ASROCK B550 Phantom Gaming 4 won't boot w/ new ram

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   Hi,

I bought 2x32Gb of ram from corsair and when I install it in my computer, it doesn't boot (RAM and CPU led stay still)

Motherboard: B550 Phantom Gaming 4
Ram already installed : 2?16Gb 2166Mhz (don't remember the brand)
Ram I want to install : 2 ??32Gb 3200Mhz Corsair Vengeance LPX (CMK64GX4M2E3200C16)

I tried to reset the bios, but no luck, I also updated it to the latest version and it didn't work either, I don't know what to do, I bought that ram 2 months ago, so I can't return it either, I also tried to replace the actual ram module, or to add the ram with the actual ram module, and none worked...

I tried the ram on another computer (not mine) and it worked

Any advice ?

Thanks for reading,
Flutter~

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flutterbrony Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 30 Jul 2023 Status: Offline Points: 35	Post Options Post Reply Quote flutterbrony Report Post Thanks(0) Quote Reply Topic: ASROCK B550 Phantom Gaming 4 won't boot w/ new ram Posted: 30 Jul 2023 at 4:17am
	Hi, I bought 2x32Gb of ram from corsair and when I install it in my computer, it doesn't boot (RAM and CPU led stay still) Motherboard: B550 Phantom Gaming 4 Ram already installed : 2?16Gb 2166Mhz (don't remember the brand) Ram I want to install : 2 ??32Gb 3200Mhz Corsair Vengeance LPX (CMK64GX4M2E3200C16) I tried to reset the bios, but no luck, I also updated it to the latest version and it didn't work either, I don't know what to do, I bought that ram 2 months ago, so I can't return it either, I also tried to replace the actual ram module, or to add the ram with the actual ram module, and none worked... I tried the ram on another computer (not mine) and it worked Any advice ? Thanks for reading, Flutter~

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 21203	Post Options Post Reply Quote Xaltar Report Post Thanks(1) Quote Reply Posted: 30 Jul 2023 at 4:07pm
	Make sure the RAM is installed in slots A2 and B2, higher capacity RAM modules can cause issues when installed in slots A1 and B1. Aside from that, try a single module in slot A2 and see if you can get the system to POST. If that still won't work you can try putting one of your 16gb sticks in slot A2 and a 32gb stick in slot B2 and see if the system POSTs and recognizes the 32gb module. If all that fails then contact ASRock Tech Support here: http://event.asrock.com/tsd.asp Good luck


flutterbrony Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 30 Jul 2023 Status: Offline Points: 35	Post Options Post Reply Quote flutterbrony Report Post Thanks(0) Quote Reply Posted: 31 Jul 2023 at 5:38am
	Thanks, I solved it by just doing again what I did until now, I don't know why, it worked, the ram is now detected in the bios, but the bios report it as 1033Mhz, and the system as 2133Mhz -memory description: Mémoire Système identifiant matériel: 10 emplacement: Carte mère taille: 96GiB -bank:0 description: DIMM DDR4 Synchrone Unbuffered (Unregistered) 2133 MHz (0,5 ns) produit: 16GF2X08LIII43-12-K fabriquant: Unknown identifiant matériel: 0 numéro de série: D4000000 emplacement: DIMM 0 taille: 16GiB bits: 64 bits horloge: 2133MHz (0.5ns) -bank:1 description: DIMM DDR4 Synchrone Unbuffered (Unregistered) 2133 MHz (0,5 ns) produit: CMK64GX4M2E3200C16 fabriquant: Unknown identifiant matériel: 1 numéro de série: 00000000 emplacement: DIMM 1 taille: 32GiB bits: 64 bits horloge: 2133MHz (0.5ns) -bank:2 description: DIMM DDR4 Synchrone Unbuffered (Unregistered) 2133 MHz (0,5 ns) produit: 16GF2X08LIII43-12-K fabriquant: Unknown identifiant matériel: 2 numéro de série: D4000000 emplacement: DIMM 0 taille: 16GiB bits: 64 bits horloge: 2133MHz (0.5ns) *-bank:3 description: DIMM DDR4 Synchrone Unbuffered (Unregistered) 2133 MHz (0,5 ns) produit: CMK64GX4M2E3200C16 fabriquant: Unknown identifiant matériel: 3 numéro de série: 00000000 emplacement: DIMM 1 taille: 32GiB bits: 64 bits horloge: 2133MHz (0.5ns) Except the 2133Mhz that should be 3200Mhz, but I think it's because I kept the old ram in A1 and B1, I don't know if it's what blocking the newer ram at 2133Mhz instead of 3200Mhz ? (the old ram is a 2133Mhz stick)

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 21203	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 31 Jul 2023 at 5:13pm
	Yes, if you mix RAM speeds in a system it will use the speed of the slower RAM.