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#1
4gb ram(1.74gb usable) win7x64
hello i have a HP G62-407DX laptop win7x64 pro . for some reason it says its only using 1.74gb of ram and dont know what to do. so let me start from the beginning so that hopefully it helps. so i bought this laptop a refurbished model. within the first week i was getting all kinds of BSOD. and it said something about memory so i did a memory diagnostics test and it said the memory was bad. so i took out the first memory in the slot and did a memory test and it passed. so i went ahead and replaced the ram that i thought it was bad. i saw that the computer had 4gb of ram and using all of it but after a while it started showing that it was using only 1.74gb. this problem went away after shutting down the computer a couple of times but it came back. i tired solutions listed here but none of them work for example the use max mem under advance tab in boot was ticked off and also my bios doesnt have a remapped memory option either. whats weird is that if i switch the memory form slots computer wont boot up either. even though mem diagnostics says everything is fine. the layout is like this
slot 1 = (new) 2gb ram
slot 2 = original 2gb ram.
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by making the following arrangements computer wont boot up at all
slot 1 = original 2gb
slot 2 = no ram
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slot 1 = (new) 2gb ram
slot 2 = no ram
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slot 1 = no ram
slot 2 = new ram
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the only way this computer boots up is if i either have the original ram in the second slot by it self or
having the original ram in slot 2 and new ram in slot 1. but its weird though if the 1 slot was bad than computer shouldn't read the new ram right? but why it doesnt boot up if i only placed the original ram in slot 1 by it self.. hope this could be solved i stilll have guarantee do you guys think i should send it to hp?