@ejn63 Thanks for the reply. I did however buy this https://www.amazon.com/dp/B0929F5NRJ?psc=1&ref=ppx_yo2ov_dt_b_product_details which is the DDR3L memory, still the same issue, it will just start, the fan will run at full speed, and the 1234 lights on the front will come on and nothing happens. It will not even show anything on the screen. There is no error code for that in the manual. I have the Bios upgraded to the latest version. well.
If I put in a single 2GB, then it starts, the fan will come up, it will slow down and then the screen will show the bootup progress.
A-Tech RAM is also a good brand with lifetime warranty. Good way to save $ on older/somewhat older machines. I've been using it for years.
To rule it out, try replacing the size 2032 CMOS battery if it's 5+ years old. Bad batteries cause many problems from boot to throwing erroneous error codes.
ejn63
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Posted February 2nd, 2024 13:43
This system needs DDR3L memory -- not DDR3.
https://www.crucial.com/compatible-upgrade-for/dell/precision-workstation-t1600