Test Times

1. Q. How long does it take SIMCHECK II to test a module?
   A. It depends on the size and structure of the module, and which tests are performed.
   
   Our proprietary test program is divided into four main tests: BASIC test, EXTENSIVE test, AUTO-LOOP test, and SINGLE BIT test. The BASIC Test is the first test performed by SIMCHECK and it is optimized to be performed at the least amount of time.
   

   Sample BASIC Test Times with existing firmware

   SIZE	BASIC TEST Time
   4Mx32	3.5 sec.
   16Mx36	19.2 sec.
   4Mx72 PC-100(with optional Sync DIMMCHECK 168)	5.4 sec.
   8Mx72 PC-100(ditto)	9.0 sec.
   16x72 PC-100 (ditto)	18.4 sec.
   32x72 PC-100 (ditto)	28.5 sec.

   
   BASIC test is sufficient for most of your regular screening and verification tests, since each memory cells is tested several times. BASIC test also provides complete structure and speed information and it manages to complete all the device wiring checks. However, BASIC test may not detect intermittent and/or pattern sensitivity problems due to its short execution time.
   
   EXTENSIVE test may take several minutes as it performs quite a few test phases. You can easily customize the SIMCHECK test program to skip any EXTENSIVE test phase in accordance with your preference. The manual includes details on what is accomplished at each test phase so that you can decide which test phases may be skipped in your customized test. Of course, skipping a test will shorten the overall test time.
   
   AUTO-LOOP is our burn-in test, and therefore will run until you abort it. The SINGLE BIT test should be used by technicians for module repair and to extract more advanced information about the module structure.

Please contact our Tech Support department for pricing information concerning the available upgrade services for your test systems.