Quick question - ddr1066 in ddr667 mobo?

[Cru54d3r]

Was looking at building a small server - happen to have an old p4 3ghz socket 478 with cpu cooler and just rma'd 4gb of ddr2 1066 memory - though dont have a motherboard

the only motherboard that supports ddr2 and socket 478 seems (others?) to be this asrock: http://www.asrock.com/mb/overview.asp?Model=P4i945GC

so my question is: will the 1066 memory run in the motherboard at 667? or will it just fail to recognise it?

thanks

 

[chipps101]

it should just clock down to 667

 

[mukhs11]

ram wont run @1066 will jus drop to 667 as chipps101 advised.