Dell T3600 - No Display

did you check that the monitor works ?

Monitors are not part of the computer. They are peripheral devices and are plug and play. Make sure the monitor is connected properly to the port on the computer and it is plugged in and turned on. Try a different monitor if it's not working.

Dear Gents,

I have the same problem..

T3600 turning on but stuck on front alert green led  no# 3 with no signal on monitor (black screen)..

The issue that it is booting properly randomly..

Sometimes it does not turn on for 30 times, but once it turns on, it will work continuously as long as it works, and once it restarts, it will return to the same problem. It may turn on from the first time or after three days of attempts.

I checked the error code for no# 3 it shows "Reserved"

And I didn't understand what the problem and reason..

I replaced the VGA card the same issue.

I replaced the RAM same result.

Removed all cards ,all connected usb devices and HDD except the main one and still the same result..

The original VGA card is Quadro 5000 and the replaced one GTX 1070..

The PSU is 635w.

Could any one help...

The T3600 goes back to 2012.  Note any special settings you may have entered into BIOS.  Then replace the size 2032 battery and How to Perform a BIOS or CMOS Reset and Clear the NVRAM on Dell Computers.

Thanks a lot for your kind response..

I avoided the last period restarting my W.S but yesterday once restarted the computer the issue came back..

I replace the battery but the same issue.

I reset the bios and became better but the issue not solved completely..

now it became 50% the potential of booting..

B.R

Sorry to see it's still not working out.  The fact that you reset BIOS (and replaced the battery), and now it boots 50% of the time suggests corrupted CMOS or BIOS.

Does it allow you into F2 BIOS without any problem?  Does it have the latest BIOS that's for the T3600?  If not, you might be able to update.  But if there's any sign of trouble entering BIOS, then I wouldn't update it.  BIOS updates have to go perfectly, otherwise, it'll brick the MB.

The only things that haven't been replaced yet are the MB, CPU, and PSU.  Depending on how much work you want to put into a machine introduced in 2012, the MB may need replacing.

If behavior would've stayed the same, the possibility of it pointing to other factors other than corrupt CMOS/BIOS or the MB would've been more plausible.

You may also want to take it to a computer shop, as we can't troubleshoot the exact cause from this forum.

Thanks my dear for useful advices..

In spite of my W.S T3600 had the latest version of the BIOS, I flashed the BIOS and the problem was solved...

B.R

Interesting and glad you got it working.  :)