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roadkill401

macrumors 6502a
Original poster
Jan 11, 2015
521
210
I bought it as a refurb from Apple 6 years ago and it has been used for some time as the family computer. Mainly my daughter used it for school homework and to play her Simm's game on.

In the past two days it started to crash and make a beeping noise. My daughter just would turn it off and power it back on. Then she pointed out that her Simms wouldn't work and I figured it needed upgrading to Mojave for it to work. I hooked up an external USB3 hard drive to it and carbon copied the hard drive. in the process of doing that it did crash once on me with what sounded like a double beep pause. I didn't look it up but thought it might be the internal hard drive failing. So I rebooted and left it to Carbon Copy.

After an hour I went upstairs and it was crashed beeping. I powered it down. Unplugged it, opened the top and saw a bit of dust that I blew out, then closed it back up. Plugged it back in but it just wouldn't post chime any more.

I have checked that everything it installed right. I re-seated the RAM but no chime.


I am wondering. I had a self made fusion drive inside the unit with the 500gb hard drive + a 240gb SSD. I think I managed to back the whole drive up with CCC, but I don't really know. I have an iMac and a Thunderbay4 box. how likely is it that I can move the two drives over to the Thunderbay and have my iMac5k recognize the fusion drive?
 
run a apple hardware test to begin with, and to an nvram and smc reset.

sound a bit like you have a bad memory stick inside your macmini.
these can be easily be replaced.
 
Before you give up on it, here's something to try.

Take the bottom cover off and take out BOTH RAM DIMMs.

MARK the DIMMs -- #1 and #2 so you can easily identify them.

Now put ONE of them back in, to the lower slot. (lower when upside down, that is)

Close up and see if it will boot.

Does it?

Now re-open it and put the other DIMM back in.

Will it still boot?
 
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