Yesterday I got this drive and put it in my HP Pavilion DM4-2191us. There are two basic problems with the drive: The computer will always blue screen when you wake it from sleep (though not from hibernate). It won't do it any other time. Here is what it displays The read speed benchmark is sub-par. Average is about 120MB/s. Here is the benchmark. It's jagged and slower than the SATA II SSD in my desktop. What I've done: Tested the drive and memory different ways, both are fine I tried updating the SSD with the OCZ Toolbox for the new firmware before I installed Windows on it. For some reason it would never display anything other than firmware 1.3. Looked through the HP BIOS for any options, it is extremely bare and there are basically no options other than boot order. I'd like to get this ironed out before I leave for vacation for a week tomorrow morning. Thanks guys.