XVME-6500
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 23 -
http://www.acromag.com
- 23 -
www.acromag.com
The default values for the I7-4700EQ CPU are as follows:
PL1
PL2
Tau
47W
59W
28 seconds
PL1 and PL2 can be programmed, in watts, to any value below the default.
Entering a value above the default will result in the default value being used.
Entering 0 also results in the default value being used.
PL1 Time can be programmed to any number of seconds up to 256, however it
is recommended by Intel to always use the default value of 28. This value
maximizes the effectiveness of the short-term performance boost while
ensuring that the life of the part is not jeopardized by spending too much time
above PL1.
for guidance on what limits should be used in conjunction
with the installed PMC/XMC modules.
More details about programming these power limits using the BIOS setup
utility are provided in
The
Acromag Core BIOS Manual
.
3.2.3 Power Management
The XVME-6500 module uses the Advanced Configuration and Power
Interface (ACPI) 3.0 standard to provide user-managed power via the
operating system.
3.2.3.1 ACPI System States
There are only two ACPI
“Module States”
supported by the XVME-6500:
•
G0/S0: Fully operational; the main memory is being used for all work.
•
G3: Unpowered. Power has been mechanically removed from the
system. W
ake‐up is
not possible in this state.
Note that S3 (Standby or Sleep), S4 (Hibernate) and S5 (Soft Off) are not
supported by the XVME-6500, even if the VME system supports a standby
power supply.
3.2.3.2 ACPI Processor States
The Advanced Configuration and Power Interface (ACPI) provides an open
standard for device configuration and power management by the operating
system. More details about this feature are provided in
The APTIO Haswell
Core BIOS Manual For Acromag Products
.
