R910 NOT POWER ON

Question

Hi all,

R910 isn't power on and triggered. It says "System software event: voltage sensor, state asserted was asserted." The leds on the motherboard blinked 0 and 8, but 1 is solid. Here is the video link : https://streamable.com/qdvw80

I tried to change cpu, ram. I removed pciE cards. I removed backplane cables. But it never changed. Could you help me please?

DELL-Charles R · Answer

Hello estergon85,

I'm sorry to see the R910 will not successfully complete POST. We can see it is getting power since the LED's are lit. Something is preventing it from POSTing.

I have a few questions and I'll providing minimum to post information.

What is the history of this server?

Was this a working system but now does not complete POST?

Was anything added to the server? (try removing anything newly added)

To get error codes: On the front LCD panel, hold in the italic 'i' button for 5 seconds. Note any error codes and use arrow keys to scroll through them.

Please let me know what error codes you see.

Since it fails to complete POST I'd recommend bring it down to minimum to POST components and test results.

Minimum to Post: (this is minimum components to POST, it won't boot, this is to test POST. If successful POST, put things back a little at a time until find faulting component)
Remove anything that is not on the list: all memory risers but A, hard drives, DVD, pcie cards…anything not on the list remove.

One processor installed,
- (note: system emits an error message for improper CPU configuration and will not hand off to boot)
- (if it fails to POST swap the processor with the other one and test)
Two DDR3 RDIMMs in Slots 1 and 2 of Memory Riser_A
- (if it fails to post try a different memory riser in A with DIMM slot 1 and 2 populated with different DIMMs than were used on previous riser)
I/O riser installed
One power supply
- (if it fails to post try the other power supply in a different slot)
2.5" SAS backplane (4-drive or 16-drive) installed and connected to system board. Remove just the hard drives from backplane.
Control panel connected to system board
Power Distribution Board connected to the power supply and system board

If you do not get a successful POST from these troubleshooting steps then the issue is with one of these minimum to post components.

Please let me know how it goes.

estergon85 · Answer

Hi Charles,   I tried what you said but it didn't power on.

DELL-Erman O · Answer

Hi, sorry to hear that. There might be a hardware failure. A motherboard failure is suspected, but there may also be a possibility of a problem with the PDB (power distribution board). Are there any chances to cross check PDB on another R910?

If you have done the min2post process, can you first make a power drain to discharge the static electricity on the device? Can you disconnect the server from the power, remove the PSU, hold it for 1-2 minutes and hold the power button for 15-30?

Afterward, if the same issue persists, Can you check the jumpers displacement method?

The table below contains information regarding the BIOS jumpers and how to place them correctly to perform tasks such as clearing settings to default.

estergon85 · Answer

Hi Erman,   I tried all components to a running R910. They worked. I changed jumpers as i said. But it didn't work. I think system board has been crashed.

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R910 NOT POWER ON

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