Problems installing RAM

I am trying to upgrade the RAM on my PC from 512MB to 1GB.

I have 3 slots on my motherboard and after doing Crucial's memory
scan and looking at their recommendations I decided to add one 512MB
RAM module to my two existing 256MB modules. I first put it into the
third and only empty slot and turned the computer on. It booted up fine
but reported that there was still only 512MB. I moved the new 512MB to
the first slot and one of the 256MB to the third slot. This time it
reported that there was 768MB or RAM.

At least I know that the new RAM works. I am wondering if there is a
problem with the third slot. Is there anyway of finding out about this?
One thing I did notice was the inside of the computer was extremely
dusty. Is there a safe way of cleaning it? Could it be that some dust
is blocking one of the connections in the third slot? (It has been open
the whole time I have had the computer)

Thanks for any help

David

.

Relevant Pages

  • Re: Advise on Memory
    ... install 250MB in each or just in the third slot. ... the performance to see if more RAM would be beneficial. ... Adding more memory can noticeably improve performance only if the ... Unfortunately there is no ready way of determing actual paging file ...
    (microsoft.public.windowsxp.general)
  • Re: Problems installing RAM
    ... you see all kinds of problems running ... RAM module to my two existing 256MB modules. ... the first slot and one of the 256MB to the third slot. ... Check the specs and see what it says about intermixing chips like that. ...
    (microsoft.public.windowsxp.hardware)
  • Re: No post error
    ... I removed the ram stick (in the third slot from the top), ... unplugged the power on the floppy drive and turned on the computer. ... is the first slot. ... with the ram is an easy first step to solving a no post error. ...
    (alt.comp.periphs.mainboard.asus)
  • Re: Problems installing RAM
    ... RAM module to my two existing 256MB modules. ... the first slot and one of the 256MB to the third slot. ...
    (microsoft.public.windowsxp.hardware)
  • Re: Dont Fix It if it is Not Broken (was Looking at Macs...)
    ... wound up too long and says too little of value for everyday Mac users. ... companies mentioned put the RAM modules in small vacuum chambers to ... companies said soft failures were less, ... So the net effect is that RAM module #1 is used all the time the Mac is ...
    (comp.sys.mac.advocacy)
Loading