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actually i think your right duke, because the trackpad cable is messed up and this is for a local shop who is going to swap that on there own so i didn't bother to mess with it, normally i would have replaced it. I will throw u5550 back on and send it out and have the shop see if the issue is...

Okay asd now reports TH1H, TH2H, TS0P,TP0P with u5550 removed.

smiba You were totally right bro! resoldered both u7300 and u5550 and everythings back to the way it was before. good looking out man. now will post back with new asd after i pull u5550 again.

yeah no chime, i figured the same thing when i was looking into u7300. i tried a pram reset also and now the only one fan spins on and off. cant seem to get it back to spinning up anymore, should doing a pram reset make it stuck in this loop? I guess this is probably for the better because...

i wasn't paying attention this morning and pulled u7300 and plugged the charger in and realized i messed up so i put it back on and then pulled u5550 and now i have no video. would pulling u7300 and plugging it in affect my video? also from the sounds of the fans after pulling the u5550 the...

I replaced u5550, R 5251 5250 5550 5552 5551 and C 2411 5552 5551 5550 and Q5501 and still high fan speed.. what have i missed?

customer sent in a 820-3330 he said he bought it used in 2012 and used it till 2014 when it stopped working right and left it untouched. First thing i noticed was liquid damage and previous repairs. When i test, powers on, in options the hard drive icons have lines slight lines through them...

yeah i set it to continue, first few times i tried to do it and it was running so slow i couldn't make it to continue before the drop bar closed. My customer is willing to wait so i bought some more donors. and will test the smc when they arrive and post back unless you suspect it could be...

Ran asd 4 times now, With only the IO error. no th1h. tried replacing smc but i only had one donor board on hand and it seemed to be no good, so i put back on the old one for now. going to order some in.

Got in a liquid damaged 3462. trackpad connector cable had corrosion and looked like pp5v_s4_cumulus was eroded away on the cable. next to smbus_smc so i suppose it had affected that line too. Did ASD and its showing th1H SMC IO failed. Checked U5550 and its good. Resistance on R5550, R5551...

Good to know. Thanks duke.

duke is right there is no other way to get smc from the right board model. and even if you could its not going to be much cheaper than buying a whole donor board to use. if your know how is there you can pull and replace without reball most of the time. i don't even own a stencil for smc. if...

got in liquid damaged 3115. c7526 was completely burned off the board. ran a wire there and changed out a few components around it. smc area seemed to have green corrosion, already did a reflow. first i checked one wire. im getting 3.34v on smc_bc_acok and pp3v42_g3h, i have .19v on u6900...

fixed it. i found c5401 was missing could this have caused the issue? only asking because i reflowed the smc and then spotted the part missing so i put it on and the board was working. so couldn't tell if the smc re flow helped or not but am curious to know. anyway its fixed now. Thanks.

no no power cycling. just a quick spin and stops. I am aware of that. am going to try the smc and work from there. Cheers

okay thanks. the fan spins only for a few seconds then it stops entirely. i did replace the clock chip as it was nasty and there was stuff near smc so i guess i will try a reflow there. for some reason when tracking down the issue with pp5v_s0 i found that slp_s3 was not there but i must be...

just to make sure p3v3s0_en_L is p3v3s0_en? because there is no p3v3s0_en in the board view or pdf. pin 3 on the q7812 is p3v3s0_en i have 3v there not 0v. what is wrong or am i doing wrong?

have a second 3115. It is missing pm_slp_s3_l i have no pp3v3_en i have no pp5v_s0_en. serious liquid damaged corrosion throughout the board. i replaced anything that looked fried/ burnt. the boards fan spins for a second then turns off. if i smc by pass the fan stay on. u4800 are was...

You do not need a stencil for replacing the smc. if you take the smc off super clean and re seat the new one super clean you can do it with out a stencil. i do not have a stencil and i do all smc replacements free hand. no troubles other than having to take it of and clean it up and putting...

Yes i have 3v3 on _EN. Res is 13k on c7830 pin 1. 102.8k on pin 1 of c7830 and 11.4k on pin 2.