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StatikSA

No boot with 3rd RAM stick after upgrade?

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Posted · Original PosterOP

Recently upgraded my PC, i have 3x 4GB DDR4 Kingston sticks (all same specs). All worked on my previous CPU and showed 12GB in WIndows


Now that i put in the new CPU it is not booting if i put the 3rd stick leaving me with only 8GB, it will only boot with 2 sticks.

Any idea? Thanks

I tried 1 by 1 and different slots, reseating etc no luck.

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what was your previous cpu, current cpu and motherboard? 


Intel Core i5-8400 / ASRock Z370 Pro 4 / Hyper 212 Evo / 16GB DDR4 @3000 / MSI RTX 2070 Armor / Corsair RM550x / SanDisk 250GB / 1TB WD HDD / Fractal Design Define R4

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Posted · Original PosterOP

All are Kingston with only one module differing in model name. Its 2 KVR24N17S6/4 And one KVR24N17S8/4 

 

It used to work before on the same motherboard i am using now with a less powerful cpu I had.

 

I went from a i3 8100 to a i9 9900.

On the ASUS B360F STRIX

 

The 12gb worked fine on this same mobo with the i3 so why is not working with the i9?

Just 8 working now though on the new cpu.

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Make sure you're using BIOS version 1703 and that the two S6/4 sticks are in the DIMM_A2 and DIMM_B2 slots. The S8/4 stick can be in either A1 or B1.


Intel Core i5-8400 / ASRock Z370 Pro 4 / Hyper 212 Evo / 16GB DDR4 @3000 / MSI RTX 2070 Armor / Corsair RM550x / SanDisk 250GB / 1TB WD HDD / Fractal Design Define R4

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Posted · Original PosterOP

Thanks guys tried all looks like when i was storing the motherboard while waiting for a new CPU it might of bent a pin, so will have to fix that

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3 minutes ago, StatikSA said:

Thanks guys tried all looks like when i was storing the motherboard while waiting for a new CPU it might of bent a pin, so will have to fix that

yeah, my first instinct after reading your post was same as well. Had a ram slot stop working after i bent pins in my cpu socket more than 2 years ago when i was trying to clean the socket, it was really dumb of me.


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