QOTW Answer! We asked: After you upgrade a desktop PC by installing a new PC133 DRAM module, you start the system and see that it is still identifying the RAM as PC100. What action should you take to determine why this is occurring? A - Flash the BIOS with the latest updates for this system B - Check the front-side bus speed of the installed processor C - Check the installed RAM to make sure that it is all PC133 DRAM D - Check the CMOS Setup to confirm that the system is configured properly for the new RAM The correct answers are B and C. In some cases, the system may detect the presence of the new RAM modules but not be able to correctly identify them. If the system’s front-side bus speed cannot be increased to the maximum capabilities of the RAM modules, the memory type displayed during the POST does not reflect the actual memory type installed. You should never mix memory types when upgrading a system board. If the new memory modules are not technically compatible with the existing memory, the old memory should be removed. Just because the memory modules are physically compatible does not mean that they will work together in a system. Mismatched memory speeds and memory styles (registered/unregistered, buffered/unbuffered, ECC, and so on) can cause significant problems in the operation of the system. These problems range from preventing boot-up to limiting the speed of the FSB to the lowest memory speed or creating soft memory errors.
Posted on: Wed, 12 Jun 2013 15:16:38 +0000
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