Optiplex 3060 power led flashing twice amber then seven times amber

Blinking amber suggests system initialization failed, sort of like a snow blower engine fails to kick in.  System did not start, even though “power appears to be going to the board, cpu / case fans spinning.”  It is very nonspecific as to the underlying cause.  Try clear CMOs settings.

1. Turn off the computer and disconnect the power cable from the electrical outlet.

2. Wear ESD band or ground fingers on chassis.  Remove the computer cover.

3. Locate the CMOS_CLR/Password/Service_Mode Jumper (JMP1) on the system board.

4. Remove the 2-pin jumper plug from Password jumper

5. Move the 2-pin jumper plug from the password jumper to pins into the CMOS_CLR jumper.

6. Plug in AC power to the system and wait ten seconds for the CMOS to clear.

7. Move the 2-pin jumper plug back to the password jumper.

8. Replace the computer cover.

9. Connect your computer and devices to electrical outlets, and turn them on

#24 CMOS_CLR/Password/Service_Mode Jumper (JMP1)

Dell Optiplex Diagnostic Indicators 

Odd thing about it, BIOS can't be flashed if PC don't start.

Not to cause confusion, but...  The screengrab above comes the 2020 or newer section of the diagnosis indicators, as the current generation is pictured for reference.

The 2012-2020 section pictures the previous generation.  But here's a screengrab:

thank you so much guys, i'm going to try and borrow some ram from another dell machine when not in use and see if any joy.

i'll also try the cmos reset,

This did the trick for me, perfect!

The 3060 is not a laptop so LCD failure is not correct.

Good deal!

@speedstep 

Until your post, there's no mention of LCD in this thread.  Not sure what thread you're thinking of.  There is an AIO thread with LCD issues that popped up again recently.  https://www.dell.com/community/Precision-Fixed-Workstations/green-glowing-edges-at-the-corners-of-screen/m-p/7903469/emcs_t/S2h8ZW1haWx8dG9waWNfc3Vic2NyaXB0aW9ufEtRNzZGOVRIQTlYUjNKfDc5MDM0Njl8U1VCU0NSSVBUSU9OU3xoSw#M7509 

@bradthetechnut 

The post I mention is directly Above.

Screen CAP below of post still here.

So @speedstep,

You already know the table I screengrabbed that mentioned "LCD" didn't come from an 'Optiplex laptop' section, as there are no Optiplex laptops.  Do let me know if they come into play though.  You already know the table came from Dell's Diagnostic Indicators for Optiplex's, 2020 and newer, 2,7 blink code.  I did reference it mentioning BIOS and ignored the "LCD" part.  I'm sure you know the "LCD" part is for AIO's, the reason why I ignored it.  You'll also recall I mentioned not knowing the age of the 3060, as I.also posted the table for the Optiplex 2012-2020 indicators.  But you did more accurately think of the service manuals for the indicators; which goes along with Dell's 2012-2020 diagnostic indicators, in this case notably the 2,7 blink code part.

The service manual for the 3060 micro is linked, but I found no other size reference in this thread.

Optiplex 3060 SFF Service Manual 

Optiplex 3060 Tower Service Manual 

I have same issue with Vostro 3671  I noticed that if I remove mem module from one of the 2 slots, PC will boot.

the other slot works with either of modules.

then I run support assist, to check hardware. no issue reported.

Regards