Computer Electronics

HP Pavilion DV4-1540us Motherboard Teardown

27 April 2010
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 dv4-1540us entertainment notebook computer featuring an Intel GM45 Express chipset solution [without CPU or SO-DIMM memory modules].

HP Pavilion DV4-1540us Motherboard Main ImageHP Pavilion DV4-1540us Motherboard Main Image
Volume Estimations

For the purposes of this analysis, product lifetime volume is presumed to be 1M units.

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.

HP Pavilion DV4-1540us Motherboard Cost AnalysisHP Pavilion DV4-1540us Motherboard Cost Analysis
Cost Notes

Main Cost Drivers Representing ~75% of Total Direct materials Costs

Intel - AC82GM45SLB94 - Northbridge - Graphics and Memory Controller Hub (Intel 82GM45)

Intel - AF82801IBMSLB8Q - Southbridge - I/O Controller Hub (Intel ICH9)

Gold Circuit Electronics - 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

Foxconn - PZ4782x-274M-xx - CPU Socket - PGA, w/ Lock

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

Intersil - ISL6266AHRZ - Regulator - DC-DC Controller, 2-Phase, Buck, for Intel Montevina, IMVP-6 CPUs

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

IDT - 92HP61B7X5NLG - Codec - Audio

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

JMicron Technology - JMB385 - Memory Card Host Controller - PCI Express to 4-in-1 Combo Card Reader

Total BOM Cost $79.68

HP Pavilion DV4-1540us Motherboard - Motherboard TopHP Pavilion DV4-1540us Motherboard - Motherboard Top

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 dv4-1540us 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 1430
  • 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.

HP Pavilion DV4-1540us Motherboard - Motherboard BottomHP Pavilion DV4-1540us Motherboard - Motherboard Bottom

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