Here will it worked with a locked CPU (prob not at 1600), and the MC is more the determining factor than the mobo. There's a lot more to selecting DRAM than simply looking at a list, will it work with the mobo, Yes. And here you you suggest 1600 and 4 sticks, which also can be a problem, the CPU is not OCed and is only rated to 1066/1333 which seldom can run 4 sticks of 1600 (at 1600 anyway), this is also a prebuilt, prob with a locked BIOS that may not be able to even set up 4 sticks of native 1600 down to 1066 or 1333. item 2 acer g41t- ad g41t- ad( sn) ax1900 lga775 socket 775 ddr2 vga system motherboard 2. will it work, Yes.you say a 2x2GB set and say get two - mixing DRAM, even of the same exact model is a crapshoot, there are no guarantees. Simply saying DRAM will work on a mobo is only part of the whole process, i.e. Can you make adjustments to the DRAM (voltage/timings) if problems? Again prob not as prebuilts normally have a locked BIOS And here you you suggest 1600 and 4 sticks, which also can be a problem, the CPU is not OCed and is only rated to 1066/1333 which seldom can run 4 sticks of 1600 (at 1600 anyway), this is also a prebuilt, prob with a locked BIOS that may not be able to even set up 4 sticks of native 1600 down to 1066 or 1333. When they say Crucial memory will fit a specific model of motherboard or machine, it will. They bought Hynix when they went bankrupt a few years ago. They are the only American fab company that makes memory left. They are partners with Intel on NAND chips for SSD's.

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