Power Light: Amber-White
Blinking
Amber/White Blinking Pattern Problem Description Suggested Resolution
• Flash latest BIOS version. If
problem persists, contact
Tech Support
3-4 3 amber blinks followed by a
short pause, 4 white blinks, long
pause, then repeats
BIOS Recovery 2
• System is in Recovery Mode.
• Flash latest BIOS version. If
problem persists, contact
Tech Support
4-6 4 amber blinks followed by a
short pause, 6 white blinks, long
pause, then repeats
RAID Volume degraded
• RAID volume is degraded.
• If you can assist to
troubleshoot, us F12 menu to
enter Device Conguration
tab. Rebuild the RAID
volume if possible
• Contact Tech Support.
4-7 4 amber blinks followed by a
short pause, 7 white blinks, long
pause, then repeats
System Side cover is missing
• System side cover(either left
or right) is missing.
• Unplug power, Install back all
side covers back to the
chassis and plug in power.
• Contact Tech Support.
PCIe slots
The PCIe slots on Precision 5820 have a dierent functionality depending on the processor installed. Core i7-78xx has a limit of 28 lanes.
This results in a reduced PCIe lane count to the slots 1 and 4 as shown in the following table:
• Slot 1 is closest to CPU/memory complex.
Table 23. PCIe slots
Core i9-79xx/Xeon Core i7-78xx
Slot 1 PCIe x850W Nonfunctional
Slot 2 PCIex16 300 W* PCIex16 300 W
Slot 3 PCIex125W-PCH PCIex1 25W-PCH
Slot 4 PCIex16 300 W* PCIex8 150 W
Slot 5 PCIex4 25W-PCH PCIex4 25W-PCH
Slot 6 PCI 32 bit 25 W PCI 32 bit 25 W
NOTE: All slots are Gen3(8GTs) from processor root hub unless otherwise indicated xX indicates the number of lanes that are
connected to the slot. FH=Full Height, FL=Full Length, DW=Double Wide as dened by PCIe CEM spec *Slots are 300 W
capable. Limited to 250 W per slot when more than one MEGA is installed.
Troubleshooting 95
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