DDR3 1866 in a 1066/1333 motherboard

frenzal

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Aug 18, 2008
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Hey everyone, my friend just purchased a computer with my recommendations for pieces but he changed the motherboard for a cheaper one, which coincidentally only supports 1066/1333 ddr3.

I put the whole thing together and when we post tested it, I would get no signal to the monitor, only later did I realize the difference in frequency.

So my question is, is 1866 ddr absolutely incompatible in a 1333 motherboard.

The motherboard is a P8H67-M Evo by Asus and the ram is a set of G.Skill Ripjaws.

The computer won't post, I just get no signal to the monitor.

Thanks for your time guys!
 
Solution
Correct, on ANY H67's use either 1066 or 1333 MHz RAM. The DDR3 1866 MHz RAM may have a compatible JEDEC 667 {DDR3 1333} 'SPD' but it's not anything that I would recommend using in your situation. The newer Z68's can indeed run DDR3 1866 MHz.

Try booting with (1) stick - Blue slot closet to CPU, once in the BIOS note the DRAM Frequency per the menu, select DDR3-1333 MHz then shutdown and try the second stick. The RAM must be installed in the Blue colored DIMM slots.

However, my best advice is to get a 2x4GB kit DDR3 1333
$63 F3-10666CL9D-8GBXL -> http://www.newegg.com/Product/Product.aspx?Item=N82E16820231426
$79 F3-10666CL7D-8GBXH -> http://www.newegg.com/Product/Product.aspx?Item=N82E16820231440
Correct, on ANY H67's use either 1066 or 1333 MHz RAM. The DDR3 1866 MHz RAM may have a compatible JEDEC 667 {DDR3 1333} 'SPD' but it's not anything that I would recommend using in your situation. The newer Z68's can indeed run DDR3 1866 MHz.

Try booting with (1) stick - Blue slot closet to CPU, once in the BIOS note the DRAM Frequency per the menu, select DDR3-1333 MHz then shutdown and try the second stick. The RAM must be installed in the Blue colored DIMM slots.

However, my best advice is to get a 2x4GB kit DDR3 1333
$63 F3-10666CL9D-8GBXL -> http://www.newegg.com/Product/Product.aspx?Item=N82E16820231426
$79 F3-10666CL7D-8GBXH -> http://www.newegg.com/Product/Product.aspx?Item=N82E16820231440
 
Solution