Innoventions RAMCHECK LX, Руководство пользователя

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RAMCHECK LX OWNER’S MANUAL 4. RAMCHECK LX OPERATION
The RAMCHECK
LX test program uses
a very large number
of error messages and
test results. Only a
small portion of them
are detailed in this
section. Additional
error messages are
listed on the
application note
section of our web
site:
memorytesters.com
By pressing

a few times, you can scroll down through more error
information as discussed in Section 3.5.6. These include error address
information, actual write/read pattern information, and more details about the
test function type which caused the error to result:
Many other types of errors may be detected by RAMCHECK LX.
The following screen shows an Address Column error in address line A0 (pin
12) of Bank 1, Group 1.
We use Group1 or Group2 to describe how the memory device data bus is
mapped onto RAMCHECK LX’s internal 32-bit bus. Memory devices with
32 bits or less are directly mapped to Group1. Memory devices with 33 to 40
bits are mapped to Group1 and Group2. In Group2, bits 33 to 40 are mapped
to the most significant byte. The ‘00000004’ hex code indicates that the
above address error occurred only in the third bit of group 1.
All the errors are also recorded in the Test Log, which can be viewed by
pressing F4 from the STANDBY mode as described above.
The BASIC test
determines the
optimized frequency
(or the fastest access
time) of the tested
device. See Section 5
for details about the
more advanced Speed
Setup, which remains
in effect also after
you turn your
RAMCHECK LX
off.
ON-THE-FLY PARAMETER CHANGES
You can change some test parameters on the fly using our “one time”
override feature. Simply press F2 during the BASIC TEST to access this
function, and then make the necessary selection. Because this is a “one time”
change, the next memory device tested will be tested at your previous setting.
"One Time" Speed Override:
When testing DDR or SDRAM modules, the speed override feature allows
you to set a “one time” frequency override.
This kind of speed override is in effect only while the current module is
tested. To set a "one time" speed override, press F2 as stated above during
the BASIC test to reach the CHANGE-ON-THE-FLY screen, and then press
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