Epu-3310 Thermal Characterization; Table 19: Epu-3310 Thermal Testing Setup - VersaLogic Hawk Reference Manual

EPU-3310 Thermal Characterization

The EPU-3310 board underwent the following thermal characterization tests:

Test Scenario 1: Single core EPU-3310-EAP + HDW-406 heat sink

Test Scenario 2: Dual core EPU-3310-EBP + HDW-406 heat sink, with/without HDW-411
fan

Test Scenario 3: Quad core EPU-3310-EDP + HDW-406 heat sink, with/without HDW-411
fan

Test Scenario 4: Quad core EPU-3310-EDP + HDW-406 heat sink + HDW-408 heat pipe
block, with/without HDW-411 fan
Table 19 describes the thermal testing setup for the board.
Hardware configuration
BIOS
Operating system
Test software
Test environment
Note: This device is connected through a VersaLogic VL-CBR-5016 paddleboard.
The test results reflect the test environment within the temperature chamber used. This particular
chamber has an airflow of about 0.5 linear meters per second (~100 linear feet per minute).
Thermal performance can be greatly enhanced by increasing the airflow beyond 0.5 linear meters
per second.
The system power dissipation is primarily dependent on the application program; that is, its use
of computing or I/O resources. The stress levels used in this testing are considered to be at the
top of the range of a typical user's needs.
VL-EPU-3310 Reference Manual

Table 19: EPU-3310 Thermal Testing Setup

EPU-3310 (Hawk) single/dual/quad core CPU with:

4 GB of DDR3L DRAM (2 GB for the single- and dual-core board models)

HDW-406 (passive heat sink)

HDW-408 (heat pipe block)

HDW-411 (heat sink fan)

One VGA display device (connected through the LVDS interface)

One SATA hard disk drive

Two RS-232 ports in loopback configuration (Note)

One VersaLogic VL-MPEe-E3 Mini PCIe Gigabit Ethernet module

Two active Ethernet ports in loopback configuration

Two USB 2.0 ports in loopback configuration (Note)

USB keyboard and mouse (Note)

ID string: Hawk_3.1.0.334.r1.101

Passive thermal trip point setting: 105 ºC

Critical thermal trip point setting: 110 ºC
Microsoft Windows 7, SP1

Passmark BurnIn Test v7.1 b1017
- CPU utilization ~90%

Intel Thermal Analysis Tool (TAT) v5.0.1014
- Primarily used to read the CPU core temperature
Thermal chamber
Thermal Considerations
45