SocketAM2, 65W, rev.G, 1MB, DD | 0306 | Any | |
ADO4200IAA5CU ADO4200CUBOX | 4200+ | CU 512Kx2 65W | 0121 | Any | |
ADA4200IAA5CU ADA4200CUBOX | 4200+ | CU 512Kx2 89W | 0116 | Any | |
ADO4200IAA5DD ADO4200DDBOX | 4200+ | SocketAM2, 65W, rev.G1, 512Kx2, DD | 0803 | Any | |
ADO4200IAA5DO ADO4200DOBOX | 4200+ | SocketAM2, 65W, rev.G2, 512Kx2, DO | 0804 | Any | |
ADO4400IAA6CS ADO4400CSBOX | 4400+ | CS 1MBx2 65W | 0121 | Any | |
ADA4400IAA6CS ADA4400CSBOX | 4400+ | CS 1MBx2 89W | 0116 | Any | |
ADO4400IAA5DD ADO4400DDBOX | 4400+ | SocketAM2, 65W, rev.G, 1MB, DD | 0306 | Any | |
ADO4400IAA5DO ADO4400DOBOX | 4400+ | SocketAM2, 65W, rev.G2, 1MB, DO | 0804 | Any | |
ADO4600IAA5CU ADO4600CUBOX | 4600+ | CU 512Kx2 65W | 0121 | Any | |
ADA4600IAA5CU ADA4600CUBOX | 4600+ | CU 512Kx2 89W | 0116 | Any | |
ADO4600IAA5CZ ADO4600CZBOX | 4600+ | SocketAM2, 65W, rev.F3, 1MB, CZ | 0502 | Any | |
ADO4600IAA5DO ADO4600DOBOX | 4600+ | SocketAM2, 65W, rev.G2, 1M, DO | 1103 | Any | |
ADO4800IAA6CS ADO4800CSBOX | 4800+ | CS 1MBx2 65W | 0121 | Any | |
ADA4800IAA6CS ADA4800CSBOX | 4800+ | CS 1MBx2 89W | 0116 | Any | |
ADO4800IAA5DD ADO4800DDBOX | 4800+ | SocketAM2, 65W, rev.G, 1MB, DD | 0306 | Any | |
ADO4800IAA5DO ADO4800DOBOX | 4800+ | SocketAM2, 65W, rev.G2, 1MB, DO | 0803 | Any | |
ADA5000IAA5CS ADA5000CSBOX | 5000+ | CS 1MB 89W | 0203 | Any | |
ADA5000IAA5CU ADA5000CUBOX | 5000+ | CU 512Kx2 89W | 0116 | Any | |
ADO5000IAA5CZ ADO5000CZBOX | 5000+ | SocketAM2, 65W, rev.F3, 1MB, CZ | 0702 | Any | |
ADO5000IAA5DD ADO5000DDBOX | 5000+ | SocketAM2, 65W, rev.G, 1MB, DD | 0306 | Any | |
ADO5000IAA5DS ADO5000DSWOF | 5000+ | SocketAM2, 65W, rev.G, 1MB, DS | 0804 | Any | |
ADO5000IAA5DO ADO5000DOBOX | 5000+ | SocketAM2, 65W, rev.G2, 1MB, DO | 0803 | Any | |
ADO5000IAA5DS ADO5000DSWOF | 5000+ | SocketAM2, 65W, rev.G2, 1MB, DS | 0804 | Any | |
ADA5000IAA5CZ ADA5000CZBOX | 5000+ | SocketAM2, 89W, rev.F3, 1MB, CZ | 0306 | Any | |
ADH5050IAA5DO ADH5050DOBOX | 5050+ | 1 MB, Rev. G2, 45W, Socket AM2, ADH5050IAA5DO | 1207 | Any | |
ADA5200IAA6CS ADA5200CSBOX ADA5200IAA6CZ | 5200+ | CS 1MBx2 89W | 0203 | Any | |
ADO5200IAA6CZ ADO5200CZBOX | 5200+ | SocketAM2, 65W, rev.F3, 2MB, CZ | 0502 | Any | |
ADA5200IAA6CZ ADA5200CZBOX | 5200+ | SocketAM2, 89W, rev.F3, 2MB, CZ | 0306 | Any | |
ADO5400IAA5DO ADO5400DOBOX | 5400+ | SocketAM2, 65W, rev.G2, 1M, DO | 0906 | Any | |
ADO5400IAA5DS ADO5400DSBOX | 5400+ | SocketAM2, 65W, rev.G2, 1M, DS | 1207 | Any | |
ADA5400IAA5CZ ADA5400CZBOX | 5400+ | SocketAM2, 89W, rev.F3, 1M, CZ | 0306 | Any | |
ADO5600IAA5DO ADO5600DOBOX | 5600+ | SocketAM2, 65W, rev.G2, 1MB, DO | 1103 | Any | |
ADA5600IAA6CZ ADA5600CZBOX | 5600+ | SocketAM2, 89W, rev.F3, 2MB, CZ | 0306 | Any | |
