Optiplex 3040 SFF Memory upgrade

Question

I have an OptiPlex 3040 SFF with 1 8Gb memory module installed.  I wish to upgrade to 16Gb, so I purchased another 8Gb memory module (1.35V 1600)  I purchased a used module with the same part number (MT16KTF1G64AZ-1G6P1). When I install the purchased memory in slot 2, I get the power LED blinking orange.  I tried the purchased module by itself in slot 1 and I still get the orange blinking LED.  I then reset the BIOS by removing the battery and holding the power switch on for 10 seconds.  I installed both modules and I get the orange blinking LED.  I then put the original module back into slot 1 and the computer booted normally with the BIOS message to reset date / time. My conclusion is that the purchased memory module is bad.  Is this correct?   Attached is a photo of the memory modules, the one with the red dot is the purchased memory module.

Mary G · Accepted Answer

Sounds like it is bad. Testing alone is the best test and it failed. Go to Crucial to get guaranteed memory. Try and return the bad chip.

https://www.crucial.com/usa/en/compatible-upgrade-for/Dell/optiplex-3040-small-form-factor

bill71 · Answer

Yes, that is what I figured too.  Just wanted to make sure I did not miss anything.   I'm also looking at this https://www.newegg.com/Product/Product.aspx?Item=N82E16820226684

Da_Vinman · Answer

In a scenario like that, where the same part number won't even work alone in a working system, then yes, odds are that the new memory module is defective and needs to be exchanged.

Rocketeer3000 · Answer

Was is defective memory? , did they change it and did it work with the new 8gb one?

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