Test: Kingston HyperX PC11000 DDR3

Kassens indhold

Der er ikke det store at sige om kassen. Det er en sort plastik-skal med en gennemsigtig plastik-skal over, for at beskytte RAMmene under transport. Men hvad kan man forvente til RAM? En undtagelse er naturligvis Corsair's Dominator-serie, men de er en helt anden klasse.

Specifikationer

Haps haps fra Kingston's hjemmeside:

HyperX DDR3* features

• 1.7 Volts operation
• Memory signal termination inside the memory chip (“On-Die Termination”) to prevent reflected signal transmission errors
• Operational enhancements to increase memory performance, efficiency and timing margins
• CAS Latencies: 5 (Ultra Low Latency) and 7 (Low Latency)
• Currently available in speeds up to 1.5GHz and capacities up to 2GB kits
• DDR3 memory modules are not backward compatible to DDR2 and DDR based motherboards, due to incompatible module connections (number of pins), voltage and DRAM technology. DDR3 memory modules have a different key or notch than the same-sized DDR and DDR2 modules to prevent their insertion into an incompatible memory socket. HyperX is available in single and dual-channel memory kits. 

VDDQ = 1.5V ± 0.075V

533MHz fCK for 1066Mb/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(DDR3-1066)

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 fly 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 then TCASE 85°C, 3.9us at 85°C < TCASE . 95°C

Asynchronous Reset

1066Mbps CL7 doesn’t have backward compatibility with 800Mbps CL5