[SOLVED] BIOS and Windows won't load after upgrading RAM

adun4184

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May 30, 2013
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Any help would be greatly appreciated. I tried searching for similar situations but couldn't find anything that worked.

The problem:
I'm replacing my old 8gb RAM with 16gb, but I've run into a problem and I'm not sure I understand why. I see nothing on the screen when I turn it on, not even the BIOS. My PC won't boot after replacing the old sticks with the new sticks.

Relevant parts:
My motherboard can support up to 128gb DDR4 RAM. Link to motherboard specs: https://www.msi.com/Motherboard/X99S-SLI-Krait-Edition/Specification
My old RAM was 2 sticks of 4 gb = 8gb. It also says 2400MHz (PC4 19200) and 16-16-16-39 1.2V Link: https://www.memory4less.com/crucial-gaming-memory-bls4g4d240fsa-m8fadm
My new RAM is 2 sticks of 8gb = 16gb. It also says 3000MHz C16 and PC4-24000 Link: https://www.amazon.com/OLOy-288-Pin-Desktop-Gaming-MD4U083016BJDA/dp/B083NPX9TJ

Things I've tried so far:
I've tried reseating both sticks, and pulling on them to make sure both ends were locked in place. I've tried updating the BIOS, testing one stick at a time, clearing the CMOS, and enabling XMP. I'm only able to access the BIOS while using the old sticks. Are both sticks defective, or am I misunderstanding compatibility between the motherboard and RAM? Is there something I need to manually adjust in BIOS, and if so, can I adjust that using the old RAM without causing damage?

My understanding was that any RAM would work in my motherboard as long as it's DDR4, and that any difference in speed would default to a working value. However, my PC won't boot after replacing the old sticks with the new sticks. Could the difference in speed be the issue?
 

popatim

Titan
Moderator
Your understanding is slightly off. Not all memory works on every board and for this purpose Compatibility charts have been made with verified working memory.

I would start by placing the old ram back in and updating the bios and seeing if the oloy's will work now. MSI's X99 boards had one for memory compatibility if you hadn't updated in a while: https://www.msi.com/Motherboard/support/X99S-SLI-Krait-Edition

MSI's memory compatibility: https://www.msi.com/Motherboard/support/X99S-SLI-Krait-Edition#support-mem-0
Corsairs: https://www.corsair.com/us/en/memoryfinder?type=motherboard
Kingston: https://www.kingston.com/unitedstates/us/memory/search?DeviceType=7&Mfr=MSI&Line=Motherboard&Model=91493
Crucial: https://www.crucial.com/compatible-upgrade-for/msi-(micro-star)/x99s-sli-krait-edition

Oloy doesnt have one.

Your board supports quad channel ram. I'd suggest returning these and purchasing a quad channel kit for that bit of extra memory performance.
 
hi, if you switching RAM, cmos should be always reset
so it doesnt matter what u set with old sticks, mobo may reset it on its own and if it doesnt u have to with cmos reset (shorting jumper - not battery)

refer to your mainboard manuals for CMOS reset (turn off powersupply/unplug cable from wall socket, switch jumper or short clr_cmos pins, hit power button (while PSU is off) few times to clear any remaining power in PSU capacitors, then unshort/switch jumper on clr_cmos pins then power up PC

remember that RAM should be in A2 + B2 slots

mainboard will run mem train program (few preselected memory configurations), this may take some time (even minutes), see if u get any debug leds or bios post codes (if u got display there), if your amainboard has mem ok! button, u can press it aswell so mainboar will switch to another mem preset

if it fails even after several minutes, try only 1 stick in A2 slot
if ram fails to post, then its not compatible even with JEDEC specs

in this case u could put your old sticks back and see if there are bios updates for your mainboard, as it may improve ram compatibility
 

popatim

Titan
Moderator
Your understanding is slightly off. Not all memory works on every board and for this purpose Compatibility charts have been made with verified working memory.

I would start by placing the old ram back in and updating the bios and seeing if the oloy's will work now. MSI's X99 boards had one for memory compatibility if you hadn't updated in a while: https://www.msi.com/Motherboard/support/X99S-SLI-Krait-Edition

MSI's memory compatibility: https://www.msi.com/Motherboard/support/X99S-SLI-Krait-Edition#support-mem-0
Corsairs: https://www.corsair.com/us/en/memoryfinder?type=motherboard
Kingston: https://www.kingston.com/unitedstates/us/memory/search?DeviceType=7&Mfr=MSI&Line=Motherboard&Model=91493
Crucial: https://www.crucial.com/compatible-upgrade-for/msi-(micro-star)/x99s-sli-krait-edition

Oloy doesnt have one.

Your board supports quad channel ram. I'd suggest returning these and purchasing a quad channel kit for that bit of extra memory performance.
 

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