Qhov sib txawv ntawm DDR2 thiab DDR nco Modules

Piv nrog DDR, cov kev txhim kho tseem ceeb ntawm DDR2 yog tias nws tuaj yeem muab ob zaug bandwidth ntawm DDR nco thaum tswj cov qauv nco nrawm. Qhov no yog tsuas yog ua tiav los ntawm kev siv ob lub cores ua kom zoo rau txhua lub cuab yeej. Raws li kev sib piv, tsuas yog ib qho kev ua yeeb yam ua kom muaj rau dd lub cim xeeb ntawm txhua lub cuab yeej. Technically hais lus, tseem tshuav ib qho
Ua ke nrog ob chav ceev cov ntaub ntawv tsis zoo, DDR2 nco yuav ua tiav rau 4 qhov ntawm cov ntaub ntawv ib zaug ntawm 2 qhov khoom ntawm cov ntaub ntawv uas tso cai DDR cov cai tuaj yeem daws tau. Lwm txoj kev txhim kho ntawm DDR2 lub cim xeeb yog tias nws siv FBGA ntim khoom siv tsis muaj tsoos.
However, although DDR2 memory uses the same DRAM core speed as DDR, we still need to use a new motherboard to match DDR2 memory because the physical specifications of DDR2 are incompatible with DDR. Firstly, cov interfaces sib txawv. DDR2 muaj 240 pins, thaum DDR nco tau 184 pins; Thib ob, VDIMM voltage ntawm DDR2 nco yog 1.8v, uas txawv ntawm 2.5V ntawm DDR nco.