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Trying to upgrade my notebook processor (478 OR 479)

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May 1, 2007 10:37:00 PM

I've already gotten all the information on preparing my laptop except there is one problem. CPUID saids that my CPU is 479 pin while when i opened it up, th e socket on the motherboard says 478. The CPU is have is a mobile Intel Core 2 Duo T5500 on the mobile 945gm (SONY VAIO FE-890N)
May 1, 2007 11:07:53 PM

Kinda confusing, but the 479 is the mobile version of the 478 socket desktop family.

You say you got all the info.. from Sony? What info are you referring?

What CPU are you changing out for the T5500, or are you upgrading the T5500 to something else?

Also did you check if you needed a bios update in upgrading?
May 1, 2007 11:25:24 PM

Actually, there are both socket 478 and socket 479 Pentium M CPUs. I don't know of any core duo that came in 478. 478 was used in all Banias Pentium Ms and I believe a few of the low end Dothans (400fsb) and all the Celeron Ms (both Banias and Dothan).
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May 2, 2007 12:19:54 AM

I have a T5500 and am trying to upgrade to the T7200 (2 GHZ 4MB L2)
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May 2, 2007 3:17:03 AM

It's actually Socket M, which is Socket 479 version 2.0. Socket 478 and 479 are physically similar if not identical, but wired differently. The original 479 and your Socket M are a tad different in the pinouts, too.

I have an old Pentium 4-M that is a socket 478 chip yet the socket says 479. Why? Perhaps the manufacturers were making the ZIF part of the socket for the yet-unreleased Socket 479 Pentium M Dothan a bit early?
May 2, 2007 3:57:15 AM

Quote:
It's actually Socket M, which is Socket 479 version 2.0. Socket 478 and 479 are physically similar if not identical, but wired differently. The original 479 and your Socket M are a tad different in the pinouts, too.

I have an old Pentium 4-M that is a socket 478 chip yet the socket says 479. Why? Perhaps the manufacturers were making the ZIF part of the socket for the yet-unreleased Socket 479 Pentium M Dothan a bit early?


This man is correct.

Socket 479 is a mobile socket type, Socket M is also 479 pins but, as MU said, a different pinout. If you have a newer Pentium M, Core Duo, or Core 2 Duo, you have Socket M.
May 2, 2007 10:19:16 AM

Thank you guys, its already caming down the pipeline and should be installed in my laptop tomorrow
!