HP Pavilion 6644D Specs (desktop) including cpu speed, processor type, system bus speed, LAN, power supply, audio, memory specifications (RAM), hard drive, weight, dimensions, video specs, motherboard, socket type, USB ports and expansion slots available.
These Pavilion 6644D RAM, cpu, video, memory, LAN specs, power and/or battery specs, and all other computer HP desktop specs are for informational purposes only. Please do not blame me for any inaccuracies as this info was supplied to me by the OEM in the first place. If I’m wrong, they’re wrong 
Model number
Base processor and speed
Chipset
Memory
| Component | Attributes |
|---|---|
| RAM (standard) | 64 MB SDRAM standard |
| Maximum | 256 MB (2 x 128 MB DIMM) |
| Speed | 100 MHz synchronous |
| Sockets | Two 168-pin DIMMs |
| Size | 16, 32, 64, and 128 MB DIMMs |
| Pairs Required | No |
| Type Supported | SDRAM, 100 MHz, Intel PC SDRAM unbuffered DIMM specification, revision 1.0 compliant |
Cache
| Level | Quantity |
|---|---|
| Level 1 (Primary) | 32 KB (on processor) |
| Level 2 | 128 KB (on processor) |
Hard drive
CD-RW drive
| Attribute | Properties |
|---|---|
| Speed | Write: 4x
Rewrite: 2x Read: 24x |
| CD-Read Access Speed | 150 ms |
| CD-Read Transfer Rate Read/Write (KB/sec) | 150 – 175 (1x read/write)
300 – 350 (2x read/write) 600 – 700 (4x read/write) 1200 – 1400 (8x read only) 3600 – 4100 (10x – 24x read only) |
Diskette drive
Network interface card
Fax/data modem
| Attribute | Properties |
|---|---|
| Fax/Data modem | Mac soft modem
(supports V.90 56 Kbps protocols) |
| Data speed | 56 Kbps |
| Fax speed | Up to 14.4 Kbps |
| Plug and Play | Yes |
| Hayes Compatible | Yes |
| Data compression | V.42 bis |
| Error correction | V.42 |
| COM Port (default) | 2 |
| IRQ (default) | Variable |
| EIA fax commands | Class 1 |
Video
| Attribute | Properties |
|---|---|
| Video Graphics | PCI Local Bus |
| Controller | Intel 810 |
| Video Memory | 11MB shared memory, integrated graphics, not upgradable |
| Feature Connector (game/joystick) | Yes |
| Resolutions:
640 x 480 800 x 600 1024 x 768 1280 x 1024 |
16/256/32 K/64 K/16.7 M colors
16/256/32 K/64 K colors 16/256/32 K/64 K colors 256 colors |
MPEG-1/2
Sound/audio
| Attribute | Properties |
|---|---|
| Compatibility | 3-D Stereo, PCI, 16-bit Sound |
| Controller | AMC97 codec |
| Noise Cancellation | Yes |
| Line Out | Yes |
| 3-D Spatializer | Yes |
| Wavetable | Yes |
| Tone Control | No |
| Microphone | With HP Pavilion Multimedia Display |
| Speakers | HP/Polk Audio F stereo speakers (left and right) |
External ports
| Port Type | Quantity |
|---|---|
| Serial | 1 |
| USB | 2 |
| Parallel | 1 |
| Game | 1 |
Expansion slots (total)
| Slot Type | Quantity |
|---|---|
| ISA | 0 |
| PCI | 3 |
Expansion slots (available)
| Slot Type | Quantity |
|---|---|
| PCI | 1 |
Drive bays (total)
| Bay Type | Quantity |
|---|---|
| 5.25-inch, external | 1 |
| 3.5-inch, external | 2 |
| 3.5-inch, internal | 1 |
Drive bays (free)
| Bay Type | Quantity |
|---|---|
| 3.5-inch, external | 1 |
Supported operating systems (OS/NOS)
