Question 800Mhz ram on 400Mhz supported MoBo

Aug 25, 2019
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Actually, DDR2 wasn't around long enough for there to be low and high density variants, so just about any DDR2 you can find will work provided it has 400MHz timings in its SPD table.

Unlike AMD, those early Intel chipsets were also not the least bit picky, so I have never seen randomly mismatched sticks not work, even a stick of 400/3200 mixed with 1066/8500! I've actually done this on purpose to keep the RAM of a Dell (no adjustments possible in the BIOS) at 400 instead of 533 or 667, because I measured lower latency there, + it already matched the bandwidth of the limiting FSB at the slower speed. So it's OK to give just one new stick a try.

At my local recycler, used 2GB DDR2 sticks are only US$4 each so I would strongly suggest getting used with a DOA warranty like that, as new really isn't worth it for such an old system. The best part of stores like that is you could actually lug your system there and test it before you buy, to avoid multiple trips.
 
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lynx1021

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Feb 17, 2016
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Your max ram is 2-2GB sticks, that is barely enough to browse the internet but it will work. I have an old dell with 4GB that still works. PC DDR2- 533 (PC2-4200) would work the best.
 

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