<div dir="ltr"><div dir="ltr">Hi Peter,<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 25 Jul 2021 at 21:37, Peter Goggin <<a href="mailto:petergoggin@bigpond.com">petergoggin@bigpond.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<font face="Times New Roman">Can I run the 64 bit version of ubuntu on a X61s which only has 2
Gbyte of memory or do I need to increase the memory on the
machine?<br></font></div></blockquote></div><div class="gmail_quote"><br></div><div class="gmail_quote">I've looked up the technical details of the ThinkPad X61s and it looks like it supports up to 4GiB RAM, has 64-bit instructions, and, according to the hardware maintenance manual (*), it isn't a horrendous task to put upgraded memory in. I prefer to have more RAM or storage than is necessary, to put off having to replace systems sooner.</div><div class="gmail_quote"><br></div><div class="gmail_quote">My opinion only... it depends... The upside to running 64 bit software is that the processor has more and bigger registers and that in theory should improve performance. The downside is that any memory addresses stored will take up 64 bits rather than 32 bits, possibly putting pressure on memory consumption - worst case scenario, if pages are being swapped out of RAM, things can slow down. If it is at all practical - try it and see what happens.<br></div><div class="gmail_quote"><br></div><div class="gmail_quote">HTH,</div><div class="gmail_quote"><br></div><div class="gmail_quote"><br></div><div class="gmail_quote">Ian</div><div class="gmail_quote"><br></div><div class="gmail_quote"><br></div><div class="gmail_quote">(*) Hardware manual found here:-<br></div><div class="gmail_quote"><a href="https://tim.id.au/laptops/lenovo/thinkpad%20x60%20x60s%20x61%20x61s.pdf">https://tim.id.au/laptops/lenovo/thinkpad%20x60%20x60s%20x61%20x61s.pdf</a></div><div class="gmail_quote"><br clear="all"></div><br>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div>-- ACCU - Professionalism in programming - <a href="http://www.accu.org" target="_blank">http://www.accu.org</a><br></div>-- My writing - <a href="https://sites.google.com/site/ianbruntlett/" target="_blank">https://sites.google.com/site/ianbruntlett/</a><br><div>-- Free Software page - <a href="https://sites.google.com/site/ianbruntlett/home/free-software" target="_blank">https://sites.google.com/site/ianbruntlett/home/free-software</a><br></div><br> </div></div></div></div></div></div></div></div>