Dell E6510 i7 cpu upgrade - blank screen & fans don't turn

hi all, i own a E6510 that has an i5, and recently bought an i7-720qm cpu from ebay and it won't boot, nothing shows up on screen, not even the fans turn but the power led turns on for a few seconds and then goes out. the old cpu code is SLBNB and the new cpu code is SLBLY

could the cpu be bad?

 

Did your motherboard have the Intel HD graphics? If you do, you cannot go to the Clarksfield quad core i7's, as they do not have the IGP on the CPU.

 

damm.... i thought all i3/i5/i7 have integrated graphics on them (yes, I've an IGP)... which i7 do 'i need to look for, thanks

 

Nope only Arrandale based i3/i5/i7 have Intel GPU on CPU. Only dual core i7's support IGP.

 

thank you very much for your quick replies

 

Wait, what about the guy who upgraded his E6410 to an i7-720QM?

http://forum.notebookreview.com/del...48126-dell-latitude-e6410-i7-720qm-works.html

 

j0ker had an E6410 with Nvidia Quadro 3100M graphics, so it would just run the discreet graphics + i7 quad core.

 

I'll update this thread shortly. Trying to get an 820QM or 840QM to drop in my wife's E6410 (currently 620M). It does have the nVidia Quadro card in it. Figured I have to take it apart to replace the fried wireless card so might as well drop $100 on it for a CPU while I'm in there. If I can't win the bids on the 8xx unit I can get a 740QM for $110 BIN and that'll do. Unless someone here has something for $100 shipped...???