ADX6000IAA6CZ ADX6000CZBOX | 6000+ | SocketAM2, 125W, rev.F3, 2MB, CZ | 0502 | Any | |
ADA6000IAA6CZ ADA6000CZBOX | 6000+ | SocketAM2, 89W, rev.F3, 2MB, CZ | 0702 | Any | |
ADV6000IAA5DO ADV6000DOBOX | 6000+ | SocketAM2, 89W, rev.G2, 1MB, DO | 1103 | Any | |
ADX6400IAA6CZ ADX6400CZBOX | 6400+ | SocketAM2, 125W, rev.F3, 2MB, CZ | 0702 | Any | |
AD6500WCJ2BGH AD6500WCGHBOX | 6500+ | 2.3 GHz, 1 MB, Rev. B3, 95W, Socket AM2, AD6500WCJ2BGH | 1207 | Any | |
| AMD Athlon X2 |
ADH4050IAA5DO ADH4050DOBOX | 4050e | SocketAM2, 45W, rev.G2, 1M, DO | 1103 | Any | |
ADH4450IAA5DO ADH4450DOBOX | 4450e | SocketAM2, 45W, rev.G2, 1M, DO | 1101 | Any | |
ADH4850IAA5DO ADH4850DOBOX | 4850e | SocketAM2, 45W, rev.G2, 1M, DO | 1103 | Any | |
| ADO5000IAA5DU | 5000+ | SocketAM2, 65W, rev.G2, 1MB, DU | 1103 | Any | |
ADH5050IAA5DO ADH5050DOBOX | 5050e | 1 MB, Rev. G2, 45W, Socket AM2, ADH5050IAA5DO | 1207 | Any | |
| AD7450WCJ2BGH | 7450+ | 2.4 GHz, 2 MB, Rev. B3, 95W, Socket AM2+, AD7450WCJ2BGH | 1207 | Any | |
| AD7550WCJ2BGH | 7550+ | 2.5 GHz, 2 MB, Rev. B3, 95W, Socket AM2+, AD7550WCJ2BGH | 1207 | Any | |
AD7750WCGHBOX AD7750WCJ2BGH | 7750+ | 2.7 GHz, 2 MB, Rev. B3, 95W, Socket AM2+, AD7750WCJ2BGH | 1207 | Any | |
AD775ZWCJ2BGH AD775ZWCGHBOX | 7750+ | 2.7 GHz, 2 MB, Rev. B3, 95W, Socket AM2+, AD775ZWCJ2BGH | 1207 | Any | |
AD785ZWCGHBOX AD785ZWCJ2BGH | 7850+ | 2.8 GHz, 2 MB, Rev. B3, 95W, Socket AM2+, AD785ZWCJ2BGH | 1207 | Any | |
ADH2300IAA5DD ADH2300DDBOX | BE-2300 | SocketAM2, rev.G, 45W, 1M, DD | 0604 | Any | |
ADH2300IAA5DD ADH2300DDBOX | BE-2300 | SocketAM2, rev.G1, 45W, 1M, DD | 0604 | Any | |
ADH2300IAA5DO ADH2300DOBOX | BE-2300 | SocketAM2, rev.G2, 45W, 1M, DO | 0804 | Any | |
ADH2350IAA5DD ADH2350DDBOX | BE-2350 | SocketAM2, rev.G, 45W, 1M, DD | 0604 | Any | |
ADH2350IAA5DD ADH2350DDBOX | BE-2350 | SocketAM2, rev.G1, 45W, 1M, DD | 0604 | Any | |
ADH2350IAA5DO ADH2350DOBOX | BE-2350 | SocketAM2, rev.G2, 45W, 1M, DO | 0804 | Any | |
ADH2400IAA5DO ADH2400DOBOX | BE-2400 | SocketAM2, rev.G2, 45W, 1M, DO | 0804 | Any | |
| AMD Opteron |
OSA1210IAA6CZ OSA1210CZBOX | 1210 | SocketAM2, 103W, rev.F3, 1.8G, 2M/L2 | 0502 | Any | |
OSA1212IAA6CZ OSA1212CZBOX | 1212 | SocketAM2, 103W, rev.F3, 2.00G, 2M/L2 | 0502 | Any | |
OSO1212IAA6CZ OSO1212CZWOF | 1212HE | SocketAM2, 65W, rev.F3, 2.00G, 2M/L2 | 0502 | Any | |
OSA1214IAA6CZ OSA1214CZBOX | 1214 | SocketAM2, 103W, rev.F3, 2.2 GHz, 2M/L2 | 0502 | Any | |
OSA1216IAA6CZ OSA1216CZBOX | 1216 | SocketAM2, 103W, rev.F3, 2.40G, 2M/L2 | 0502 | Any | |
OSA1216IAA6CS OSA1216CSBOX | 1216 | SocketAM2, rev.F2, 2.40G, 2M/L2 | 0502 | Any | |
OSA1218IAA6CZ OSA1218CZBOX | 1218 | SocketAM2, 103W, rev.F3, 2.60G, 2M/L2 | 0502 | Any | |
