Laptop won't start with a stick of RAM?

Question

Iron

The laptop turned off and did not turn on, there is 19V power, the essence of the problem is that when the RAM stick is inserted, the laptop constantly reboots to the BIOS - the cooler starts spinning, stops, and so on in a circle. If I pull out the RAM bar, the cooler starts spinning - but it does not start, because it is logical that there is no memory in the laptop. I inserted another stick of RAM, obviously working, the same problem - it spins cyclically and stops. Where to dig? Bios measured the battery - everything is fine.

Answer 1

Dig towards memory compatibility. For example, on one of my beeches I had the following loading with the old module, shutting down, inserting a new one, a successful launch before shutting down. Cured by installing a rare single side 16 chip module

Answer 2

1.If the RAM bar previously worked with this laptop, then the bar could have deteriorated. For example, from static. You can try using a different slot.
2. RAM must be compatible mechanically, electrically and memory chips must support i RAM controller.
For example, a chip in RAM with a size of 512 MB, and the controller supports only 256 MB.
The latter rarely happens, but this happened to me with ddr3.

Answer 3

slot one for memory? maybe the ram is not compatible with the laptop

Answer 4

And what about RAM? Well, yes, if there is no RAM, the chipset will not start up completely and will not be able to reboot the system, which is what you are seeing. Maybe the chipset is covered, maybe something else. We need normal diagnostics - look at the POST log, measure the voltages on the components.