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FAQ: RAMCHECK LX Memory Test Times


Q. How long does it take RAMCHECK LX DDR2/DDR1 to test a memory module?

A. It depends on the size and structure of the module, and which tests are performed.

Our proprietary test program is divided into sub tests: BASIC test, EXTENSIVE test, and AUTO-LOOP test. The BASIC Test is the first test performed by RAMCHECK, optimized to be performed in the least amount of time.

The following table illustrates some sample test times with JEDEC-standard modules. Please note that timing may change, depending upon improvement and changes to test algorithms.

Size BASIC Test Time EXTENSIVE Test Time
4Mx64 (32MB SDRAM) 3.6 sec 52.1 sec
8Mx64 (64MB SDRAM) 3.7 sec 52.8 sec
16Mx64 (128MB SDRAM) 7.1 sec 1 min 08 sec
32Mx72 (256MB SDRAM) 7.2 sec 1 min 51 sec
32Mx64 (256MB DDR) 6.7 sec 42.2 sec
64Mx72 (512 MB DDR) 13.1 sec 1 min 11 sec
128Mx72 (1GB DDR) 23.5 sec 1 min 16 sec
256Mx72 (2GB DDR) 40.5 sec 1 min 31 sec
32Mx72 (256MB DDR2) 8.0 sec 1 min 57 sec
64Mx72 (512 MB DDR2) 12.2 sec 2 min 11 sec
128Mx64 (1GB DDR2) 24.3 sec 2 min 38 sec
256Mx72 (2GB DDR2) 40.5 sec 3 min 06 sec
512Mx72 (4GB DDR2) 1 min 31 sec 6 min 07 sec
2Gx72 (16GB DDR3) 3 min 17 sec 8 min 12 sec

The BASIC test is sufficient for most of your regular screening and verification tests, since each memory cell is tested several times. The BASIC test also provides complete structure and speed information and it manages to complete all the device wiring checks. However, the BASIC test may not detect intermittent and/or pattern sensitivity problems due to its short execution time.

The EXTENSIVE test may take several minutes as it performs quite a few test phases. You can easily customize the RAMCHECK test program to skip any EXTENSIVE test phase in accordance with your preference. The RAMCHECK LX 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.

The AUTO-LOOP is our burn-in test, and therefore will run until you abort it.

If you have additional questions, please email us at support@innoventions.com.

CONTACTING OUR TECHNICAL SUPPORT DEPARTMENT

For more information, please call us at 1-281-879-6226 M-F 9:00-5:00 US Central Time, or send your e-mail to support@innoventions.com. Please remember to include your phone in your e-mail.


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RAMCHECK LX Testers
RAMCHECK LX Base Tester
RAMCHECK LX DDR3/DDR2
RAMCHECK LX DDR3
RAMCHECK LX DDR2