I have an update on the repair of my Inspiron One 2330. It was the motherboard! The used system I purchased was an exact match.  When I opened it up it was identical, part for part, with mine; good start. Also, it worked and it was loaded with an activated Windows 10 OS.  That alone was worth the purchase price.  This Inspiron had damages to the plastic bezel and a “cracked inverter”.  Not the inverter/converter board, that was fine and an exact match to the one in my system.  But the touchscreen did not work; everything else worked.  So, now, on with figuring out what was wrong with mine. First, I swapped out the easy stuff: inverter/converter board / both Ram chips and HDD went into my Inspiron… No POST! I thought to exchange the processor and the psu (which was already replaced) but I was really anxious for some positive results, so I opted for a swap of the motherboards. If this didn’t work, then I would have to dig deeper into connections and other hardware flaws. But that was not necessary – with the replacement mobo (and HDD) my Inspiron posted and I checked the UEFI settings and then allowed the OS to load to the start screen. So, now the check other items: So, my ram chips are good! So, my better i5 processor was never the problem. Some component of my original mobo failed, but I never got the 3 beeps expected from a system board failure.  That was what threw me off.  But clearly the problem lies with the system board. It’s up and running and I hope it stays that way.  But if it doesn’t, no problem. I can now open, remove and replace parts, and reclose an Inspiron One with my eyes closed. I literally had every component in and out of that pc multiple times.   But what fun it was! Thanks for all your help (especially Ron) as you gave me the confidence to dig in and work on it.  Also, the price of the repair was, well, way cheap!
I am having problem with my Dell Inspiron One 2330 All in one computer. The problem started a while ago but I am just able to get around to addressing it now; so the pc still has Windows 8 installed.  I'll update it when the problem is resolved. Here is the problem:  the pc won’t POST. It has power: the fans spin and the start button lights up steady white.  The green LED on the back glows steady green.  But the screen never displays the Dell logo and the pc does not load the OS.  I purchased a new power supply but the original and new one act identically with the fans running and LED colors; so, I don’t think the issue is the psu. I have usb connected mouse and keyboard; so we don’t have to worry about any wireless issues at this time.  I do not hear the hard drive (original HDD) spinning.  In a HD enclosure I can see all the files on another pc; so the HDD seems to be working. The input source button, when pushed, shows the computer as the display source on the right edge of the display.  So, I’m pretty sure the display is working properly. I have clicked the upper brightness button many times to be sure it’s not just brightness.  There is backlighting for a minute. Then, I did the dance of the RAM chips (both are OEM, 4 gb each, 1.5 V): I removed both and restarted the pc; it beeped (loudly) two times; this repeats every few seconds or so. Does this mean that the motherboard is working properly for sure? Then I inserted one chip at a time into each RAM slot.  So, one chip in first the upper and then the lower slot, and then this was repeated with the other chip. I restarted the pc with each chip in either position; restarted at each variation.  In all cases (4), with one chip installed the pc failed to POST and did not beep.  For good measure I reinserted both chips in the reverse positions of the original; and again, no POST. I have checked all motherboard connections (with a magnifying glass) and they look fine.   Does anyone have experience diagnosing this problem?  I really don’t want to have to buy more than I need to as I already dropped some bucks on an unnecessary replacement psu. I unplugged and discharged and waited an hour before changing the CMOS battery.  But with the fresh battery there was still no POST. I can get an inverter/converter board; those are cheap. But can anyone narrow down the problem? I am confused why the motherboard would know when no RAM is present (with 2 beeps), but then not POST with a RAM chip in place.  Maybe a Northbridge failure, but wouldn’t that beep a motherboard failure? (3 beeps) So, I guess I could have:   Suggestion: Dell should have returnable test spare parts for those of us who work on and build computers.   One other issue: during all the disassembly/reassembly I wanted to check the Touchscreen board; it’s supposed to be under Touchscreen board shield.  So, I removed that shield and there was no Touchscreen board under it!!  I know this is a touchscreen pc, so why is the board not where the Owner’s Manual says it should be?  He is an image of the ‘missing’ board. [IMAGE]   Thanks in advance for reading all my details and for your help.
Dell Inspiron One aio 2330 won't POST