Computer Electronics

HP Pavilion DV4-2040us Motherboard Teardown

28 October 2011
The following is an overview of a teardown analysis conducted by IHS Benchmarking.


This teardown analysis encompasses only the motherboard and peripheral PCB assemblies of a HP Pavilion dv4-2040us entertainment notebook computer featuring an AMD M880G chipset solution [without CPU or SO-DIMM memory modules].

HP Pavilion DV4-2040us Motherboard Main ImageHP Pavilion DV4-2040us Motherboard Main Image

Volume Estimations

For the purposes of this analysis, product lifetime volume is presumed to be 125

As a reminder, volume production assumptions are meant primarily to be used for our cost analysis in terms of amortized NRE and tooling costs, especially for custom components specific to the model being analyzed (mechanical components especially), and not necessarily as a market accurate estimate for a specific model. Our estimations are based on iSuppli market research and we derive rational estimates based on overall market shares of the manufacturer in question, as well as the number of products in a given portfolio and the relative popularity of certain lines of products.

Cost Notes

Main Cost Drivers (Representing ~65% of Total Direct materials Costs)

AMD - 216-0752001 - Northbridge - Graphics Controller (AMD M880G)

AMD - 218-0660017 - Southbridge - I/O Controller Hub (AMD SB710)

HannStar - 6-Layer - FR4, Lead Free

Heatsink/Cooler Assembly - Die-Cast Aluminum, Stamped Copper Plate, Copper Tubes, Aluminum Fins, Anodized, w/ 4 Spring Loaded Fasteners

Agere Systems - Delphi D40 - Modem Module Value Line Item

Sunon - GB0506PFV1-A - Blower - Maglev, 5V, 1.55W, w/ 2 Discrete Insulated Wires & 2-Position Pin Socket Connector

Hynix - H5PS1G63EFR-20L - SDRAM - DDR2, 1Gb (64Mx16), 1.8V, 500MHz

CPU Socket - PGA, w/ Lock

ST Microelectronics - LIS302DL - Accelerometer - MEMS, 3-Axis, +-2g/8g, Digital Output

Intersil - ISL6265AHRTZ - Regulator - DC-DC Controller, Multi-Output, for AMD SVI Capable Mobile CPUs

TaiTwun - Memory Card Socket - 7-in-1, SD, MMC, MS, MS Pro, xD, Metal Housing

IDT - 92HD71B7X5NLG - Codec - Audio, 4 Channel, High Definition

Ene Technology - KB926QF - Keyboard Controller - LPC Interface, Programmable GPIO, PWM, Fan Controller, 8-Bit A/D, 10-Bit D/A

Realtek - RTL8103EL - Ethernet Controller - 10/100Base-T, PCI Express, One-Time-Programmable Memory

Texas Instruments - BQ24740RHDR - Battery Charger - Multichemistry, 2-4 Li-Ion Cells, w/ Power Management

Total BOM Cost $71.77

What Is Not Included in our Cost Analysis

The total materials and manufacturing costs reported in this analysis reflect ONLY the direct materials cost (from component vendors and assorted EMS providers), AND manufacturing with basic test. Not included in this analysis are costs above and beyond the material manufacture of the core device itself – cost of intellectual property, royalties and licensing fees (those not already included into the per component price), software, software loading and test, shipping, logistics marketing and other channel costs including not only EMS provider and the OEM’s margin, but that of other resellers. Our cost analysis is meant to focus on those costs incurred in the manufacture of the core device and exceptionally in some circumstances the packaging and literature as well.

Manufacturing Notes

Country of Origin / Volume Assumptions

The HP Pavilion dv4-2040us motherboard is assumed to be produced in China.

Country of origin assumptions relate directly to the associated cost of manufacturing, where calculated by iSuppli. In the cases of ‘finished’ sub-assemblies (such as chargers), we do not calculate internal manufacturing costs, but rather assess the market price of the finished product in which case country of origin assumptions may or may not have a direct effect on pricing.

Design for Manufacturing / Device Complexity

The total component counts of the HP laptop motherboard are as follows:


Motherboard 1478

Peripheral PCBs 67

Component counts have a direct bearing on the overall manufacturing cycle times and costs, and also can increase or decrease overall yields and re-work. Our calculations of manufacturing costs factor counts and more qualitative complexities in the design

Note that manual labor has a much smaller effect on auto-insertion assembly lines (for the Main PCB, for example), where manufacturing costs are much more capital equipment intensive and driven by these investment costs.

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