OSA1220IAA6CZ OSA1220CZBOX | 1220 | SocketAM2, 103W, rev.F3, 2.80G, 2M/L2 | 0502 | Any | |
OSX1220IAA6CS OSX1220CSBOX | 1220SE | SocketAM2, rev.F2, 2.80G, 2M/L2 | 0304 | Any | |
| AMD Phenom X3 |
| HD8250ODJ3BGH | 8250 | HD8250ODJ3BGH, Triple-Core, 1.9 GHz, 95W, rev. B3, SocketAM2+ | 1207 | Any | |
| HD8250ODJ3BGH | 8250e | HD8250ODJ3BGH, Triple-Core, 1.9 GHz, 65W, rev. B3, SocketAM2+ | 1207 | Any | |
| HD8400WCJ3BGD | 8400 | HD8400WCJ3BGD, Triple-Core, 2.1 GHz, 95W, rev. B2, SocketAM2+ | 1101 | Any | |
| HD8450ODJ3BGH | 8450 | HD8450ODJ3BGH, Triple-Core, 2.1 GHz, 95W, rev. B3, SocketAM2+ | 1207 | Any | |
HD8450WCJ3BGH HD8450WCGHBOX | 8450 | HD8450WCJ3BGH, Triple-Core, 2.1 GHz, 95W, rev. B3, SocketAM2+ | 1103 | Any | |
| HD8450ODJ3BGH | 8450e | HD8450ODJ3BGH, Triple-Core, 2.1 GHz, 65W, rev. B3, SocketAM2+ | 1207 | Any | |
HD8550WCJ3BGH HD8550WCGHBOX | 8550 | HD8550WCJ3BGH, Triple-Core, 2.2 GHz, 95W, rev. B3, SocketAM2+ | 1207 | Any | |
| HD8600WCJ3BGD | 8600 | HD8600WCJ3BGD, Triple-Core, 2.3 GHz, 95W, rev. B2, SocketAM2+ | 1101 | Any | |
HD8650WCJ3BGH HD8650WCGHBOX | 8650 | HD8650WCJ3BGH, Triple-Core, 2.3 GHz, 95W, rev. B3, SocketAM2+ | 1103 | Any | |
HD8750WCJ3BGH HD8750WCGHBOX | 8750 | HD8750WCJ3BGH, Triple-Core, 2.4 GHz, 95W, rev. B3, SocketAM2+ | 1103 | Any | |
HD875ZWCJ3BGH HD875ZWCGHBOX | 8750 | HD875ZWCJ3BGH, Triple-Core, 2.4 GHz, 95W, rev. B3, SocketAM2+ | 1207 | Any | |
HD8850WCJ3BGH HD8850WCGHBOX | 8850 | HD8850WCJ3BGH, Triple-Core, 2.4 GHz, 95W, rev. B3, SocketAM2+ | 1207 | Any | |
| AMD Phenom X4 |
HD995ZXAJ4BGH HD995ZXAGHBOX | 995Z | HD995ZXAJ4BGH, Quad-Core, 2.6 GHz, 125W, rev. B3, SocketAM2+ | 1207 | Any | |
| HD9100OBJ4BGD | 9100e | HD910OBJ4BGD, Quad-Core, 1.8 GHz, 65W, rev. B2, SocketAM2+ | 1101 | Any | |
HD9150ODJ4BGH HD9150ODGHBOX | 9150 | HD9150ODJ4BGH, Quad-Core, 1.8 GHz, 65W, rev. B3, SocketAM2+ | 1103 | Any | |
HD9150ODJ4BGH HD9150ODGHBOX | 9150e | HD9150ODJ4BGH, Quad-Core, 1.8 GHz, 65W, rev. B3, SocketAM2+ | 1103 | Any | |
HD9350ODJ4BGH HD9350ODGHBOX | 9350 | HD9350ODJ4BGH, Quad-Core, 2 GHz, 65W, rev. B3, SocketAM2+ | 0602 | Any | |
HD9350ODJ4BGH HD9350ODGHBOX | 9350e | HD9350ODJ4BGH, Quad-Core, 2 GHz, 65W, rev. B3, SocketAM2+ | 0602 | Any | |
HD9450ODJ4BGH HD9450ODGHBOX | 9450 | HD9450ODJ4BGH, Quad-Core, 2.1 GHz, 65W, rev. B3, SocketAM2+ | 1207 | Any | |
HD9500WCJ4BGD HD9500WCGDBOX | 9500 | HD9500WCJ4BGD, Quad-Core, 2.2 GHz, 95W, rev. B2, SocketAM2+ | 0904 | Any | |
HD9500WCJ4BGD HD9500WCGDBOX | 9500 | HD9500WCJ4BGD, Quad-Core, 2.2 GHz, 95W, SocketAM2+ | 0904 | Any | |
HD9550WCJ4BGH HD9550WCGHBOX | 9550 | HD9550WCJ4BGH, Quad-Core, 2.2 GHz, 95W, rev. B3, SocketAM2+ | 1103 | Any | |
HD9600WCJ4BGD HD9600WCGDBOX | 9600 | HD9600WCJ4BGD, Quad-Core, 2.3 GHz, 95W, rev. B2, SocketAM2+ | 0904 | Any | |
