crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

crwdns2934243:0crwdne2934243:0 oldturkey03 crwdns2934247:0crwdne2934247:0

crwdns2947189:0crwdne2947189:0:

MacBook Pro won't start and beep three times sometimes

crwdns2934249:0crwdne2934249:0:

Hi,

I have a MacBook Pro 15" from 2010. It used to work fine, but all of a sudden when I tried turning it on one day it wouldn't start up and give me three beeps. I knew this could be a RAM issue, so I reseated the RAM, after which it booted fine again. A day later however the problem returned. This time reseating the RAM didn't do the job. I assumed it was faulty RAM so I ordered a new stick of RAM. Once I got it, I replaced the old one, but the MacBook would still beep three times. After several attempts I got it to boot with the new RAM.

Up to this day, it will almost always beep three times and not boot, although sometimes it will boot. I am absolutely clueless, because an issue with the RAM modules seems ruled out. Does any of you have any ideas what the problem might be? Thanks.

crwdns2866306:0crwdne2866306:0:

MacBook Pro 15" Unibody Mid 2010

crwdns2915684:0crwdne2915684:0:

open

crwdns2934251:0crwdne2934251:0:

+297257

crwdns2934241:0crwdne2934241:0 Pascal van Dooren

crwdns2947189:0crwdne2947189:0:

MacBook Pro won't start and beep three times sometimes

crwdns2934249:0crwdne2934249:0:

Hi,

I have a MacBook Pro 15" from 2010. It used to work fine, but all of a sudden when I tried turning it on one day it wouldn't start up and give me three beeps. I knew this could be a RAM issue, so I reseated the RAM, after which it booted fine again. A day later however the problem returned. This time reseating the RAM didn't do the job. I assumed it was faulty RAM so I ordered a new stick of RAM. Once I got it, I replaced the old one, but the MacBook would still beep three times. After several attempts I got it to boot with the new RAM.

Up to this day, it will almost always beep three times and not boot, although sometimes it will boot. I am absolutely clueless, because an issue with the RAM modules seems ruled out. Does any of you have any ideas what the problem might be? Thanks.

crwdns2866306:0crwdne2866306:0:

MacBook Pro 15" Unibody Mid 2010

crwdns2915684:0crwdne2915684:0:

open