I got out my soundcard and wifi-card and now the pc works again. Though i like to know the culprit. I managed to download and run all of the programs, the Windows 7 tool, RAMmon, and the CPUZ tool. I've got all of the relevant screenshots and files in a zip file. Incidentially, for some reason the uploader here will not accept the zip file. It's less than 2MB, and I can unzip and view the contents so it's not a corrupted file issue, When I try and upload it here I get a red error button in the uploader window, highlighting it with the cursor says Error 2038 and some other bits. So I put it on dropbox: https://www.dropbox.com/s/mkl1tly9u8rydmx/W7F_30-06-2013.zip View attachment RAMMon - SPD Info.zipView attachment CPUZ.zip Thanks in advance!