Intel Core i7-640M SLBTN 2.8GHz 4MB Dual-core Mobile CPU Processor Socket G1 988-pin

I bought this little devil for my ASUS K52F-BBR5 laptop. I was hesitant that my motherboard would not be able handle it but I was mistaken. I upgraded the CPU(from a P6100) and the RAM(8gb from 3gb) at the same time. Initial startup was longer than expected but everything is running perfectly! I updated my BIOS to the latest version to make sure it was prepared. This fits in a 988A socket for the Intel HM55 Express chipset. My motherboard states its a 989 socket so there was a tad bit of confusion but I did extensive research before purchasing. It also arrived a week early! Kudos for that surprise.I originally upgraded to try to fix a overheating processor issue I've been having. Unfortunately upgrading did not fix the issue. I used Artic MX-4 thermal compound hoping to help. I'm still running a tad hot but the processor seems to run cooler at idle but jumps up rapidly while performing any tasks.

The CPU looked brand new and was packaged well. The seller included a wrist grounding strap and thermal compound which is a bonus. I used the CPU to upgrade an older Acer 5742-7645 that previously had a i3-370 processor installed in it that I keep as a backup and for testing purposes. Performance of the laptop increased by about 25% with this processor installed.

Worked with my Sony Vaio, and the company worked with me via trial and error to get the right processor.

Didnt see much improvement, fan is running awefully a lot at high speed than earlier when I had the i3 processor.Not sure if thats what you get from this processor

replaced the intel core i3 CPU in my laptop with a intel core i7. seems to noticeably improve it's performance.

Works great in my Lenovo Thinkpad L512. Noticably faster than the i5-540M that was in there before.

As expected. Quick shipping

OK --- as expected