Functional Description
MEN Mikro Elektronik GmbH
26
20G020-00 E5 – 2014-01-21
2.4
Reset Behavior
The G20 can be reset using the reset button on the front panel or the
PRST#
signal
on the backplane. (See also
Chapter 2.14 Reset Button on page 52
.)
2.5
Real-Time Clock
The board includes a real-time clock connected to the chipset. For data retention
during power off the RTC is backed up by a supercapacitor. The supercapacitor
gives an autonomy of approx. 14 hours when fully loaded. The RTC can generate
interrupt requests to the chipset.
The RTC has an accuracy of approximately 1.7 seconds/day (11 minutes/year) at
25°C.
For retention of time/date data after a power off of more than 8-10 hours the RTC is
also backed by a battery.
Note: The battery is not available if you use an Ethernet rear I/O card (e.g. GM1) on
the G20.
For ordering options please see MEN’s
website
.
2.6
Processor Core
The G20 can be equipped with different types of Intel Core i7, i5 or i3 processors.
The following table gives a performance overview:
Table 1.
Processor core options on G20
2.6.1
Thermal Considerations
A suitable heat sink is provided to meet thermal requirements. For special
requirements a larger heat sink is also available on request. Please contact
MEN
sales
for more information.
Please note that if you use any other heat sink than that supplied by MEN, or no heat
sink at all, warranty on functionality and reliability of the G20 may cease. If you
have any questions or problems regarding thermal behavior, please contact MEN.
Processor Type
Core Frequency
Power Class
L2 Cache
AMT Support
Intel Core i7-610E
2.53 GHz
35 W
4 MB
yes
Intel Core i7-620LE
2 GHz
25 W
4 MB
yes
Intel Core i7-620UE
1.06 GHz
18 W
4 MB
yes
Intel Core i5-520E
2.4 GHz
35 W
3 MB
no
Intel Core i3-330E
2.13 GHz
35 W
3 MB
no
!
