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Gigabyte GA-P55-USB3 RAM detection issue

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Disregard China10252 Posts June 02 2011 01:28 GMT #1 Ive noticed some performance hiccups recently that never occurred before. The issue came up after I rebuilt my PC from bare bones because I swapped out my default HFS from my i5 760 with a Hyper 212+ and also for better cable management. The mobo detects my 2x2GB of RAM but only my 1st slot is actually enabled. I tried swapping each stick to check if one is faulty but they both work and I am also aware of the positioning. Only for the 1st and 3rd DIMM slots for 2 modules, so that isnt the issue. Besides trying all the hardware fixes, Ive also tried resetting to optimized defaults. Still to no avail, the manual does not say that I can enable the other slot since the BIOS will automatically detect the setup itself. *Windows itself also detects the 4GB but states only 2GB is usable. OS: Windows 7 Pro x64 MOBO: Gigabyte GA-P55-USB RAM: GSkill 2x2GB DDR3 1600 edit: BIOS v.F8 Heres a photo of the CMOS status screen.

skyR Canada13817 Posts June 02 2011 01:35 GMT #2 So is the memory detected at POST as 4GB and it's just Windows not detecting it at 4GB? Have you checked msconfig > Boot > Advanced Options?

Disregard China10252 Posts June 02 2011 01:48 GMT #3 At POST it tells me theres 2GB of RAM but if I check the CMOS setup it detects 4GB but only 2GB is enabled. I dont know if theres a way to enable the other DIMM slot or the problem why my bios doesnt automatically detect all my RAM. Windows is also detecting 4GB of total RAM also states only 2GB of that is usable. *I think this is a Mobo/Bios issue, I just added the Windows information for confirmation.

wooblah Australia13 Posts June 02 2011 01:49 GMT #4 http://download.gigabyte.us/FileList/Memory/mb_memory_ga-p55-usb3.pdf check if your RAM is on here, if not it might be fixed with a bios update.

MyNameIsAlex Greece827 Posts June 02 2011 01:53 GMT #5 check if you put the sticks into the correct slots some mobos require them to be in 1 and 3 or 2 and 4... else there are problems like this. check the manual. if its ok go to bios. then check bios for enable/disable for each stick.

Disregard China10252 Posts June 02 2011 01:54 GMT #6 It worked fine since I had this built this months ago, I have not swapped out anything except for the default HFS. The recent bios updates since version F8 dont really improve anything that is beneficial to me.

Disregard China10252 Posts June 02 2011 05:31 GMT #7 Updated with a photo, seemingly cant enable the other slot.

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