Mike_27 Posted October 31, 2005 Share Posted October 31, 2005 I noticed you have 2 very similar 512MB memory modules. The model numbers are VS512MB266 and CMSS512MB-266. Why does your website suggest using model number CMSS512MB-266 for the Dell Dimension 4400 PC. It seems as if both of these models are compatible with this Dell Dimension 4400 PC. The only difference I see here is the price listed on newegg.com (a difference of about $20). What is the exact difference between these 2 model numbers? Link to comment Share on other sites More sharing options...
RJLeong65 Posted October 31, 2005 Share Posted October 31, 2005 I noticed you have 2 very similar 512MB memory modules. The model numbers are VS512MB266 and CMSS512MB-266. Why does your website suggest using model number CMSS512MB-266 for the Dell Dimension 4400 PC. It seems as if both of these models are compatible with this Dell Dimension 4400 PC. The only difference I see here is the price listed on newegg.com (a difference of about $20). What is the exact difference between these 2 model numbers? The exact difference is that the Value Select (VS512MB266) modules need a bit of tweaking to work on a given system, and should not be mixed together with existing OEM memory - while the System Select (CMSS512MB-266) modules are guaranteed to work on an OEM system such as your Dell and can be mixed together with existing OEM memory. You pay a premium for guaranteed universal compatibility, in this case. In other words, the VS512MB266 is for BYOPC (Build Your Own PC) systems and OEM-built systems that use regular off-the-shelf motherboards and BIOSes, while the System Select is for OEM systems that use OEM-specific motherboards and/or custom, OEM-specific BIOSes (such as your Dell). Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 1, 2005 Corsair Employees Share Posted November 1, 2005 The VS256MB-266 and CMSS256MB-266 modules are functionally the same. CMSS parts are built with a restricted bill of materials deemed to provide the best compatibility with OEM systems. As such, we often do not have the capability to use low cost material. I expect that the VS part will work correctly in your system. And, of course, Corsair's lifetime warranty is in full effect if it does not. Our confidence of first pass success is highest, however, with CMSS parts. Link to comment Share on other sites More sharing options...
Mike Gha Posted March 5, 2006 Share Posted March 5, 2006 The VS256MB-266 and CMSS256MB-266 modules are functionally the same. CMSS parts are built with a restricted bill of materials deemed to provide the best compatibility with OEM systems. As such, we often do not have the capability to use low cost material. I expect that the VS part will work correctly in your system. And, of course, Corsair's lifetime warranty is in full effect if it does not. Our confidence of first pass success is highest, however, with CMSS parts. I am in the same boat as Mike_27. Have you heard of problems with the use of VS memory, instead of the recommended CMSS? Also, keep in mind that my added stick is a 512MB to the existing 256MB which came with my Dell. Link to comment Share on other sites More sharing options...
CandyKid Posted March 5, 2006 Share Posted March 5, 2006 Yes, there can be issues adding VS modules to existing memory. Your BEST chance for compatibility is to go with the CMSS module if you wish to add it to an existing memory, or VS if you're going to REPLACE your existing memory. PLUR CK Link to comment Share on other sites More sharing options...
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