iMac 2 faulty RAM slots?
After internal cleaning, Panasonic BR2032 battery replaced, and Thermal Paste replaced in CPU and GPU, and Thermal Pads replaced in VRAM, when I press the power button, it starts with "3 beeps + 3 seconds pause" (and repeat...)
Already checked, and only the 2 lower slots are working...if put RAM in the 2 upper slots, the beeps start...could the problem be with the "retention mechanism", or with the slots?
UPDATE-> March 31 2023
UPDATE...after disassembling to verify what would be causing the anomaly, when lifting the CPU, I verified that some pins of the CPU socket had been "contaminated" with (insignificant amount that could not be seen with the "naked eye") of remnants of the "old" Thermal Paste...I cleaned the CPU contacts and pins with isopropyl alcohol...and it now works properly (when cleaning, some pins were deviated, but I also corrected them)
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