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2 Bronze

XPS One 2710, won't boot after A14 BIOS update

I updated 2012 XPS One 2710 BIOS from A12 to A14. Now PC is in restarting cycle, start 1-2 sec, then off, and then again start 1-2 sec then off. What happened? What can I do?

Replies (15)
8 Krypton

Corrupted BIOS and most except very latest Dell's there is no recovery other than replace the motherboard.

Here is the link to the Dell BIOS recovery on models that have it.

Dell's policy on failed BIOS:

Dell Policy, BIOS breaks motherboard CMOS

 

In warranty customers

If a Dell Support representative directs you to update the BIOS, and it broke the motherboard CMOS, Dell will replace the motherboard.
Stipulations =
* The service itself could be either onsite service or Return to Dell Depot, depending on which warranty you purchased

If you updated the BIOS without any direction from a Dell Support representative, and it broke the motherboard CMOS, Dell will do a one time only motherboard replacement.
Stipulations =
* The service itself could be either onsite service or Return to Dell Depot, depending on which warranty you purchased
* We will then ask you to not install any BIOS update unless you contact us first and have us guide you

Out of warranty customers

If a Dell Support representative directs you to update the BIOS, and it broke the motherboard CMOS, you are eligible for a one time only out of warranty motherboard replacement.
Stipulations =
* This is a one time only offering
* This is a parts only service. Dell will not send on onsite technician
* Dell will only have motherboards available for 5 years from the original system RTS (Ready To Ship) date. If you are past this 5 year period, you will need to purchase the motherboard from a 3rd party seller

If you updated the BIOS without any direction from Dell Support representative, and the BIOS update broke the motherboard CMOS, you have to buy the replacement motherboard either from Dell or a 3rd party seller.



I am not a Dell Employee

Dell forum member since 2002

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@mpower78  - Is this a 2710 or 2720? <I checked the service tag. It's a 2012 XPS One 2710. DELL-Chris M>

You could try clearing BIOS...

  1. Power off, unplug
  2. Press/hold power button for ~15 sec
  3. Open case and remove motherboard battery (check model-specific Service Manual for details)
  4. Press/hold power button for ~30 sec
  5. Reinstall the battery (Time for a fresh battery?)
  6. Close up and reboot - with fingers x'd 

Ron

   Forum Member since 2004
   I'm not a Dell employee

I tried it.. but really strange it works...

1 of 10 times boot process work... between boot i tried remove cmos battery, change memory slot ... i don't know why sometimes boot and often no...

 

 

After many tests i have result...

When i want to boot. I have to change memory configuration.. it means change memory from slot 1 to slot 2... or the other way. Then when i turn off computer using "windows power off" PC not boot anymore.

Any idea?

 

Did you install a fresh motherboard battery?

Remove the RAM modules and use some canned air to blow out the RAM slots. And use a soft, lint-free cloth to gently wipe the connector on the RAM modules before reinstalling them and locking in place.

 

Ron

   Forum Member since 2004
   I'm not a Dell employee

I found the solution for boot... turn off pc, unplug power cable, change memory modules and boot... then i can go to bios... , and continue to boot. after work when i off PC, again i can't boot. so change momery modules helps... but i don't want change memory every time i off my pc... any help?

@mpower78  - Did you replace the motherboard battery, as I mentioned above?

How many RAM modules do you have? If more than one, try each one separately. When only one RAM module is installed, it should be in the slot closest to the CPU (DIMM1). 

Use some canned air to clean out the RAM slots and gently wipe the contacts on the module(s) with lint-free cloth.

Ron

   Forum Member since 2004
   I'm not a Dell employee

@RoHe yes, I did every mentioned steps. Use separate memory, reset CMOS by jumper on board, change battery, (load defaults by bios GUI)...

when i change memory slots, PC start... but when i turn it off and then back turn on, PC is repeatedly turn off, turn on, turn off, turn on...3 sec intervals, none beeps.

so as i mentioned above, unplug from power, change memory slot, or unplug one memory, then plug power again and power on, pc start correctly...

i think there are two bios on board (that's my knowledge, main and backup) and when i change memory,  backup bios work.. after turn off pc and try to turn on again, pc want to use main bios and it doesn't work...

 

There aren't 2 separate BIOS on the motherboard. The default settings are stored on the chip. If you manually change and save new settings, those are stored and used unless/until you clear BIOS, which resets everything back to the defaults again.

Unless you intentionally reset BIOS or the battery is too weak to hold any settings changed from the defaults, just swapping RAM modules shouldn't BIOS change settings.

It sounding like there may be a fault the way BIOS got updated, or with the memory controller or maybe with a RAM module.

Have you rebooted and run the diagnostics from the F12 boot menu?

Ron

   Forum Member since 2004
   I'm not a Dell employee

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