Celeron M Socket 479: bga or pga?

snor

Senior member
Feb 3, 2006
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I am looking to upgrade my dolthan celeron CPU and I found some conflicting information regarding its package type.
CPU world says it is a Micro-FCBGA
while Intel says it is a Micro-FCPGA

http://www.cpu-world.com/sspec/SL/SL8MP.html
http://processorfinder.intel.com/details.aspx?sSpec=SL8MP

Does anyone know if there is a difference in the actual physical fit of the cpu's or compatibilities? I know the main difference is the manufacturing process between the two types, but I can't verify if that translates into physical fit on the board. Thanks for any information anyone can provide.
 

Aluvus

Platinum Member
Apr 27, 2006
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BGA has balls and is permanently soldered in place. PGA has pins and is replaceable. So yes, the difference is important.

I would trust Intel's Processor Spec Finder over any third party datasource. Intel's ARK lists 3 variants of the Mobile Celeron M 390, and both variants with the sSpec number you provide are listed as PGA. So if you're confident that you have the right sSpec number, you should have a PGA part.

If you open the laptop up, you should be able to tell definitively.
 

snor

Senior member
Feb 3, 2006
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Thanks, since I was able to extract the cpu that means it is most likely pga. This information helps greatly!
 

Arkaign

Lifer
Oct 27, 2006
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Just an FYI, if you have a Celeron M, it's most likely that you'll be confined to Pentium M processors for upgrades, unless you can confirm that a C2D or CD will work.
 

Aluvus

Platinum Member
Apr 27, 2006
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Just an FYI, if you have a Celeron M, it's most likely that you'll be confined to Pentium M processors for upgrades, unless you can confirm that a C2D or CD will work.

Good catch.

I am 100% confident that nothing from the Core 2 family will work, and 95% confident that nothing from the Core (1) family will work. Pins were re-assigned on the socket, making the different parts not compatible. However, most likely any Pentium M part will work.
 

hans007

Lifer
Feb 1, 2000
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Good catch.

I am 100% confident that nothing from the Core 2 family will work, and 95% confident that nothing from the Core (1) family will work. Pins were re-assigned on the socket, making the different parts not compatible. However, most likely any Pentium M part will work.

uh no.

there are a lot of core 2 based celeron M laptops out there. such as the celeron m 400 and 500 series, that can take some variant of socket M core 2 cpu, depending on the chipset that machine had.

they are pga also for the most part. intel probably sells a bga and pga version for companies that will solder it on the motherboard (like say apple)
 

snor

Senior member
Feb 3, 2006
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I agree, this gets quite confusing once there exists a few different types of celeron Ms. Hans is correct in that the 400 series and 500 series can take variants of core 2's because i have swapped it before. However, in this incarnation of socket 479, the pin configurations are indeed different than the socket P's that can take core 2's. The maximum speed I can attain is the fastest Pentium M chips, unfortunately...

there exists socket 479, socket M (rearranged 479), socket P and mobile i7's.