Six beeps is a GPU failure. Run the Dell diagnostics to confirm (F12 at powerup to boot into diagnostic mode).
There is either one GPU aboard (intel integrated aboard the CPU) or two (that plus a discrete GPU). Though the Intel CPU is socketed on this model and therefore replaceable, the nVidia GPU is not - it's part of the system board. If the nVidia GPU fails, the system board needs to be replaced.
Mary G
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Posted November 24th, 2020 09:00
Replace the coin cell battery. But it anywhere batteries are sold for about $2. Manual has instructions.