<div dir="ltr"><div dir="ltr">Hi Liam,<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 15 Oct 2024 at 15:56, Liam Proven <<a href="mailto:lproven@gmail.com">lproven@gmail.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">There are 6 different speed grades of DDR3 memory:<br>
DDR3-800 (PC3-6400)<br>
DDR3-1066 (PC3-8500)<br>
DDR3-1333 (PC3-10600)<br>
DDR3-1600 (PC3-12800)<br>
DDR3-1866 (PC3-14900)<br>
DDR3-2133 (PC3-17000)<br></blockquote><div>Looking at the labels on the memory modules, "8GB DDR3L 1600" so I'm guessing it is PC3-12800.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">You absolutely want matched pairs. Mismatched may work but it can be<br>
unreliable and that's no use.<br></blockquote><div>Yes, I bought a matching pair of 2x8GiB modules. Deliberately.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
So, now, my i7 T420 has 16GB, but the quad-core i7 W520 I am typing on<br>
has only 24GB because one module doesn't play nice. it has 2 8GB and 2<br>
4GB modules. I have two 8GB ones sitting in a bag that I can't use,<br>
and a matched pair of 4 GB modules seemed preferable.<br></blockquote><div>OK.</div><div> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
(I have an i5 T420 with screen issues that dual-boots FreeBSD and<br>
ChromeOS Flex, and I plan to try the leftovers in that.)<br></blockquote><div>Good luck!</div><div> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Reddit tells me that you can go at least 1 speed grade higher.<br>
<br>
<a href="https://www.reddit.com/r/thinkpad/comments/rxe1dc/can_anyone_recommend_me_2x8_gb_ram_sticks_to/" rel="noreferrer" target="_blank">https://www.reddit.com/r/thinkpad/comments/rxe1dc/can_anyone_recommend_me_2x8_gb_ram_sticks_to/</a><br>
<br>
So I would recommend getting at least PC3-12800 and preferably<br>
PC3-14900 modules. The machines will use them. With the integral Intel<br>
GPU you may get more benefit.<br clear="all"></blockquote></div><div>OK.</div><div><br></div><div><br></div><div>,</div><div><br></div><div><br></div><div>Ian<br></div><div><br></div><div><br></div><span class="gmail_signature_prefix">-- </span><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://github.com/ian-bruntlett/TECH-Manuals/blob/main/tm-free-software.md" target="_blank">https://github.com/ian-bruntlett/TECH-Manuals/blob/main/tm-free-software.md</a><br></div><br> </div></div></div></div></div></div></div></div>