You will have to settle with 384 MB RAM.
(256 MB stixk for your system is ~ $50)
Chaky
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It's a motherboard thing. It just can't handle more than 256 MB in expansion slot. If there were fix for that (downgrading, if I may add) limit it would come in a form of bios upgrade. The upgrades offered on compaq site do not mention anything about memory capacity.
Only advice I can give you is don't use xp but win98. It's less memory-consuming system.
P.S. Post exact model (ex: 700a) for there are many presario 700 submodels. Maybe I was looking up the wrong one.
Chaky
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You may be able to add RAM beyond the recommended amount, but it will make you computer run slower...if it works at all. Machine as old as you people are talking about are picky about what RAM they will run on which become another consideration.
For those of you in doubt here is a little lite reading to enhance your understanding.
dcc
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Hi alewis63 and welcome to Daniweb,
You have hijacked an old thread (Aug 13th, 2007)
I don't know the answer to your question but you stand a better chance of someone assisting you if start your own thread and supply a lot more information about your machine, OS and problem.
Bob_180_Bob
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640 MB is the max. amount of RAM that little guy can take. You have one slot that can take 512 MB DDR max. 128 MB is soldered (for no good reason).
Games, you ask? Anything newer than the laptop in question would have hard time running.
Chaky
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Don't forget about silverlight. Something tells me that it will become a new HTML.
Anyway, to get back to the topic, previously I've digged out some info on Presario 700, and that info says that expansion slot for RAM takes up to 256 MB, but lincko here claims that his took 512, so don't hold my word on it. All I can tell you is what's in manual, and manual says 256.
You might consider streamlined and slimmed down version of XP. I'm not sure, but I think that if you own a legit copy of XP, you would not be in breach of copyright if you downloaded something like TinyXP torrent (don't know for sure, though).
Chaky
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BIOS upgrades come exclusively either from manufacturer of the whole machine (in your case DELL) or, unlikely, but possibly, from the BIOS makers (as in BIOS being a piece of software, usually programmed by Phoenix, AMI and such).
Malware in BIOS is always possible, but not in manner of BIOS upgrade. Rather the "usual"way through the normal every-day use, but those viruses would need to be highly specialized for certain types of BIOSes. I think that kind of malware is a thing of a past, with windows security leaking all over the place. I mean, why hustle with the BIOSes, if hacking XP is easier?
For the XP memory limit, it's 4 Gb for 32bit XP and 128 Gb for 64bit XP. (And yours is 32bit)
Chaky
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