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- Desktop Hardware and Upgrade Questions
- Upgrading/replacing RAM memory card(s)

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09-09-2022 04:42 PM
re: my total & complete ignorance about 'latency' (and these other specs)
Since unable to determine (even via HP Sales!) exact RAM specs used in new pc
(awaiting it's availabilty); I've referenced several various memory card vendors,
suppliers, even RAM manufacturers to provide specifics. For 2x8gb, all advertise:
"PC4-25600, 1.2V, SDRAM, 288-pin, NON-ECC, Unbuffered, DDR4-3200MHz."
But then each differentiate on 'latency'?? Seems everyone has a different answer:
"CL16-x-x-x", "CL19-x-x-x", "CL20-x-x-x" (even same CL's have various 'ratings' in
the "x" spots)? AND some say "DIMM", others "UDIMM". How do I know correct.....??
09-10-2022 02:35 AM - edited 09-10-2022 02:37 AM
hi
You will rarely find this type of information for hp computers, and perhaps other manufacturers!
You will mainly be given the most basic, and which is sufficient for many users..
This also works for other components such as graphics cards for example, while there are different characteristics
https://us.msi.com/Graphics-Card/GeForce-RTX-3080-SUPRIM-X-10G-LHR/Specification
NVIDIA® GeForce RTX™ 3080 (10 GB GDDR6X dedicated) with LHR
be aware that hp may use different memory models for the same computer, depending on availability
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09-10-2022 01:43 PM
Your telling me!! 🙄
All this started when realized desktop only comes with ONE memory card (16gb) and although
know little, have heard many, many times "stupid to have ONE card vs TWO". So since can't find
out exact card HP installed; once receive pc. will pull it out and add TWO of SAME cards (2x8gb).
Dozens of available 'fancy' cards (as low as $40-$55/pair1) state "compatible"; but then each has
variety of 'latency' specs (which I do NOT understand) whether it's "CL" spec or the "x-x-x" specs??
09-11-2022 01:44 AM
sorry i don't understand what you are saying..
but you can use software to check what's in place if you need to replace / add memory
Knowing that in many cases, it will be necessary to change the two modules
https://www.electronicshub.org/how-to-check-ram-cas-latency/
https://www.tomshardware.com/reviews/cas-latency-ram-cl-timings-glossary-definition,6011.html
knowing that for some users / configuration, the difference will not be much noticeable
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