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Well I take one memory out upper first and I tap tap around the mobo boom frezze do funy stuff power off take lower memory out and install upper memory tap tap around no drama look ok I a take out memory and install 1 stick 4 gb upper slot no drama work thank you.... this was a MacBookPro9,2...
Hello guy what kind of error is this one I got this laptop owner say sometime turn off so I check it it was dirty whit dust inside no water damage mark I clean the mobo I upgrade the hard drive put back and run normal for me but after the send a pic whit this error any idea i will put more...
turn on login the os this one has the capitan and is fell some lag I wanna do hardware test can you help me whit that thank you this thing work's but no crime : )
I did other step I was checking the cpu vcore and I check some res around look ok next to it was u6100 I start check some res around and walla r6153 10k res was open I changed boom I have logo Cooll
Ok well I was able to fix tha problem the beep ram was the MEM_RESET_L 1k res was open. no more beep they pick up the memory. and now I have white screen no chime any help whit this
I will start to check the cpu vcore rail to see if a got something
one beep every 5 seg until shut down or manual turn off, I changed the c6990 because look funny after that turn on the screen one time no crime after that same beep again
I check the u6990 and got
pin1 1.26v
pin2 3.40v
pin3 7.06
pin4 3.42
pin5 gnd
pin6 18.73
pin7 nc
pin8 18.73
[SOLVED] 820-2879-B power on but just beep every 5 seg, no chime, video, green light
Hi I got this one today water damage (cofe juice)who know, no green light, check I have short to ground in F7040 fuse out, apply 12v to short side, u7000 got hot remplace, short gone green light...