Is 4DKNR CN-04DKNR DAFM9CMB8C0 FOR DELL studio 1558, compatible with Intel® Core™ i7-920XM Processor Extreme Edition ? It has socket HM55 and socket type PGA989.
You must ask Dell what processors are compatible with THEIR bios.
An upgrade processor must be socket, BIOS, and chipset compatible.
Intel® Desktop Processor Upgrade Information
I was currently using i7-740QM, which is not working now. My only concern is that i7-920xm uses 55w power compared to 45w used by i7-740QM. Have you seen such an upgrade work properly, where there is an increase in power.
If the processor is supported, you should not have any problem.
However, only Dell can tell you if it is supported.
I found reviews on aliexpress.com of some buyers who upgraded to i7-920xm. One of them upgraded Dell precision 4500 from intel i5-540m.
Second buyer upgraded Dell vostro 330.
Third buyer upgraded intel i5-430m on hp probook 4520 s.
I hope dell laptops have similar bios.
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