Balanced Technology Extended (Btx) Thermal/Mechanical Design Information; Overview Of The Btx Reference Design; Target Heatsink Performance; Table 5-1. Balanced Technology Extended (Btx) Type Ii Reference Tma - Intel BX80571E7400 - Core 2 Duo 2.8 GHz Processor Manuallines

Balanced Technology Extended (BTX) Thermal/Mechanical Design Information

5 Balanced Technology Extended
(BTX) Thermal/Mechanical
Design Information
5.1

Overview of the BTX Reference Design

The reference thermal module assembly is a Type II BTX compliant design and is
compliant with the reference BTX motherboard keep-out and height recommendations
defined in Section 6.6.
The solution comes as an integrated assembly. An isometric view of the assembly is
provided in Figure 5-4.
5.1.1

Target Heatsink Performance

Table 5–1 provides the target heatsink performance for the processor with the BTX
boundary conditions. The results will be evaluated using the test procedure described
in Section 5.2.
The table also includes a T
solution at the processor fan heatsink inlet discussed in section 3.3. The analysis
assumes a uniform 35° C external ambient temperature to the chassis of across the
fan inlet, resulting in a temperature rise, T
maximize processor performance (refer to Sections 2.2, 2.4. and Chapter 4).
Minimizing T
Table 5–1. Balanced Technology Extended (BTX) Type II Reference TMA Performance
Intel ® Core
series with 6 MB cache
®
Intel Core
series with 3 MB cache /Intel
Pentium
series with 2 MB cache
NOTES:
1.
2.
3.
Thermal and Mechanical Design Guidelines
assumption of 35.5° C for the Intel reference thermal
A
, can lead to improved acoustics.
R
Processor
™ 2 Duo Processor E8000
™
2 Duo processor E7000
®
®
dual-core processor E5000
Performance targets (Ψ ca) as measured with a live processor at TDP.
The difference in Ψ ca between the Intel
® ™
6 MB cache, Intel Core
®
Pentium dual-core processor E5000 series with 2 MB cache is due to a slight difference
in the die size.
This data is pre-silicon data, and subject to change with the post silicon validate results
, of 0.5° C. Meeting T
R
Thermal
Requirements,
Ψca
(Mean + 3σ)
0.57 °C/W
0.594 °C/W
® ™
Core 2 Duo processor E8000 series with
2 Duo processor E7000 series with 3 MB cache, and Intel
and Ψ targets can
A CA
T Notes
A
Assumption
35.5 °C 1,2,3
35.5 °C 1,2,3
®
41