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Socket CPU CPU Compatibility Intel 1156 Core i7 Supports all speeds Core i5 Core i3 1366 Core i7 Supports all speeds 775 Core 2 Quad Supports all speeds Core 2 Duo Core 2 Extreme Pentium Dual Core Pentium D Pentium 4 Celeron D AMD AM3 Phenom II Supports all speeds Athlon II AM2+ Phenom II Supports all speeds Phenom Athlon FX Athlon X2 Athlon Sempron AM2 Athlon FX Supports all speeds Athlon X2 Athlon Sempron 940 Dual-Core Opteron Supports all speeds Opteron Athlon FX 939 Dual-Core Opteron Supports all speeds Opteron Athlon FX Athlon X2 Athlon 754 Athlon Supports all speeds Sempron   Dimensions 94(L) x 131(W) x 152(H) mm Weight 730g Base Material Pure Copper Dissipation Area 5,402㎠   Bearing Type 2 Ball-Bearing without RC33P RPM 1,000rpm ~ 2,000rpm ¡À 10% Noise Level 19.5dBA ~ 38.0dBA ¡À 10% with RC33P RPM 800rpm ~ 1,300rpm ¡À 10% Noise Level 18dBA ~ 28.5dBA ¡À 10% Main Functions 4-Pin Connector (PWM Control, Auto Restart) Color Gray Capacity 3.5g Specific Gravity @23¡ãC 2.88 Thermal Resistance 8㎟ㆍK/W Thermal Conductivity 4.1W/mK Temperature Stability -40¡ãC ~ +150¡ãC (-40¨H ~ +302¨H)   Powerful Cooling Performance Optimally designed pure copper fins effectively disperse heat away from the CPU via heatpipes, while the high capacity 120mm fan quickly cools the heatsink for stable operation of high performance CPUs. PWM Fan Speed Control The PWM(Pulse Width Modulation) Fan automatically adjusts fan speed(RPM) according to the CPU¡¯s temperature,?while the included Resistor Cable(RC33P) provides the option of reducing the input voltage for overall reduction of fan speed and noise. ¡ù Quiet Mode (w/ RC33P): 800 - 1300RPM / 18 - 28dBA ¡À10% ¡ù Normal Mode: 1000 - 2000RPM / 19 - 38dBA ¡À10%   Ultra Quiet 120mm Blue LED Fan An ultra quiet 120mm fan is incorporated for minimized noise and Blue LEDs heighten the cool aesthetics. Omega(Ω) Heatpipe Design The CNPS9900A LED¡¯s distinctive Omega(Ω) design not only provides excellent CPU Cooling but also effectively cools surrounding components for excellent system stability.   High Performance Super Thermal Grease ZM-STG2 The included all new high performance thermal grease ZM-STG2 maximizes heat transfer from the CPU to the base of CNPS9900A LED for intensified cooling performance. Versatile Compatibility CNPS9900A LED accommodates a broad range of sockets. Intel LGA1156/1366/775, AMD AM3/AM2+/AM2/754/939/940   Common Components - Cooler - Thermal Grease (ZM-STG2) - Resistor Cable (RC33P) - Washers - User¡¯s Manual Components for Intel Socket 1156/775 - Socket 1156/775 Clip - Socket 1156/775 Clip Support - Socket 775 Backplate - Socket 1156 Nuts - Socket 1156/775 Bolts (Silver)     Components for Intel Socket 1366 - Socket 1366 Clip - Socket 1366 Clip Support - Socket 1366 Bolts (Gold) Component for AMD   Socket AM3/AM2+/AM2/754/939/940 - AMD Clip

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