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2 Posts


26-09-2023 11:28 AM

Ram change lights 3 and 4

Hi, In my Dell percision t5600 I have 4 gb of ram it causes a lot of bottle necks so ive changed it out for a set of 16gb sticks witch i believe are the correct sticks but i plug them in and i have the error lights of 3 and 4 no input to my monoter or to my mouse or keyboard any suggeswtions as to why this aint working?,

Below are images of the new ram and it not booting

5 Practitioner


3.3K Posts

26-09-2023 12:50 PM

Perform a CMOS reset via jumper to see if it may help.  Give your system a fresh coin cell batt while working on motherboard.