idrac and bios broblem

Thabet33,

Would you clarify the specific errors you are seeing, as well as if you are trying to login with the default credentials or custom ones? 
Also, when you are trying to login, what error do you receive there?

Lastly, the error code you provided is regarding a memory issue with the server, but should also include the dimm number that is causing it, what you could try is shutting down the server and then try swapping that dimm with another in the server to see if that error follows the dimm or stays at the slot. 

Let me know what you see.

thanks for replay 

first of all my problem is that the fan ran full speed and there is some fliker in screen 

i try to solve it than i noticed that the idrac not working and i buttn also not light 

when i try to update bios i get error (Uefi0098)

i drac and life controler is disabled 

please check boot vedieo

when i change from uefi to bios the text show corrct but i cant boot to os

Try powering down the system, remove the power cords, then hold the power button down for 20 seconds to drain the flea power. Once done then open the cover and locate the NVRAM_CLR jumper on the motherboard, as seen as #26 on page 150 here. Once located then move the jumper over, then reinstall the power cords and power up the server and complete the NVram clear. Once completed the power back down, remove cables, drain the flea power again, then restore the jumper to its original location, then close the cover and reinstall the power cables, but do NOT power the server on, wait about 2-4 minutes then power up the server, that allows the iDrac time to initialize.  Then see if it allows you to access the iDrac, if so then you can use the Rollback and update tab in the idrac to update the BIOS and iDrac. 

Let me know how it goes.

i see this topic but i dont have IDSDM/vFlash connector (is that normal ?)

and can i use usb internal ?

It can be, as the IDSDM is an optional part.

@DELL-Chris H​ 

thanks for help put still same thing

another releted erorr pic:

Any advice please   ? 

With the iDrac disabled message you are seeing, if you boot to F2 -> System Setup -> iDRAC Settings -> Lifecycle Controller, would you verify that Lifecycle Controller is set to Enabled, as well as Collect System Inventory on Restart set to Enabled, and Cancel Lifecycle Controller Actions set to Yes.

If that fails to clear the iDrac is disabled then try running the RACADM RACRESET command to restart the iDrac. If it still doesn't work then you may want to consider a hard reset of the idrac witht he RACADM RACRESETCFG command to see if that resolves it. 

On a side note, did anything change or occur with the server before this started happening, such as updates, power outage, etc?

when i go f2 -> System Setup -> iDRAC Settings i get massage"SWC0700: iDRAC is not ready. The configuration values cannot be accessed."(v.5.00.00.07)

when i run racadm i get masage"ERROR: Unable to perform requested operation"

i try to install irac with no lock only thing is Dell OpenManage insall and can open

Hi, sorry to hear that. If the other troubleshooting steps are not working then that Mobo might be the faulty part. As I know iDRAC is embedded on mobo. I believe you already did many steps already but please check you tried all the steps in here ‎SWC0700: iDRAC is not ready. The configuration values cannot be accessed. | DELL Technologies

nothing help 

i did install Ubuntu Server and try from there 

i get massge ([sudo] password for thabet: 
Collecting inventory...
............Can't open IPMI device

when try to update cpld get "Collecting inventory...
....Can't open IPMI device
.
Failed in getting the version of CPLD Firmware
"

Hello could we try this now?

Minimum to POST for the R740:

• One processor (CPU) in socket processor 1
• One memory module (DIMM) in socket A1
• One power supply unit
• Right control panel and cable (for power button functionality)
• System board

Unfortunately didn't fix the issue 

If its hardwere wich part number i shuld replace?