发明名称 |
Loop-Back Memory-Module Extender Card for Self-Testing Fully-Buffered Memory Modules |
摘要 |
A loop-back extender card is plugged into a memory module socket on a personal computer (PC) motherboard. The extender card has a test socket that receives a memory module under test. An Advanced Memory Buffer (AMB) on the memory module fully buffers DRAM chips on the memory module. The AMB inputs from and outputs to the test socket differential northbound lanes (toward a processor) and southbound lanes (away from the processor). The extender card has northbound loopback traces that connect northbound lane outputs from the memory module back to northbound-lane inputs to the memory module. Southbound loopback traces connect southbound lane outputs from the memory module back to southbound-lane inputs to the memory module. The loop-back extender card allows the AMB to perform loopback testing without modifying the PC motherboard. Series/shunt resistors can be placed on the loopback traces, or serpentine traces can be used to increase loopback delays.
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申请公布号 |
US7197676(B2) |
申请公布日期 |
2007.03.27 |
申请号 |
US20050908716 |
申请日期 |
2005.05.24 |
申请人 |
KINGSTON TECHNOLOGY CORP. |
发明人 |
CO RAMON S.;LAI TAT LEUNG |
分类号 |
G11C29/00;G06F11/00 |
主分类号 |
G11C29/00 |
代理机构 |
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