Memory tester: Difference between revisions

Revision as of 23:12, 3 September 2012

Revision as of 16:13, 11 December 2012

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{{Cleanup|date=April 2009}}

'''Memory testers''' are specialized test equipment used to test and verify [[Volatile memory|memory modules]] typically in [[SIMM]] or [[DIMM]] configurations. It detects functional failures of memory modules.

== Types ==

Memory module testers can be broadly categorized into two types, [[computer hardware|hardware]] memory testers and [[software]] [[diagnostic program]]s that run in a [[Personal computer|PC]] environment. Hardware memory testers have more sophisticated and comprehensive test features built into the tester as compared to software diagnostic testing program. Software diagnostic does allow for detection of possible problems when memory modules are already installed on the computer system.

=== Hardware testers ===

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High-end automatic test equipment (ATE) Class Memory testers are used by most OEM memory chip manufacturers such as Samsung, Hyundai, Micron…etc. They are typically priced starting at one million dollars per system. This equipment must be operated by well trained semiconductor engineers. ATE Class Memory testers are built with very complex test algorithms to detect memory faults during the final stages of memory chip packaging.

Mid-range memory testers typically priced under $26,000 ,<ref>http://www.pcstats.com/articleview.cfm?articleID=1174</ref>, and are commonly found in memory module manufacturing assembly houses. These testers are built to support mass volumes of memory module testing. They are also used for detecting assembly faults caused by mis-soldering and cross-cell contamination after chips are assembled onto [[Printed circuit board|PCB]] or SIMM cards. These memory testers are usually docked onto an automatic handling system for high volume production testing, thus eliminating manual intervention by an operator.

Low-end memory testers are usually relatively low cost ranging from $1000 – $3000. Their main features are portability, ease of use and relatively small size. They are typically used by the service industry especially by computer service technicians, RMA departments, memory reseller/brokers/ and wholesalers for verifying and testing memory modules that fails in PC system or before going into PC. Quality and features of this range of memory testers varies greatly depending on the manufacturer. A good memory tester is built with features comparable with high-end ATE and medium range memory tester. The key is to provide a simple to use tester at an affordable price that is still effective in capturing most memory faults and failures.

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{{Reflist}}

[[Category:Computer_memoryComputer memory]]

[[Category:Utility software types]]