B75 pro 3 RAM issue

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   hy, i have an asrock B75 pro 3 motherboard, i use it as home srerver.

I tried install 4 gskill 8Gb DDR3-1600 memory, everything looks good in the service browser i see all the 4 modules, but on the first page i see only DDR3_A2 and DDR3_B2. DDR3_A1 and DDR3_B1 whrite none...

I tried multiply bios, 1.7, 1.9., 2.0 beta but nothing helps to recognise the "missing" two modules.

Is there any bios option that i need to change that the system will see all the 4x8=32GB ram??

Please help...

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
uvbull Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Oct 2025 Status: Offline Points: 15	Post Options Post Reply Quote uvbull Report Post Thanks(0) Quote Reply Topic: B75 pro 3 RAM issue Posted: 23 Oct 2025 at 7:03pm
	hy, i have an asrock B75 pro 3 motherboard, i use it as home srerver. I tried install 4 gskill 8Gb DDR3-1600 memory, everything looks good in the service browser i see all the 4 modules, but on the first page i see only DDR3_A2 and DDR3_B2. DDR3_A1 and DDR3_B1 whrite none... I tried multiply bios, 1.7, 1.9., 2.0 beta but nothing helps to recognise the "missing" two modules. Is there any bios option that i need to change that the system will see all the 4x8=32GB ram?? Please help...

vauntedconste Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 2 hours 28 minutes ago Status: Offline Points: 30	Post Options Post Reply Quote vauntedconste Report Post Thanks(0) Quote Reply Posted: 2 hours 24 minutes ago at 6:09pm
	Thanks for sharing the details of your issue. I know how frustrating it is when RAM works fine one day and then misbehaves the next. Here are a few suggestions you might try: Reset CMOS / BIOS to defaults ??Since you already cleaned the PC, reseated things etc., make sure you?�ve fully cleared CMOS (remove battery, wait a few minutes, set jumper) so all memory settings revert to factory. Sometimes weird memory/channel behaviour is caused by residual settings PolyTrack. Test sticks one by one and in different slots ??Remove all RAM except one stick, test each stick individually in each slot (e.g., A1, A2, B1, B2) to check for slot or stick faults. If one stick or one slot fails repeatedly, you narrow the problem.