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Dell Inspiron 3521 Sonar Beeping on Startup?

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Last Modified: 2018-05-22
Hi.
Please watch the video located HERE.
This will show you exactly what is happening when I try and boot my friend's laptop.
I swapped the memory and hard drive but that didn't help.
I tried booting it with and without a battery as well.
I ran the internal Dell diagnostics with extended memory test but everything passes.
The system will boot occasionally so it's not completely shot but it's a bust about 75% of the time.
Anyone have any ideas?  
Thanks in advance.
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