Memory speed not right

I put two 1G ddr pc5300 memory in my powermac duel g5 late 2005 It comes up at 288 speed . Is their a firmware upgrade that will recognize the faster memory ?
I got the memory from curcel and used their online memory configuring .

I have the same thing. The computer isn't designed to recognize the 5300, so since it can't identify it, it assumes that it's the lowest memory it will recognize. You'll notice that besides thinking it's 288, it also says 3200 instead of 5300.
In fact, it works perfectly fine. Any memory tests you do, it should show up as fully functional.

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