Question Memory speed at 400 mhz

Dehghani_f1994

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Jan 31, 2016
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i have 3x DDR3 Corssair 2133 2g each installed. in Task manager it shows memory speed at 400 mhz. is this normal ?
Motherboard : x58 ud3r
CPU : corei7 950 3.06 rev.2
and what is Memory type ? my cpu says Memory type DDR3 800/1066. does that mean i can only run up to 1066 mhz ? my motherboard supports up to 1600 mhz
is there something i should do or it's running normally ?
CPU-z : NB frequency 2131.7 Mhz
DRAM Frequency : 532.9 Mhz
Speed shown in task manager : 400 Mhz

on My Rams it says 9-9-9-24
Voltage 1.65v

what should i do ?