Resurrection!
It’s taken me a while but I finally got my dead 2008 MBP fixed. Found a repair shop in London who could replace the GPU chip properly. Got the laptop back the other day and it’s working perfectly and cooler running too.
Thanks to @dosdude1 for your advice so I knew exactly what to tell the repair shop to do and what part to use.
Interesting to hear that your GPU was correctly replaced by a UK repair shop. Could you pls share which one? Especially if your MBPro is still performing correctly.
As I've previously mentioned, if Europe to US shipping costs were not the issue I would have sent at least one logic board to dosdude1 for repair.
Another question - to LightBulbFun as you're in UK. Do you plan any MBPro GPU replacements similar to those of dosdude1?
How did you create the installer? With those 8600M chipsets, they'll either show some artifacting or not show any image at all when they fail.I got an A1260 (2.6 GHz, Early 2008 MBP) from ShopGoodwill a couple weeks ago, and have been unable to get an OS onto it. I have a retail 10.6 DVD, but the drive immediately ejects anything you insert, so I'll assume that is probably toast. So, I restored it onto a flash drive. The laptop tries to boot from that, but almost immediately goes to a Kernel Panic. Is that a sign of the graphics chip being toast, or do I have some hope of something less dire?
I simply used the "Restore" functionality of Disk Utility with the DVD as the source and the flash drive as the target. The flash drive is partitioned using GUID with a single partition.How did you create the installer? With those 8600M chipsets, they'll either show some artifacting or not show any image at all when they fail.
Have you got any other Mac with a working optical drive and FireWire-connectivity? Then you might start that Mac in TDM and get access to it's optical drive via FireWire an use it for booting up your A1260.I got an A1260 (2.6 GHz, Early 2008 MBP) from ShopGoodwill a couple weeks ago, and have been unable to get an OS onto it. I have a retail 10.6 DVD, but the drive immediately ejects anything you insert, so I'll assume that is probably toast. So, I restored it onto a flash drive. The laptop tries to boot from that, but almost immediately goes to a Kernel Panic. Is that a sign of the graphics chip being toast, or do I have some hope of something less dire?
That is a great idea. It is sitting installing via TDM now. Fingers crossed it works when it finishes. Thanks!Have you got any other Mac with a working optical drive and FireWire-connectivity? Then you might start that Mac in TDM and get access to it's optical drive via FireWire an use it for booting up your A1260.
KP might also be caused by something other than the GPU (RAM, otherwise defective board etc.), but since PCIe lane width is down, I'd try to fix the GPU first in order to see, if it can be temporarily mended - previous to a proper GPU-replacement, like @dosdude1 offers (read more on p4 within this thread).Sadly, this revealed that it is indeed the dreaded 8600M issue. After install completed, I still got the KP on boot. Booting into safe mode revealed horrible display artifacts, and the PCIe lane width is all the way down to x1.
My first MacBook was a Early 2008 17" 4,1 and thankfully I sold it in 2012 because I picked the same model in the 15" variety up for €50! I found an old Time machine backup and wanted to restore my old files on to it! The battery actually worked when it first arrived but after being put away for a few weeks it seems to have died!
In terms of those questioning how powerful it is... I legit edited Arri Alexa footage on the MacBook Pro in Snow Leopard with Final Cut Express and it worked! Posted a video of it here:I dual booted Catalina on it and I think the Laptop is too old for Catalina, but Snow Leopard runs great and the newest Chrome browser that supports Snow Leopard seems to work! Windows 10 works better on it than Catalina.
That said I'm wondering when the GPU will die, I have a feeling it's not a replacement Nvidia and it's a ticking time bomb which IS a pity because the original 17" I had back in the day had it's motherboard replaced with extended warranty and it got the new Nvidia chip. Do the early chips take advantage of the 6GB of ram or should it just be kept at 4GB as a single 4GB DIMM in DDR2 are pretty expensive for what it is...
I'm going to try bobesch's post and see if that improves performance in Catalina.
Just to be clear... what period do most think of as "early Intel"? I would say 2006 until 2008. The 2009 Intel Macs were a big step in performance all across the lineup.
Just checked: now it does not reboot but just freezes at 70% progress ...@bobesch - Does booting in Safe Mode work? Turn on and keep SHIFT held down until the login screen appears.
Check the GPU, I have seen this happen when the 8600M GT fails on these. If it's a non-revised chip, that's probably the issue.Boot-Loop on an early 2008 MBP4,1 A1260.
Got a cheap A1260 in not-working condition for spare parts.
Under the hood everything looks like never touched before even (or because) it was really packed with fluff (maybe that's why it died from overheating?)
Trying to boot the unit there's the "bong", screen is on and by pressing the ALT-key I can choose between internal-drive, FireWire-connected Mac in TDM or external bootable USB-drive. Then the light-grey screen with dark-grey Apple-logo appears and the progress bar reaches up to about 70% before booting stops and system reboots. Same result on all three above mentioned booting methods.
I've migrated logic-board & heatsink as one block to another MBP from which I've removed the logic-board before (previous owner hat messed inside that MBP and burned it's board beyond repair. Also messed with the GPU 😬, but he didn't mention anything in the auction).
Since that other MacBook was able to boot a few times before it's GPU finally died, and since I replaced RAM by two other RAM-bricks from another working A1260-unit, I'm sure, the logic-board is faulty and causes the boot-loop.
Anything I could try or any guess, whatsoever is causing the boot-loop?
Thanks for any help!
I didn't remove the heatsink yet since I ran out of thermal-paste ... but there's no green dot and I think, it carries the old NVIDIA G84-602.Check the GPU, I have seen this happen when the 8600M GT fails on these. If it's a non-revised chip, that's probably the issue.