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ARCX 4000 SERIES
USER’S MANUAL
- 69 -
www.acromag.com
Appendix
Programmable Power Limits
Programmable CPU Power Limit Runs Cool
Acromag's XCOM-6400, ARCX units feature programmable power limits, allowing the user to 'dial-down' the
maximum power consumption of the CPU in systems where power is a concern. The graph above shows that
the i7-4700EQ CPU outperforms other available embedded Intel CPU's at every power point from 5W - 47W,
even the i5-4402E.
By simply programming a lower power limit in the BIOS setup, the 47W i7-4700EQ CPU can be used in
applications where less power is available, or heat removal is an issue. This is accomplished by the CPU
automatically under clocking its frequency to maintain a power level at the set limit
1
.
Note:
that once the minimum frequency of 800MHz is reached that the programmed limit could be exceeded. Extremely large workloads
have a realistic minimum power of around 20W. However light to medium workloads can effectively maintain a power limit as low as 5-
10W.
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CPU M
ar
k
Power Rating or Throttle Setting (W)
i7-4700EQ (5-47W)
i5-4402E (5-25W)
i7-3612QE (35W)
i7-3615E (45W)
i7-3517UE (17W)
Atom E3845 (10W)
Содержание ARCX 4000 Series
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