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HP Pavilion Desktop PCs - Motherboard Specifications, A7V-VM (Tahiti)

This document gives details on the A7V-VM motherboard. The information applies to the following HP Pavilion PC models:
Pavilion Model
Model Number
Intergrated on MB
Country
8776C
P2978A
10/100BaseT
US, Canada (Quebec)
7861
P2997A
10/100BaseT, Audio
Mexico, Venezuela, Colombia, Guatemala
7865
P3931A
10/100BaseT
US, Canada (Quebec)
7957
P5199A
10/100BaseT, Audio
Chile, Argentina
8860
P2941A
10/100BaseT, Audio
US, Canada (Quebec)
8870
P2942A
10/100BaseT, Audio
US
XL844
P3978
10/100BaseT, Audio
US
XL847
P3980A
10/100BaseT, Audio
US
XL848
P4043
10/100BaseT
US, Canada (Quebec)
XL866
P3945A
10/100BaseT, Audio
US
XL868
P3975A
10/100BaseT
US, Canada (Quebec)
XL876
P3946A
10/100BaseT, Audio
US
7950
P5158A
10/100BaseT, Audio
US, Canada (Quebec)
XL946
P5168A
10/100BaseT, Audio
US, Canada (Quebec)
Motherboard specifications table
Part / Feature
Specification / Support
Motherboard name
A7V-VM
HP/Compaq name
Tahiti
System BIOS supplier
PhoenixBIOS
Processor brand
AMD
Processor socket type
Socket A
Processor family
Athlon
Duron
Processor Speed
up to 1.4 GH
Processor front side bus frequency
100 MHz or 133 MHz FSB, depending on the specific processor
Chipset name
VIA KT133A
Memory type
SDRAM
Memory speed
100 MHz or 133 MHz
Memory sockets
Two DIMM (168-pin)
Maximum memory
512 GB (2 x 256 MB)
HP recommends a maximum of 128 MB per DIMM (256 maximum).
IDE modes
PIO Mode 3, 4, ATAPI
Expansion slots
1 AGP
3 PCI
Ports
  • 1 PS/2 keyboard
  • 1 PS/2 mouse
  • 1 10/100 network
  • 2 USB 1.0
  • 1 serial
  • 1 parallel
  • 1 VGA
  • Audio: Line in, Line out, and Microphone.
  • 1 game
Motherboard layout and photos
    Figure : Layout
  1. AMD Athlon socket A processor connector
  2. North bridge VIA VT8363 system controller
  3. PC133/PC100-compliant DIMM sockets (memory)
  4. System battery
  5. A7V-VM IDE connectors
  6. South bridge VIA VT82C868A PCI super I/O controller
  7. Accelerated Graphics Port (AGP- 4X)
  8. PCI 133 MB/sec throughput expansion slots
  9. On-board LAN controller (Realtek 10/100MB fast Ethernet)
Figure : Photo
Motherboard features
The features of this motherboard are:
  • AMD Athlon Processor Support
  • North Bridge System Chipset
  • South Bridge System Chipset
  • PC133/PC100 Memory Support
  • Super Multi-I/O
  • Expansion Slots
  • Wake-Up Support
  • AGP slot
  • USB
  • UltraDMA/66 and UltraDMA/33
  • Onboard LAN Controller
  • Onboard Audio
System Memory (DIMM)
This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are available for 3.3 volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM) of 16, 32, 64, 128, 256, or 512 MB to form a memory size between 16 MB and 1 GB.
To use Error Checking and Correction (ECC), use a DIMM with 9 chips per side (standard 8 chips/side + 1 ECC chip).
DIMMs must be 3.3 V Unbuffered for this motherboard.
The notches on the DIMM module will shift between left, center, or right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on the motherboard. Ask your retailer the correct DIMM type before purchasing.
System memory configuration chart
SDRAM in Bank 0
SDRAM in Bank 1
Total System Memory
Empty
16 MB
16 MB
Empty
32 MB
32 MB
Empty
64 MB
64 MB
Empty
128 MB
128 MB
16 MB
Empty
16 MB
16 MB
16 MB
32 MB
16 MB
32 MB
48 MB
16 MB
64 MB
80 MB
16 MB
128 MB
144 MB
32 MB
Empty
32 MB
32 MB
16 MB
48 MB
32 MB
32 MB
64 MB
SDRAM in Bank 0
SDRAM in Bank 1
Total System Memory
32 MB
64 MB
96 MB
32 MB
128 MB
160 MB
64 MB
Empty
64 MB
64 MB
16 MB
80 MB
64 MB
32 MB
96 MB
64 MB
64 MB
128 MB
64 MB
128 MB
192 MB
128 MB
Empty
128 MB
128 MB
16 MB
144 MB
128 MB
32 MB
160 MB
128 MB
64 MB
192 MB
128 MB
128 MB
256 MB
256 MB
Empty
256 MB
256 MB
256 MB
512 MB
Jumper locations and functions
There are no jumper blocks on this motherboard. Settings controlled in BIOS.

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Country: United States

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