Hello.
I have a PC with a Gigabyte GA-P55A-UD3 motherboard, with 8GB of Corsair XMS3 RAM. It's been running in this configuration (windows 7 pro) for several years with no issues.
The other day I decide to add more RAM. Per the MB documentation, the board can take up to 16GB of memory. So I buy two 4GB sticks, all the same specifications as the "original" sticks. Each stick is 4GB (2x2GB), DDR3, same frequency, same voltage, same Corsair part number.
I power off, put the two stick in and start it up. No luck. Once it gets to "Starting Operating System..." it either locks up or reboots. Cleared CMOS and selected fail-safe settings. Still no luck! So, I pull out all the memory but one stick, which should leave me with 4GB (each stick is 4GB). I start it up and it boots. I look at the installed memory under computer properties, it shows 2GB, not 4.
I throw in another stick, which should leave me with 8GB of memory. Windows sees only 4GB.
Is there something I'm not getting??? Shouldn't the system recognize the memory, or do I have to make some sort of adjustment in BIOS?
Thanks!
John
I have a PC with a Gigabyte GA-P55A-UD3 motherboard, with 8GB of Corsair XMS3 RAM. It's been running in this configuration (windows 7 pro) for several years with no issues.
The other day I decide to add more RAM. Per the MB documentation, the board can take up to 16GB of memory. So I buy two 4GB sticks, all the same specifications as the "original" sticks. Each stick is 4GB (2x2GB), DDR3, same frequency, same voltage, same Corsair part number.
I power off, put the two stick in and start it up. No luck. Once it gets to "Starting Operating System..." it either locks up or reboots. Cleared CMOS and selected fail-safe settings. Still no luck! So, I pull out all the memory but one stick, which should leave me with 4GB (each stick is 4GB). I start it up and it boots. I look at the installed memory under computer properties, it shows 2GB, not 4.
I throw in another stick, which should leave me with 8GB of memory. Windows sees only 4GB.
Is there something I'm not getting??? Shouldn't the system recognize the memory, or do I have to make some sort of adjustment in BIOS?
Thanks!
John