HD9600WCJ4BGD HD9600WCGDBOX | 9600 | HD9600WCJ4BGD, Quad-Core, 2.3 GHz, 95W, SocketAM2+ | 0904 | Any | |
HD960ZWCJ4BGD HD960ZWCGDBOX | 9600 | HD960ZWCJ4BGD, Quad-Core, 2.3 GHz, 95W, rev. B2, SocketAM2+ | 1001 | Any | |
HD9650WCJ4BGH HD9650WCGHBOX | 9650 | HD9650WCJ4BGH, Quad-Core, 2.3 GHz, 95W, rev. B3, SocketAM2+ | 1103 | Any | |
HD9750WCJ4BGH HD9750WCGHBOX | 9750 | HD9750WCJ4BGH, Quad-Core, 2.4 GHz, 95W, rev. B3, SocketAM2+ | 1103 | Any | |
HD9750XAJ4BGH HD9750XAGHBOX | 9750 | HD9750XAJ4BGH, Quad-Core, 2.4 GHz, 125W, rev. B3, SocketAM2+ | 1103 | Any | |
HD9850XAJ4BGH HD9850XAGHBOX | 9850 | HD9850XAJ4BGH, Quad-Core, 2.5 GHz, 125W, rev. B3, SocketAM2+ | 1103 | Any | |
HD985ZXAJ4BGH HD985ZXAGHBOX | 9850 | HD985ZXAJ4BGH, Quad-Core, 2.5 GHz, 125W, rev. B3, SocketAM2+ | 1103 | Any | |
| HD9850WCJ4BGH | 9850 | Rev. B3, Socket AM2+, Quad-Core, HD9850WCJ4BGH | 1207 | Any | |
HD995ZXAJ4BGH HD995ZXAGHBOX | 9950 | HD995ZXAJ4BGH, Quad-Core, 2.6 GHz, 125W, rev. B3, SocketAM2+ | 1207 | Any | |
| AMD Sempron |
SDO2100IAA4DD SDO2100DDBOX | 2100+ | SocketAM2, 65W, rev.G1, 512K, DD | 1101 | Any | |
SDO2100IAA4DO SDO2100DOBOX | 2100+ | SocketAM2, 65W, rev.G2, 512K, DO | 1101 | Any | |
SDA2800IAA2CN SDA2800CNBOX | 2800+ | CN 128K 62W | 0116 | Any | |
SDA3000IAA3CN SDA3000CNBOX | 3000+ | CN 256K 62W | 0116 | Any | |
SDA3200IAA2CN SDA3200CNBOX | 3200+ | CN 128K 62W | 0116 | Any | |
SDA3200IAA2CW SDA3200CWBOX | 3200+ | CW 256K 62W | 0116 | Any | |
SDA3400IAA3CN SDA3400CNBOX | 3400+ | CN 256K 62W | 0116 | Any | |
SDA3500IAA2CN SDA3500CNBOX | 3500+ | CN 128K 62W | 0116 | Any | |
SDA3600IAA3CN SDA3600CNBOX | 3600+ | CN 256K 62W | 0116 | Any | |
SDA3600IAA3CW SDA3600CWBOX | 3600+ | CW 256K 62W | 0604 | Any | |
SDA3800IAA3CN SDA3800CNBOX | 3800+ | CN 256K 62W | 0116 | Any | |
SDH1100IAA3DE SDH1100DEBOX | LE-1100 | SocketAM2, 45W, rev.G1, 256K, DE | 0702 | Any | |
SDH1150IAA3DE SDH1150DEBOX | LE-1150 | SocketAM2, 45W, rev.G1, 256K, DE | 0702 | Any | |
SDH1200IAA4DE SDH1200DEBOX | LE-1200 | SocketAM2, 45W, rev.G2, 512K, DE | 0804 | Any | |
SDH1200IAA4DP SDH1200DPBOX | LE-1200 | SocketAM2, 45W, rev.G2, 512K, DP | 1207 | Any | |
SDH1250IAA4DP SDH1250DPBOX | LE-1250 | SocketAM2, 45W, rev.G2, 512K, DP | 0804 | Any | |
SDH1300IAA4DP SDH1300DPBOX | LE-1300 | SocketAM2, 45W, rev.G2, 512K, DP | 0804 | Any | |
SDH1100IAA3DE SDH1100DEBOX | LE1100 | SocketAM2, 45W, rev.G1, 256K, DE | 0702 | Any | |
SDH1150IAA3DE SDH1150DEBOX | LE1150 | SocketAM2, 45W, rev.G1, 256K, DE | 0702 | 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.
AMD x4 940
is this board support lastest x4 940 Quad processor ?
micro suport!!!
