Technical Product Specification

Table Of Contents
Intel
®
Server Board S5400SF TPS System BIOS
Revision 2.02
Intel order number: D92944-007
111
AF002171
3
BIOS Select
1-2: Force
Lower Bank
2-3: Normal
Operation (Default)
3
J3H1
Figure 41. BIOS Select Jumper Position
BIOS updates can be made with the BIOS Select jumper in either of the two positions. The
behavior of the system in either of these modes is described below.
5.4.1 BIOS Select Jumper in Normal Mode (Jumper pins 2-3 connected)
In the normal mode, the new BIOS image is updated onto the secondary partition and is
validated. If the validation is successful, the BIOS uses specialized hardware to notify the
system to boot from the new BIOS, and resets the system. The new BIOS begins to boot. If the
boot is successful, the BIOS update is complete. If the new BIOS fails to boot successfully, a
timer is started and the system rolls back to the previous, healthy BIOS image.
1. Boot the system with the jumper covering pins 2 and 3.
2. Update the BIOS using iFlash or the Intel
®
One Flash Update (Intel
®
OFU) utility.
3. Reset the system.
4. The current BIOS validates and then boots from the new BIOS.
5. If the new BIOS fails, roll back occurs and the system boots with the old BIOS.
5.4.2 BIOS Select Jumper in Recovery Mode (Jumper pins 1-2 connected)
To update the primary BIOS image, move the recovery jumper to force the BIOS to boot from
the secondary partition of the flash.
1. Boot the system with the jumper covering pins 1 and 2.
2. Update the BIOS using iFlash or the Intel
®
OFU utility.
3. Reset the system.