820-2850 crashing randomly during boot up, already changed the 9560

nate8organic

New member
Have a 820-2850 fixed for a customer or so i thought by replacing the 9560. sometimes it will boot fully into osx and runs videos etc without any trouble last time i tested it for 5 hours of video playing sent it back and it was crashing on him every 10 min or less. I will get it to load into osx once and then i restart it to test again and it will crash during loading and keeps doing this until i turn it off for a bit and then re try it. everytime i test it i can get it to load into osx atleast once but crashes more than it will load in. I double checked my work on the 9560 and all is good. I checked voltage on 9560 and im getting 1.35v
Any ideas? weird to me it works fully sometimes. and when i try to run asd it crashes every time before it can load.
 

Gurmon

Member
Is there any panic logs in console ? This is where i would start before swapping stuff.

Have you swapped memory ? Have you eliminated possible bad ram slot ?
 

nate8organic

New member
Thanks for the response Gurmon.
Confirmed the ram slots are good.

panic report :

Anonymous UUID: F49DEE4D-212E-C413-5B6C-B352A1F826C8

Sun Dec 31 16:00:34 2000

*** Panic Report ***
panic(cpu 0 caller 0xffffff7f84a5f2ee): NVRM[0/1:0:0]: Read Error 0x00070000: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff909e6b1000 0x0a5480a2, D0, P3/4
Backtrace (CPU 0), Frame : Return Address
0xffffff8077062e60 : 0xffffff8003cf210c
0xffffff8077062ee0 : 0xffffff7f84a5f2ee
0xffffff8077062fa0 : 0xffffff7f84b2b052
0xffffff8077062fe0 : 0xffffff7f84ca93ac
0xffffff8077063030 : 0xffffff7f84d1b0ea
0xffffff80770632a0 : 0xffffff7f84d19981
0xffffff8077063440 : 0xffffff7f84b04211
0xffffff80770634d0 : 0xffffff7f84a350f2
0xffffff8077063600 : 0xffffff7f84a3b17a
0xffffff80770636c0 : 0xffffff7f84a63c82
0xffffff80770638b0 : 0xffffff7f84a65a44
0xffffff80770639a0 : 0xffffff7f865e1f49
0xffffff80770639f0 : 0xffffff7f865f2418
0xffffff8077063a20 : 0xffffff7f8662423e
0xffffff8077063a70 : 0xffffff7f865d60c8
0xffffff8077063ab0 : 0xffffff7f865d1f83
0xffffff8077063b00 : 0xffffff7f865d1f12
0xffffff8077063b20 : 0xffffff7f865ae3e6
0xffffff8077063b60 : 0xffffff7f849c4d6d
0xffffff8077063bb0 : 0xffffff7f849c4c80
0xffffff8077063bd0 : 0xffffff7f849c9b00
0xffffff8077063c60 : 0xffffff7f849c0c8c
0xffffff8077063c90 : 0xffffff7f84a1157e
0xffffff8077063ce0 : 0xffffff8004293211
0xffffff8077063d30 : 0xffffff80042ed3ad
0xffffff8077063d80 : 0xffffff8003dc4de2
0xffffff8077063dd0 : 0xffffff8003cf739c
0xffffff8077063e30 : 0xffffff8003cd3fe1
0xffffff8077063e80 : 0xffffff8003ce8387
0xffffff8077063f10 : 0xffffff8003df1fce
0xffffff8077063fb0 : 0xffffff8003ca3f66
Kernel Extensions in backtrace:
com.apple.iokit.IOGraphicsFamily(513.1)[578F9D07-96F4-3F09-A6A6-047F257CB3BA]@0xffffff7f849b7000->0xffffff7f849f1fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[57960DC6-4099-31BC-9B47-52CD647779C7]@0xffffff7f8


Model: MacBookPro6,2, BootROM MBP61.0057.B11, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f17
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)
Bluetooth: Version 5.0.3f1, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: IR Receiver
USB Device: FaceTime HD Camera (Built-in)
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: ZT-0ASMT-10510
USB Device: Card Reader
USB Device: Apple Internal Keyboard / Trackpad
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus:
 

Gurmon

Member
Graphics driver crashing, this is usually fixed by c9560.

You did replace with a non poly-tant capacitor right ?
 

nate8organic

New member
yep same as always. and never had this issue before. and unlike normal with the c9560 issue, you can run youtube etc. for hours when it does boot into osx and it wont crash.
 

Gurmon

Member
i think you should have 1.8V here. When i'm back in the workshop tomorrow i'll take a measurement on a known good board. Also i'll scope the output as i think it hold be a nice flat power line.
 

nate8organic

New member
Okay appreciate your help. i did check with a working board and it was also 1.35v, i was thinking the same thing at first. and should have said that on the l9560 i had solid voltage, pin 1 was 1.37 and pin 2 was 1.35.
 

larossmann

Administrator
Staff member
Do keep in mind that voltage will vary depending on what the GPU is doing at any given time. 1.35v is fine on that rail for this machine.

This could be anything and I would toss it at this point unless you want to delve into potential CPU/GPU/PCH issue on a 7 year old board.
 

nate8organic

New member
Understood, and i wish i had checked the voltage on the c9560 when it would crash just as "food for thought".

I'm with you on that one!
This board looks like a pos and when i first worked on it the board looked great then it came back in and it looked like liquid damage and the gpu glue looks like shit and the customer took it into another shop in there town multiple times to have them just take a look and they more than likely did something to it.

will def move on, i had it in the bottom of the shelf for a wile here because of this issue and the customer already had a replacement and was just looking to have it as a back up anyway.
Thanks for the help Louis!
Thanks for the drop in duke. judging the gpu looks like it has been heated, its a likely culprit.
 
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