Thanks Saltgrass. I pulled out the 2nd memory stick. Boot still failed. However, the next time I went in to the bios, I saw that the system recognized my OCZ 90GB SSD, which it had stopped doing previously. I tried another clean install of windows 7. It worked. Reinserted the 2nd memory stick. Everything worked fine. Noticed I only had 19GB of 90GB available. Found that windows.old folder was the culprit. After checking properties of the windows.old folder: BSOD. Fortunately, windows still booted. Tried twice to delete window.old folder via Windows Disk Clean Up, BSOD both times. So the good news is, the system seems to be running fine. The bad news is, my SSD shrunk by 80 percent. Is this clearly a problem with the SSD, should I send it back? It is still under warranty.