PC won't boot up when using dual channel RAM placement

my laptop task manager said i used 1 of 2 ram slot even though im ram slot 1 and 3 If you look at your RAM slots in the motherboard they are usually numbered 1-4 from the CPU outwards with the slot closest to the CPU being ramesses riches slot In our test machine's case, there were four slots that received numbers 0-3 instead of 1-4 Even if a memory card gets assigned to slot zero,

ramai slot If all the RAM slots of your motherboard are functional, you can put the RAM module in any slot However, if you refer as “any slot” to DDR1,