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Memory Module Specications
KHX1866C9D3T1K2/4GX
4GB (2GB 256M x 64-Bit x 2 pcs.)
DDR3-1866MHz CL9 240-Pin DIMM Kit
Keyed
Keyed
Keyed
SPECIFICATIONS
CL(IDD) 9 cycles
Row Cycle Time (tRCmin) 49.5ns (min.)
Refresh to Active/Refresh 110ns
Command Time (tRFCmin)
Row Active Time (tRASmin) 36ns (min.)
Power 1.800 W (operating per module)
UL Rating 94 V - 0
Operating Temperature 0° C to 85° C
Storage Temperature -55° C to +100° C
DESCRIPTION
Kingston’s KHX1866C9D3T1K2/4GX is a kit of two 256M
x 64-bit (2GB) DDR3-1866 CL9 SDRAM (Synchronous
DRAM) memory modules, based on sixteen 128M x 8-bit
DDR3 FBGA components per module. Each module kit
supports Intel
capacity is 4GB. Each module kit has been tested to run at
DDR3-1866 at a low latency timing of 9-11-9-27 at 1.65V.
The SPDs are programmed to JEDEC standard latency
DDR3-1333 timing of 9-9-9 at 1.5V. Each 240-pin DIMM
uses gold contact ngers and requires +1.5V. The JEDEC
standard electrical and mechanical specications are
as follows:
®
XMP (Extreme Memory Proles). Total kit
FEATURES
• JEDEC standard 1.5V ± 0.075V Power Supply
• VDDQ = 1.5V ± 0.075V
• 667MHz fCK for 1333Mb/sec/pin
• 8 independent internal bank
• Programmable CAS Latency: 5,6,7,8,9,10
• Posted CAS
• Programmable Additive Latency: 0, CL - 2, or CL - 1 clock
• Programmable CAS Write Latency(CWL) = 7(DDR3-1333)
• 8-bit pre-fetch
• Burst Length: 8 (Interleave without any limit, sequential with
starting address “000” only), 4 with tCCD = 4 which does not allow seamless read or write [either on the y using A12 or MRS]
• Bi-directional Differential Data Strobe
• Internal(self) calibration : Internal self calibration through ZQ pin
(RZQ : 240 ohm ± 1%)
• On Die Termination using ODT pin
• Average Refresh Period 7.8us at lower than TCASE 85°C, 3.9us
at 85°C < TCASE ≤ 95°C
• Asynchronous Reset
• PCB : Height 2.401” (61.00mm) w/ heatsink, double sided
component
• RoHS Compliant
Continued >>
Kingston.com Document No. 4805953-001.C00 07/18/11 Page 1
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continued HyperX
MODULE DIMENSIONS:
MODULE WITH HEAT SPREADER:
m
2.401
FOR MORE INFORMATION, GO TO WWW.KINGSTON.COM
All Kingston products are tested to meet our published specications. Some motherboards or system congurations may not operate at
the published HyperX memory speeds and timing settings. Kingston does not recommend that any user attempt to run their computers
faster than the published speed. Overclocking or modifying your system timing may result in damage to computer components.
Kingston.com Document No. 4805953-001.C00 07/18/11 Page 2