johnpiehl Posted December 8, 2006 Share Posted December 8, 2006 Computer - Sony Vaio laptop (PCG-K13) Memory - Corsair 512mb DDR PC2700 (CMSS512MB-333SOD) x two modules BIOS - Phoenix (ver. R0107X1) Background - Sony website states this model is upgradeable (memory) from the original 512mb (two 256mb modules) to 1Gb. I originally purchased two Corsair modules (Value Select) that met the Sony specifications. Those modules booted and ran fine, but BIOS wouldn't recognize them as 512mb modules. BIOS recognized them as 256mb modules. Thinking I had an imcompatability issue, I purchased and installed two Corsair 512mb "System Select" modules that are recommended specifically for the Sony PCG-K13. Problem - No matter which slot, or combination of memory modules I use, the 512mb modules are not recognized by BIOS as 512mb. They are always recognized as 256mb modules. The computer boots and runs fine with the new 512mb modules, passes the Microsoft memory test program, but refuses to correctly recognize the actual size of the modules. Various diagnostic/test programs all confirm that the new ram meets spec.s, but these programs also recognize the modules as 256mb. This leads me to believe that the problem is likely BIOS in origin. BIOS is very limited and does not permit changing the RAM values. I have had three "chat" sessions with Sony rep.s, but although they are sincerely trying to be helpful, they haven't been able to offer any helpful suggestions. By-the way, if I only install one of the 512mb modules, and leave one slot empty, the computer continues to incorrectly recognize the one module as a 256mb unit, but the second slot correctly as empty. Any suggestions will be grately appreciated. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 9, 2006 Corsair Employees Share Posted December 9, 2006 Those modules should work with that system I would suggest contacting our customer service and see if there is anything they can do to get you another set that will work with that system. Please call them at 888-222-4346 on Monday after 8 AM Pacific time! Link to comment Share on other sites More sharing options...
SpDFrek Posted December 11, 2006 Share Posted December 11, 2006 The modules should have a bar code on them with 7 digit # that starts with 06. Can you list that #? Do the memory modules that you have from Corsair have 4 chips per side or 8? Link to comment Share on other sites More sharing options...
SireJoe Posted April 17, 2007 Share Posted April 17, 2007 My problem exactly!! Expect my computer is a PCG-K23. One person asked if there are 4 or 8 chips per side. Mine has 4 per and is supposed to be 512MB dimms. ANy help would be GREATLY appreciated! My dimms have a # on them as well. It is: 07110421-0-851125 Thank you! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 18, 2007 Corsair Employees Share Posted April 18, 2007 I am sorry but that is not our modules part# Please tell me our modules part and if you are trying to mix them with other memory, and what is the make and model of your MB and or system? (How To Read the Memory Label) Link to comment Share on other sites More sharing options...
raspberrywine Posted April 25, 2007 Share Posted April 25, 2007 I am having the exact same problem, only with a PCG-K25. No matter what configuration I put them in, the system only recognizes 512MB of memory. I am trying to upgrade to 1 GB of memory (2x512 MB replacing 2x256 MB) and I'm using Corsair's value select 512 MB PC2100 modules -- I used the memory configurator on the Corsair website to identify these (VS512SDS266). I had previously just gone to Best Buy and bought two modules that I thought matched my specifications, but after having the same problems, I doubted my choice and returned those and went to buy a set of modules "guaranteed" to be compatible with my machine. Now that it's happened a second time, I suspect that my initial purchase wasn't the problem. Because this is the second time this has happened, I'm wondering if something more is going on, specific to my machine or to VAIOs. Did any of the other users with these problems ever come up with a solution? Thanks! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 26, 2007 Corsair Employees Share Posted April 26, 2007 Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them or it. Link to comment Share on other sites More sharing options...
iltuocapo Posted July 14, 2007 Share Posted July 14, 2007 Hello all I own a Sony VAIO PCG-K315S. I checked on VAIO recommended memory upgrade options and they say that 512MB DDR 333 modules are supported. I therefore bought 2 x VS512DS333/EU modules from a local (Italian) reseller but my Vaio insists in recognising them as 256MB modules. What can I do? Thanks for help A. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted July 17, 2007 Corsair Employees Share Posted July 17, 2007 That is Max 512 Meg of memory using 2 256 Meg modules. Please see if the reseller will let you replace them with the correct module listed in our memory configurator. Link to comment Share on other sites More sharing options...
vaiopcgk45 Posted July 20, 2007 Share Posted July 20, 2007 Hi, Same problem, got 2 modules VS512SD333 exactly specified by the memory configurator and got max 512mb expecting 1gb. RMA'ing to newegg :(: What if they say no? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted July 20, 2007 Corsair Employees Share Posted July 20, 2007 What is the make and model of your system. Link to comment Share on other sites More sharing options...
orphix Posted December 23, 2007 Share Posted December 23, 2007 I have pcg k13 vaio laptop and it is acting the same. is there a resolution for this? cpuz sees the ram fine but not the BIOS and the OS. my memory that i got btw are 2 VS512SDS333 Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 26, 2007 Corsair Employees Share Posted December 26, 2007 How much memory shows with just one module installed? Link to comment Share on other sites More sharing options...
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