Trying to install RAM

whenever you install new RAM in a mac, upon first boot up the mac needs to verify the new RAM. this process can take a minute or two. if it's still taking that long to boot up on the second or subsequent start ups, there may be an issue with the modules. follow Jack-19's advice and re-install the factory RAM modules. fortunately, you purchased your RAM from OWC. as long as you have your amazon invoice, (or have access to it online) and you left the OWC labels on the modules, you will have no trouble exchanging them. OWC provides excellent customer support.

PMACNYC wrote:

Just tried to upgrade my memory on my iMac 2017 using RAM according to the specifications. But when I installed it in the computer and tried to turn it on, the computer wouldn't boot up. There may have been a brief sound, but no light, and no power or response for at least 1-2 minutes.

Is this an issue with the RAM I bought? Or is there something I am missing?

Did you fully seat the new modules in the slots. Sometimes it takes a little more force to fully seat new modules into slots that have never had modules installed in them.

I would try again, only this time push a little harder on each module to make sure that each is fully seated in the slot.

see > https://support.apple.com/en-us/HT201191

Hi PMACNYC,

Try re-installing the original RAM and see if it works properly.

Cheers,

Jack

as an afterthought, if you are keeping the factory RAM installed and are adding the OWC ram to it, you should put the factory RAM in slots 1 & 2 and put the OWC RAM in slots 3 & 4.

Please return the RAM to Amazon and buy it directly from OWC at www.macsales.com. I have heard numerous reports of users that buy OWC RAM from Amazon claiming it is the correct RAM only to have problems. When it comes to RAM please only purchase direct from macsales.com or crucial.com!!!!!!

i've heard those horror stories too. but they mostly involve re-sellers selling the incorrect OWC memory for a certain mac. however, you will notice that with the link the OP provided, the RAM modules are sold by OWC. (although through amazon) so, in this case they did buy from OWC.

you're very welcome. i'm glad you got it sorted out. :)