643364-001 - HP Pavilion G4-1000 / G7-1000 CPU Cooling Fan Heatsink Assembly
OEM cooling module (blower fan + heatsink) engineered for Pavilion G4/G7 1000-series laptops. Replace the full unit to restore proper airflow and prevent overheating or thermal throttling.
Description
Factory-assembled CPU cooling solution for Pavilion G4-1000 and G7-1000 platforms. The radial blower moves air through the fin stack and out the side vent. Replace as a single assembly and apply fresh thermal compound during installation for optimal heat transfer.
Technical Specifications
- Manufacturer: HP
- Spare Part Number (SPN): 643364-001
- Included Components: Heatsink 643364-001 + Fan 646578-001
- Fan Connector: 3-pin
- Typical Fan Model/Rating: KSB06105HA-AJ02, 5V DC, ~0.40A
- Design: Radial blower with copper heatpipe and aluminum fin array
- Platform Note: UMA (integrated graphics) configurations typically use this assembly
- Service Tip: Remove old thermal paste and install fresh compound before reassembly
Compatibility
Please note that the following list is not exhaustive. Compatibility depends on your system’s specific configuration. It’s essential to verify compatibility with your system manufacturer prior to installation.
✔ HP Pavilion G4-1000 Series: G4-1011NR, G4-1015DX, G4-1016DX, G4-1125DX
✔ HP Pavilion G7-1000 Series: G7-1075DX, G7-1173DX
Key Features
- ☑️ Direct OEM replacement for Pavilion G4/G7 1000-series
- ☑️ Matched fan + heatsink assembly for correct fit and airflow
- ☑️ 3-pin blower ensures proper speed control with the original board
- ☑️ Helps prevent overheating, throttling, and random shutdowns
- ☑️ Drop-in installation using original screws and mounting points
Cross-Reference & Technician Notes
- Assembly ships as a combined heatsink + fan; do not separate or mix with other series variants
- Discrete-GPU versions may use a different heatsink layout; verify by sub-model and board revision
- Recommended install practice: clean dust paths, replace paste, and confirm unobstructed side vent
Recommended Thermal Paste (Not Included)
For OEM-grade results, use Shin-Etsu G751 High-Performance Thermal Paste — not included but required for proper installation. Buy Here
What’s Included
- Complete CPU cooling module (643364-001 heatsink + 646578-001 fan)
- Thermal paste not included (see recommendation above)
