jimwaldriff Posted October 13, 2007 Share Posted October 13, 2007 I have a dell dimension 8400 with 1 gig memory from factory window xp media edition 512mb DDR2 533 mhz in slot one and three I installed value set DDR2 533 mhz two ram sticks of 1 gig each in slots two and four the PC would not boot up So I put the corsair memory in slot one and three and the dell memory in slots 2 and 4 and it booted up fine Is this a common problem thought i would pass this on to the members Jim Link to comment Share on other sites More sharing options...
Lutin Posted October 13, 2007 Share Posted October 13, 2007 Had a similar problem on a Dell Inspiron Notebook. Ram Guy told me not to mix memory for best performance :-) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 16, 2007 Corsair Employees Share Posted October 16, 2007 Yes that is not uncommon and we would not suggest mixing memory for best performance. Link to comment Share on other sites More sharing options...
sjschaff Posted March 24, 2008 Share Posted March 24, 2008 Yes that is not uncommon and we would not suggest mixing memory for best performance. I just tried adding 2x1GB Corsair in slots 1/3 along with working 2x512GB Corsair in my 8400. Didn't even get to beep let alone BIOS. Then swapped locations of the sizes putting the lower sized memories into slots 1/3, etc. System came up fine. Very strange..... Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 24, 2008 Corsair Employees Share Posted March 24, 2008 It is hit and miss with OEM systems as they do not give you much if any BIOS options you can change. Please look up your system on our memory configurator and only use the memory that was suggested. Link to comment Share on other sites More sharing options...
sjschaff Posted March 24, 2008 Share Posted March 24, 2008 I'm beginning to believe it is some sort of hidden problem with the system. It seems to "cache" information until things change. Swapping memory locations may be triggering electrical/EPROM or maybe EEPROM read/compares that then lets the system get moving. I would not have thought firmware was Plug and Play, but who knows.:): Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 25, 2008 Corsair Employees Share Posted March 25, 2008 Well its more like Plug and Pray sometimes but the modules SPD has a series of numbers when the MB will decode to get the timings and frequency to set the memory to. But if you install a module that is beyond the spec of the system it may not read it and give the Post code for no memory detected and or SPD not detected. Link to comment Share on other sites More sharing options...
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