Memory voltage for new Haswell iMacs?
Hi,
Please, can somebody tell what is the correct memory voltage in new Haswell iMacs? 1.5v or 1.35v?
Thank you very much.
Best regards,
jjgonche.
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From OWC
Product Specs:
Technology: DDR3L SO-DIMM
Density: 8GB (8192MB)
RoHS: Yes
Pin Count: 204-pin
Op. Temp.: 0C to +85C
Data Rate: DDR3L-1600
Speed: PC3-12800
CL: 11
Cycle Time: 1.875ns
Voltage: 1.35V
ECC: Non ECC
Module Ranks: Dual Rank
Register: Non Parity
Low Noise 8-Layer PCB
Meets and/or Exceeds Apple/Intel Specifications
Fully Compliant with JEDEC specifications
RoHS Certified
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The Haswell iMacs support both "normal" 1.5 V DDR3 and "low voltage" 1.35 V DDR3L SODIMMs. In order to operate at the lower voltage level (which consumes less power and generates less heat), you must use all DDR3L modules, otherwise they will operate at 1.5 V since the memory bus can only be driven at a single voltage.
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Does this new iMac support the normal DDR3-type RAM and is it possible to combine the two?
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