My friend recently bought a new CPU (i7 9700k) to replace his old one (i5-6500). He soon found out that it didn't work (his motherboard wasn't compatible with his new CPU). To fix this, he thought resetting his BIOS would be a good idea, so he took the battery out for a few minutes and then replaced it. This didn't fix the issue so we decided to put the old CPU back in while the new motherboard arrived.
After putting the old CPU back in the PC would start as normal (apart from a few case fans not spinning) until it was time to load the desktop. Nothing loads, none of his startup programs load, you can't open task manager, it's completely useless. I initially thought that the cooler had not been replaced properly and that the CPU was throttling but the temperatures were fine (not sure about clock speeds, I'll ask him to check). We left it at this point as we had kind of come to the conclusion that resetting the BIOS had messed some things up and that it'd all be fixed with the new motherboard.
We tried the new motherboard and the exact same thing happens, The PC is completely unusable after start up. What could be causing this? It's still happening with a new CPU and motherboard so surely it isn't those? Could it just need a BIOS update, even though it happened on both types of motherboard?
Any help would be great, thanks.
After putting the old CPU back in the PC would start as normal (apart from a few case fans not spinning) until it was time to load the desktop. Nothing loads, none of his startup programs load, you can't open task manager, it's completely useless. I initially thought that the cooler had not been replaced properly and that the CPU was throttling but the temperatures were fine (not sure about clock speeds, I'll ask him to check). We left it at this point as we had kind of come to the conclusion that resetting the BIOS had messed some things up and that it'd all be fixed with the new motherboard.
We tried the new motherboard and the exact same thing happens, The PC is completely unusable after start up. What could be causing this? It's still happening with a new CPU and motherboard so surely it isn't those? Could it just need a BIOS update, even though it happened on both types of motherboard?
Any help would be great, thanks.