Kingston Technology 4GB DDR2 DIMM KVR400D2S4R3K2/4G Scheda Tecnica

Memory Module Specifications

4GB (2GB 256M x 72-Bit x 2 pcs.) DDR2-400
CL3 Registered 240-Pin ECC DIMM Kit

Kingston.com

Document No. VALUERAM0394-001.B00    06/23/06

ValueRAM’s KVR400D2S4R3K2/4G is a kit of two 256M x 
72-bit 2GB (2048MB) DDR2-400 CL3 SDRAM (Synchronous 
DRAM) “single rank” registered ECC memory modules. Total kit 
capacity is 4GB (4096MB). The components on each module 
include eighteen 256M x 4-bit (32M x 4-bit x 8 Bank) DDR2-400 
SDRAM in FBGA packages. Each 240-pin DIMM uses gold 
contact fingers and requires +1.8V. The electrical and  
mechanical specifications are as follows:

Clock Cycle Time (tCK) CL=3  

5ns (min.) / 8ns (max.)

Row Cycle Time (tRC)  

60ns (min.)

Refresh to Active/Refresh  

127.5ns 

Command Time (tRFC)

Row Active Time (tRAS)  

45ns (min.) / 70,000ns (max.)

Single Power Supply of  

+1.8V (+/- .1V)

Power  

3.888 W (operating per module)

UL Rating  

94 V - 0

Figure 1: KVR400D2S4R3K2/4G 240-Pin DIMM

Note: The module defined in this data sheet is one of several configurations available under this part number. While all configurations are compatible, the DRAM 

combination and/or the module height may vary from what is described here.