Sounds like the 2011 model's faulty graphics card issue, could be the VRAM which is generating the error.
There are logic board repair services out there who can resolder a new graphics card onto it. The last one I used cost around £200 and I believe the laptop is still running, by a company called VAIO Refurbs in Cumbria. _ Regards Sam Mullen +44 (0)7747778022 <tel://+447747778022> [email protected] <mailto:[email protected]> www.macambulance.com <http://www.macambulance.com/> MacAmbulance Ltd. Providing Affordable Mac/PC Support and Web Development MacAmbulance Ltd. is a registered company in England & Wales, registration number 8466597 This email is intended solely for the addressed recipients and may contain privileged or confidential information. If you have received this email in error please notify the sender and delete the email immediately. > On 21 Jul 2020, at 16:39, Martin Colbourne <[email protected]> > wrote: > > Hi and thanks for the add. Hoping someone might be able to assist ease. I > have a late 2011 i7 Macbook pro 15 running Yosemite. It froze whilst i was > workimg on it showimg vertical grey bars accross the screen for approx 10 > secs before rebooting itself to a blank grey screen. If i try to boot to web > repair it gets about a 3rd of the way along and then boots again to grey > screen. I managed to run hardware diag and it gave me a 4mem/62 error. I > removed and cleaned the 2 ram chips (2x 8) but still same. Anybideas please? > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/smug/af278e87-a677-496c-8c17-2762706b8dc7o%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/smug/C43F9741-6D96-4141-A05B-74B9CD90E976%40macambulance.com.
