Macbook continuously bleeping on boot..

[brasiliangringo]

I have a macbook which on boot has a black screen and continual bleeping every second or so.. help please !?

 

[brasiliangringo]

anyone ?

 

[JediMeister]

Sounds like your computer is failing the POST (power on self test) diagnostics. I would say about 95% of the time its due to RAM. Did you install any recently, make any changes to the hardware configuration?

 

[brasiliangringo]

Think the guy who sold it to me did a 4gb upgrade..

 

[jecapaga]

Think the guy who sold it to me did a 4gb upgrade..

Take the RAM out and put it back in. Perhaps it's not seated properly.

 

[brasiliangringo]

Ok thanks for the advice, ill try that.

 

[brasiliangringo]

I tried reseating them but to no avail.. also noted they are made by Kingston - any good ? Guess this will also invalidate any claim under warranty..

 

[iGary]

You can order a new set, test them and find out that way.

 

[brasiliangringo]

Sorry i mean i have current mac care + warranty but assume aftermarket ram will invalidate any 'free fixing' ?

what i mean is obv they will tell me if the ram is faulty and not mac product so replacement at my expense but will they look at it still and diagnose the problem considering it has non standard hardware installed ?

 

[SimonJ]

Also, you could try taking one out and booting up with just one of them. That way you can find out if just one of the sticks is at fault.

 

[brasiliangringo]

tried that but left one in the top slot and didnt work - but should it have been in the bottom slot if only one 2gb stick is being used ?

 

[SimonJ]

I'm not sure about that... I guess it can't hurt to try both slots.