New Optiplex 7000 not booting

Question

Hi

This is the second new Optiplex 7000 not booting.

Brand new Optiplex 7000. Came up the first time. Worked for several minutes. On PC restart automatically started updating flash BIOS. PC was left running to finish off BIOS updated.

A few minutes later when pc was inspected it was off and there is a power light pattern on it;

3 amber flashes, short pause, 6 white flashes then long pause.

The pc would not boot now. Very disappointing that a brand new pc has gone down like this. Please treat it as priority as there is down time for the company with the second Optiplex 7000 down.

Thanks

Regards

DELL-Jesse L · Accepted Answer

Update = After completing troubleshooting, a DELL-Cares agent setup a part replacement.

yahya01 · Answer

Hi

Almost new Optiplex has stopped booting with a blue screen message INACCESSIBLE BOOT DEVICE.

Running quick tests comes out fine, all tests pass.

Booting from a Win 10 USB does not show a disk to install Win 10 on. Also going into command prompt from the Win 10 USB also does not show any disk. List Disk in DISKPART also does not list any disk except the USB disk we booted from.

SupportAssist OS Recovery seems to see the disk but we have not finished the process for now to avoid loosing data

What is the problem and how can we recover disk and data?

Thanks

Regards

Yahya

JOcean · Answer

This forum post might help. As described by @redxps630  start the RTC reset by turning off the system and leave it connected to AC power. Then press and hold the power button for 20 seconds. The RTC reset will happen after you release the button. (Thanks to @redxps630 for this procedure).

yahya01 · Answer

Hi Tried that no luck. Regards

ricardo.vix · Answer

It's showing 'INACCESSIBLE BOOT DEVICE' because Optiplex BIOS come from factory with storage set as RAID MODE. You probably changed to AHCI, so you won't be able to access the boot drive again without formatting. If you want to use it in raid mode (which won't give you any benefit if you don't use raid), you must format it. The reason why win10 usb boot don't show you a disk to install is because you changed the storage to RAID on bios and the win10/11 iso don't have the raid drivers for optiplex 7000 yet. To solve this you have 2 options: 1) Set storage to AHCI on bios; 2) Keep RAID MODE, but you must download the 'Intel Rapid Storage Technology Driver and Application' from Optiplex 7000 drivers page on dell website, extract it to the flash drive with win10/11 iso and on the drive selection screen (when formatting) press f6, go to the drive folder (if i'm not mistaken it's '\15063\Drivers\F6\VMD\f6vmdflpy-x64') and install the driver, then you be able to see and select it.

computer monster · Answer

hi yahia . what is the program that you made the usb drive from it ?

if the creation of the usb does not made correctly the pc will not boot .

try recreating this usb on rufus then try.

on the pc that you create the usb from it do these steps...

open my computer
look at the usb that carry the copy of windows

if the computer show windows badge on the usb drive it means that the usb will work 100% if your hardware is compatible with your copy of windows.

tell my what copy of windows do you need to boot

computer monster · Answer

this reply for youif you are booting from iso image on usb

computer monster · Answer

Sorry i did not read this but if the pc can not read dvds try to open the pc and check if the dvd driver cable is connected . My optiplex gx 270 had the same problem and that was the solve

yahya01 · Answer

Hi

Nothing was changed on pc which was in production. Client called and told about blue screen. The last thing done on pc was installing Microsoft Defender for Business and another third party anti-malware scanner; both done remotely.

I had already downloaded the Intel driver and was able to detect the drive in Win 10 setup and do a new Win 10 install. However the previous Win 10 setup and apps are lost. What is confusing is what caused this driver issue and would it happen again.

Thanks

Regards

yahya01 · Answer

Hi Jasper No dvd with the pc. Thanks Regards

computer monster · Answer

if your service plan not expired try to enter your service tag or express service tag in customer support and then contact with dell by the contact number shown for you or fill some info to book a sirvice day

DELL-Cares · Answer

Hi,

I'm John, one of the Supervisors at Dell Social Media Support.

I see that you have stopped responding to our resolution expert and I think you are busy at the moment. Could you please reply to this message when you’re available, so that we can get the issue resolved.

Thanks for your time and patience.

Best regards,

John

Supervisor

Dell Social Media Team

Disappointed_Dell_customer · Answer

I purchased a top of the line OptiPlex 7000 in July. The longest this computer has worked in a row is two days. Dell has replaced the motherboard five times, I sent the computer in for repair once and they shipped me a new computer once. Same issue. Five white lights and three amber lights.

Dell’s tech support is great but the quality of this system is extremely disappointing. I’ve been a loyal Dell customer for decades but not for much longer.

Do NOT buy an OptiPlex 7000.

MMoore169 · Answer

Hello, I know this is an older thread just wanted to provide for anyone still having this issue or some one who is now having this issue. We just bought one of these systems from Dell. Tried to boot it and this happened. How we resolved it is it would boot into Windows Recovery from there I accessed the cmd prompt. I then formatted the nvme m.2 drive as GPT format as follows:

1.) Type diskpart and press Enter.
2.) Type list disk and press Enter. This will list all the disks
connected to your computer.
3.) Type select disk <disk number> and press Enter. Replace <disk number> with the number of the disk you want to format.
4.) Type clean and press Enter. This will erase all the data on the disk.
5.) Type create partition primary and press Enter. This will create a new primary partition on the disk.
6.) Type format fs=ntfs quick and press Enter. This will format the partition with the NTFS file system.

7.) Type convert gpt
8.) Type assign letter=<drive letter> and press Enter. Replace <drive letter> with the letter you want to assign to the disk.
9.) Type exit and press Enter.

After this I was able to install Windows using a USB drive and it now is working perfectly.

Optiplex Desktops

New Optiplex 7000 not booting

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