Chosen Solution
Hi, I was given a Dell laptop the other day with gave out one monotonous beep every 3 seconds. I managed to reflow some of the ICs on the board and it now gives me 7 beeps when I power it on which I think suggests something to do with a CPU cache error? I contacted dell but they would’t tell me anything about how to fix it and instead offered to repair it at cost. Typical! I have tried reflowing the South/north bridge and CPU which provided no result so I would be grateful if anybody has any suggestions. Thanks
Temporary solution to that problem is to provide heat cover the laptop with blanket left it on after 25 minutes . switch on the laptop it will work