Intel® Server Board Set SE8500HW4

Jumpers

Servers connected to high-line power (200/208/220/230/240VAC) do not have a power consumption threshold. Under these conditions, the J4G3 jumper should be set as follows:

ƒ100/110VAC rated circuit: Cover pins 2-3

ƒ115/120/127VAC rated circuit: Cover pins 1-2

ƒ200/208/220/230/240VAC rated circuit: Cover pins 1-2

The power consumption threshold is most likely to be exceeded when all of the following conditions are met:

ƒThe server is connected to a low-line power circuit

ƒThe server has a single power supply installed

ƒThe server is fully configured with four processors, 16 x4 GB DIMMs, and all PCI slots are filled

ƒThe server is running at maximum performance

If the power consumption threshold is crossed, the hardware throttles the processors to reduce the power consumption to below the set threshold. The processor performance can be returned to the full performance level by power cycling the server.

When two power supplies are installed, the required power is divided between them. By using both circuits, the server can draw more power than the threshold limit for a single power supply. The hardware reduces the amount of power consumed if one of the power supplies fails. This ensures the system consumes less power than the threshold from the single operating power supply. When a failed power supply is replaced, the system is again able to share the power load and operate at full performance.

If the J4G3 jumper is set incorrectly, the following may occur:

If the jumper is covering pins 1-2 on a 100/110VAC circuit, the server is allowed to consume up to 1350 watts. This setting may cause a circuit breaker to trip.

If the jumper is covering pins 2-3 on a 115/120/127VAC circuit, the server power consumption threshold is set to 1100 watts. The lower power threshold may be exceeded, limiting system performance.

6.1.2Intel® Management Module

The BMC boot block area of the IMM flash device is physically protected by a jumper. This jumper must be changed in order to enable updating the boot block. The BMC firmware transfer code does sense the state of this jumper and will always allow writes to the boot block area. If the jumper is not in the enabled position, the boot block writes will fail. Please refer to BMC release notes and the Intel® Management Module Technical Product Specification for more information.

Revision 1.0

45

 

Intel order number D22893-001