Can larger ram fit in smaller capacity DIMM slot?

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Crunchybar

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I have an acer m7720, and due to lack of clarification when I was buying from Amazon, they've sent me 4gb dual kit of G-skill ripjaws x ddr3 1333 when I actually wanted x2 2Gb of dd3 1333 ram (the specs say up to 2Gb per DIMM slot)

My question is:
I have x4 4Gb of ddr3 1333 ripjaws. Will my board accept them and only read up to 2Gb per DIMM or will it simply say "no, how about you read the add on Amazon properly next time Sherlock!"?

I haven't opened the packet yet because I plan on sending them back if they won't work.

Thank you for your help.
 
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Hi,

Based on what I could find, the Acer Aspire m7720 contains an Intel x58 chipset. One of the limitations of this chipset is that it does not support 4 gigabit DDR3 SDRAM chips...
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Pinhedd

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Hi,

Based on what I could find, the Acer Aspire m7720 contains an Intel x58 chipset. One of the limitations of this chipset is that it does not support 4 gigabit DDR3 SDRAM chips, these are supported only on Intel 6 series chipsets and later. You will need to determine if the 4GiB DIMMs that you were sold are constructed from one rank of 4 gigabit chips, or two ranks of 2 gigabit chips. In most cases, a single-rank DIMM will have 8 DRAM chips all located on one side of the PCB while a dual-rank DIMM will have 16 DRAM chips, eight on each side.

The reason that your PC says "2Gb per DIMM slot" is that when the X58 chipset was released, 1 gigabit DDR3 chips were the norm and 2 gigabit DDR3 hadn't entered mass production. A dual-rank DIMM constructed from 1 gigabit chips has a total capacity of 2GiB, which is what Acer put on their marketing material. However, the X58 chipset should handle 2 gigabit chips for a total of 4GiB per dual-rank DIMM, 8GiB max per channel, and 24GiB max system wide.
 
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Crunchybar

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Thank you for your time my Motherboard is an acer aspire asm7720 x58 chipset.

G.SKILL F3-10666CL9D-4GBXL RAM Module - 4 GB DDR3 SDRAM - 1333 MHz DDR3-1333/PC3-10666 - Non-ECC - Unbuffered - CL9 - 240-pin DIMM x4

This is straight out of the service manual of the motherboard:

Memory Type: DDR3 1066
Support single channel 64 bit mode with maximum memory size up to 12GB
Support un-buffered DIMM (ICH10R)
DIMM Slot: 6
Memory Max: 1GB to 12GB DDR3 memory technologies
Capacity: Up to 2GB per DIMM with maximum memory size up to 12GB

I was just wondering, wether or not the motherboard would ignore the extra 2gb per stick a bit like it can down-clock the ram (my board will only read up to 1066 MHz while the chips I have are 1333 MHz)

Thanks for your time guys I appreciate it.
 
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