Question about Dell Dimension 3100 PC Desktop

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Dell 3100 suspected overheat

Its a dell 3100 2.3 gig proc its just been upgraded to 1 gig of ram from 512 it refuses to boot into windows and even has problems gettin into the bois the screen freezes with random characters letters etc on the screen ive tried every solution i can think of resetting bois the works and cant for the life o me work it out i suspect overheating any ideas anyone ???

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It sounds to me like you have installed the wrong type of RAM, or it is not seated properly. Remove the RAM, and try to install it again making sure that it "clicks" into the slots. Also, look at the old RAM, and compare the numbers, if the RAM is the same speed, timing etc. as the new one, than you should be OK. Just make sure it is installed correctly. Match PC 2700 with PC 2700 etc.

Posted on Aug 05, 2009

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Sounds like a memory issue. Run memtestx86+ from a floppy or a CD.

Posted on Jul 23, 2009

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Try using Old RAM. If old RAM works well and new show the same behaviour, then new RAM timmings are not matching with the motherboard timmings. (

Posted on Jul 23, 2009

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Dell 3100 windows wont load after memory upgrade

Re-seat your memory modules and check to make sure you didn't knock any power or ide, sata cables loose or forgot to plug them back in when you were done working on the ram.

Also, make sure your RAM meets these requirements:

Type - 400- and 533-MHz DDR2 unbuffered SDRAM
Memory capacities per slot - 256 MB, 512 MB, or 1 GB non-ECC
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If it still doesn't work then test each RAM module separately with memtest86+ to find out if one is bad.

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Even if I think it is not teh case..i suggest to check the ram memory ..and see how much you have installed on your system ..remember that for windows Vista the minimum required is !G of ram ..and a CPU ..with speeds over 1,5 G ..(which is not teh case cause this one came with a fast cpu ) ..
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1024 is 1 gig of ram. Some older motherboards require you to put in ram in pairs but I don't think your system is one of those but if you have manual or can download manual you should check to be sure. If you don't need a pair then yes you can remove the 256 meg stick and add a 1 gig stick or you can put in 2 512 meg sticks. Should run a lot better as windows recommends at least 512 megs of ram.

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Your last results is running your comp OK because it is really only running on the 512 stick. When putting 2 different sizes together it will only run on the smallest, with this said here is a website it will test your comp to exactly what type RAM you need . I buy for my clients all the time from this website. Very reliable,Try it..and remember about the 2 sizes

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Did you add the two sticks with the 512 or remove the 512 and add the two 1gb sticks? Try booting the machine with ONLY the 1gb sticks in.

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