the micro can fit into the board? yes! but the board cant take HyperTransport 3.0 (up to 5200mts).
Only up to 2000/1600mts a shame this board is so much cooler than the crosshair II!
P.D.: fingers cross for "the crosshair 3"
phenom 940
according to asus canada the cpu will fit the spot but has less pins so it won't work correctly
It won't do any phenom II only phenom I
720 & 9950
This board does in fact support the above CPU's. Check the Asus forums.
phenom II 955 ?
ve eared and readed that a socket am3 cpu can be installer in am2+ and in am2 socket ( but not the inverse )
phenom II have double DDR controller ( ddr2 ddr3 support )
can someone confirm this ?
Cosshair/940 support......
Yes the 940 runs on this motherboard.
Flash 1304 beta bios-in reset commos/
bios put in default.......
It will run-I'm running it myself......
Asus Crosshair AM2 - AMD 9950 CPU HD995ZFAJ4BGH
Hi guys,
I think there may be a mistake with the addition of the HD995ZFAJ4BGH in this list. This is actually a 140W CPU, and not a 125W, please see this link for the two 9950 CPU comparisons -
cpu-world.com/Compare/550/AMD_Phenom_X4_9950_%28125W%29_vs_AMD_Phenom_X4_9950_%28140W%29.html
and is not included in Asus's Crosshair list -
support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=Crosshair&product=1
AM3 Compatibility
Very Interesting -
Socket AM3 breaks compatibility with AM2/AM2+ processors due to a subtle change in key placement. The AM3 socket has 941 pin contacts[1] while current AM3 processors have only 938 pins. Tom's Hardware removed the two obstructing key pins from an AM2+ Phenom processor in order to fit it into an AM3 socket. The processor did not work in the AM3 socket, but still worked in an AM2+ socket, suggesting that compatibility issues run deeper than merely the key pins.[3] It is likely due to the fact that the built-in memory controller in AM2/AM2+ processors only supports DDR2 (unlike AM3 processors, which supports both DDR2 & DDR3 memory).[4]
As AM3 processors also support DDR2, they are backwards-compatible with Socket AM2/AM2+, contingent upon a BIOS update for the motherboard. Manufacturers including Asus,[5] Gigabyte,[6] and others have labeled existing AM2/AM2+ boards as being "AM3 Ready" or similar, indicating that BIOS support is provided for the specified boards. This allows existing AM2/AM2+ systems to upgrade the CPU without having to upgrade any other components.
HD995ZFAJ4BGH processor was removed from the list. At one time it was added to CROSSHAIR CPU support list on ASUS website, but, apparently, ASUS corrected their mistake, and we didn't. Thank you!
it is not on the list, but does anyone know if am2 crosshair is compatible with phenom ll x4 975?
any help is greatly appreciated