I'm having 2 problems with 2 different motherboards and the new memory sticks I got for them.
In both cases the old memory stick was fine, but I wanted to get new, faster ones, and also get two sticks for dual channel memory for each motherboard.
1) DFI LanParty BI G41-T33B:
When I replace the old stick with the new ones the screen would stay black.
No Bipping sound from the motherboards, like it makes when it can't recognize/support a certiain memory stick. everything seems to be fine EXCEPT the screen would stay dark.
I tried placing just one of the sticks or the other but nothing helped and the problem remains:
with the old stick - everything is fine, new stick(s) - screen is black.
2) ASUS P5KPL-AM:
I replaced the old stick with two news. but only 2GB are rcognized. I checked the BIOS(it's not a windows issue, only 2GB are recognized in the BIOS). and in one of the BIOS Setup pages it says something like:"Installed Memory size: 2048 Usable Size: 2048" I'm not sure if it means there's room for 2GB more or that I filled the max capacity... I checked the motherboard model in asus' website and also the CPU-Z report and the capacity should be 4GB as far as I can tell.
DFI LanParty BI G41-T33B
This G41 chipset motherboard is in the category of supporting unbuffered non-ECC DIMMs only. Probably because ECC DIMMs are not supported as they could potentially exceed the current limitation of the memory voltage regulators. http://www.intel.com/support/motherboards/desktop/sb/cs...
Your new ones are listed as being ECC (Error-correcting code) memory.
Crucial Technology CT2CP25672BA1067 4 GB (2 GBx2) Unbuffered ECC DDR3-1066