are these two modules interchangeable?

[Stephen Partington]

your workloads tend to cause shiny new things to develop an aneurysm.

On Thu, Sep 15, 2022 at 2:17 PM Michael Butash via PLUG-discuss <
plug-discuss at lists.phxlinux.org> wrote:

> It will usually figure out some level of compatibility that it *will*
> work, until you start getting weird segfaults or crashes for no apparent
> reason.  My new used laptop came with mismatched 2x2 16gb sticks and
> *worked*, but not something I want to test with 128gb of ram going into it
> when I tend to actually use it.
>
> I've dealt with it a few times in my life that it's worth some expense to
> avoid all that with matched sticks.
>
> -mb
>
>
>
> On Thu, Sep 15, 2022 at 11:08 AM Stephen Partington via PLUG-discuss <
> plug-discuss at lists.phxlinux.org> wrote:
>
>> Some laptops and NUC's are single channel or will default to that if they
>> cannot match for dual channel compatibility.
>>
>> On Thu, Sep 15, 2022 at 2:07 PM Michael via PLUG-discuss <
>> plug-discuss at lists.phxlinux.org> wrote:
>>
>>> interesting. well, I must be one-lucky-dog then! I mis-matched an 8GB
>>> and a 4GB with no ill effects.
>>>
>>> On Wed, Sep 14, 2022 at 6:01 PM Michael Butash via PLUG-discuss <
>>> plug-discuss at lists.phxlinux.org> wrote:
>>>
>>>> I would highly recommend NOT mixing and matching sticks of ram, this
>>>> has never ended well for me, particularly since most everything is
>>>> dual-channel configs these days and really need to be paired exactly per
>>>> bank.  If you do/must, match them up as close as possible in terms of
>>>> speed, cas/ras latency, etc, or only use the exact same ram down to the
>>>> model number.
>>>>
>>>> I've long ago stopped mixing and matching sticks of ram for weird pc
>>>> crashes, I always put them in as a set now.  Matched sets by batch are
>>>> best, or if needing a bunch of sticks for a server, buying a batch of same
>>>> sticks used of ebay out of the same server has been good to me too, just
>>>> make sure to run a memtest on them first to make sure they're good if
>>>> used.
>>>>
>>>> Likewise test if using off brand random sticks, they're probably cheap
>>>> for a reason ie. 2nd rate parts.  These days I only use samsung memory.
>>>>
>>>> -mb
>>>>
>>>>
>>>>
>>>> On Wed, Sep 14, 2022 at 2:34 PM Michael via PLUG-discuss <
>>>> plug-discuss at lists.phxlinux.org> wrote:
>>>>
>>>>> Thanks for the tip!
>>>>>
>>>>> On Wed, Sep 14, 2022 at 4:34 PM Stephen Partington <
>>>>> cryptworks at gmail.com> wrote:
>>>>>
>>>>>> if your motherboard/bios is well designed yes, they will run at the
>>>>>> slower speed. you can even encourage this compatibility by installing the
>>>>>> slower module in the first memory channel.
>>>>>>
>>>>>> On Wed, Sep 14, 2022 at 4:32 PM Michael <bmike1 at gmail.com> wrote:
>>>>>>
>>>>>>> Thanks! Does that mean both will be the slower speed?
>>>>>>>
>>>>>>> On Wed, Sep 14, 2022 at 3:31 PM Stephen Partington <
>>>>>>> cryptworks at gmail.com> wrote:
>>>>>>>
>>>>>>>> technically yes. but one is faster than the other.
>>>>>>>>
>>>>>>>> On Wed, Sep 14, 2022 at 1:57 PM Michael via PLUG-discuss <
>>>>>>>> plug-discuss at lists.phxlinux.org> wrote:
>>>>>>>>
>>>>>>>>> https://www.ebay.com/itm/324592214962
>>>>>>>>>
>>>>>>>>> https://www.ebay.com/itm/324588786229?mkevt=1&mkpid=0&emsid=e11050.m43.l1123&mkcid=26&ch=osgood&euid=928c7022651c489a853c83def083a70e&bu=44153278520&osub=-1%7E1&crd=20220913222229&segname=11050
>>>>>>>>> If they are, how is the more expensive one better?
>>>>>>>>> --
>>>>>>>>> :-)~MIKE~(-:
>>>>>>>>>
>>>>>>>> ---------------------------------------------------
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>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> A mouse trap, placed on top of your alarm clock, will prevent you
>>>>>>>> from rolling over and going back to sleep after you hit the snooze button.
>>>>>>>>
>>>>>>>> Stephen
>>>>>>>>
>>>>>>>> --
>>>>>>> :-)~MIKE~(-:
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> A mouse trap, placed on top of your alarm clock, will prevent you
>>>>>> from rolling over and going back to sleep after you hit the snooze button.
>>>>>>
>>>>>> Stephen
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> :-)~MIKE~(-:
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>>>>> To subscribe, unsubscribe, or to change your mail settings:
>>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>>>
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>>>
>>>
>>>
>>> --
>>> :-)~MIKE~(-:
>>> ---------------------------------------------------
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>>
>>
>>
>> --
>> A mouse trap, placed on top of your alarm clock, will prevent you from
>> rolling over and going back to sleep after you hit the snooze button.
>>
>> Stephen
>>
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>
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-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen
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