XVME-6500
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 39 -
http://www.acromag.com
- 39 -
www.acromag.com
Example 2:
An XVME-6500 is used in a 3-row backplane with 5V only power. The expected
expansion card power is 40W. To determine the value to use for
PL1: PL1= 57.5W - 40W
–
23.5W = -6.0W.
The expected expansion card power is too
large for this scenario.
Example 3:
An XVME-6500 is used in a 3-row backplane with 5V only power. The expected
expansion card power is 30W. To determine the value to use for PL1:
PL1= 57.5W - 30W
–
23.5W = 4.0W.
Care must be taken in this situation. Since this value is much less than 20W, only
very small workloads on the CPU will keep the power at this limit. The expected
expansion card power is still likely too large to maintain a long life of the XVME-
6500.
for more details regarding Programmable CPU Power Limits.
If PL1 is not lowered using the Programmable CPU Power Limits, the following
tables describe the available power for installed expansion modules.
For i7-4700EQ CPU:
Backplane Type
Combined Expansion Module Power
5-row with 5V & 3.3V supplied
5V: 20W
3.3V: 63.5W
5-row with 5V only supplied
5V: 17.5W
3.3V: included in 5V
3-row with 5V only supplied
ONLY SUPPORTED WITH PL1 lowered
