05-14-2019 06:48 AM - edited 05-14-2019 06:49 AM
My encrypted Thinkpad T470 (2yrs old) has suddenly begun "crashing" during use. This doesn't seem to be triggered by any particular programs or user behaviour that I can identify, and once it happens it will occur again relatively soon if I restart it without a long rest.
What happens is that the screen goes black, and white boxes flicker in and out. Sometimes I see white lines near the top, which I associate with graphics card issues, but I've never seen this white boxes pattern before. The laptp will not project on an external monitor, so it's not just a display issue. It does not fully shut down when this happens, but rather requires a force quit in order to restart. It restarts normally until it crashes again.
Any ideas on what is happening here? Am I on the right track to suspect graphics card issues? Thanks.
05-15-2019 07:39 AM - edited 05-15-2019 07:41 AM
Hi DG16! Welcome to our forums community. Could you try booting to BIOS and check if the issue persist. The instruction is here: https://support.lenovo.com/us/en/solutions/ht500222. If yes, the issue is hardware. If not, run the hardware test from the Lenovo Vantage app. You can get it here: https://www.microsoft.com/en-us/p/lenovo-vantage/9wzdncrfj4mv?activetab=pivotverviewtab. This will help identify a hardware failure. If the issue is hardware, you can bring it to any of our list of authorized service centers. Here is the list: https://support.lenovo.com/in/en/solutions/ht118678?CID=ww:lenovosocial:20x9m6. You may also reach out to our support here: https://pcsupport.lenovo.com/us/en/SupportPhoneList?CID=ww:lenovosocial:20x9m6.