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LGA775 MB with LGA1156 memory

Last response: in Motherboards
September 16, 2011 7:08:18 PM

I recently purchased a Gigabyte P45T-ES3G LGA775 mb (1333 fsb)which takes 16GB of 240 pin 1.5v DDR3 memory. I also bought 16GB of 240 pin 1.5v DDR3 PC1333 of G.Skill Ripjaws memory.(Both from Newegg) When I looked at the packaging on the memory it says 'Designed for Intel LGA1156 platforms'...'Compatible with Intel LGA1156 Sandy Bridge'.

Does anyone know of compatibility issues between these two items?

Basically, will this memory work with this board?

More about : lga775 lga1156 memory

Best solution

a b } Memory
a c 121 V Motherboard
September 16, 2011 8:06:00 PM

The board should work fine at 1333 MHz of DDR3, since it is rated for it at stock speeds.
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October 4, 2011 5:10:50 PM

Thurso, have you found that the memory is working okay in your system? I ordered the exact same Gigabyte motherboard and G.Skill RipJaws RAM (F3-12800CL9D-8GBRL). I've found that my new system won't start up with anything more than a video card connected; if I add in a soundcard or DVD drive, the power fails within a second or two when I attempt to power the machine on.

I'm going on the assumption that I need to upgrade the power supply (currently 350w, have ordered a 500w) - but I wanted to hopefully rule out that this could have anything to do with unsupported memory. Have you run into any problems since you installed those memory sticks? Did you have to tweak any settings manually?
October 10, 2011 5:28:35 PM

Answering my own question, in case it's of use to anyone. After power upgrade my system seems to be stable with 16GB of the RipJaws memory, so there does not appear to be a compatibility issue with the LGA775 motherboard.
October 20, 2011 3:56:06 AM

Thanks for your responses. Memory works fine. Using a 650 watt PSU. To anyone else using this MB and who is thinking of using the Corsair H80 water cooling system with it, it doesn't fit. The R60 resistor at the top of the CPU gets in the way. The only way around it, is to place the H80 sideways (it's taller than it is wide) and cut some of the casing out.
October 20, 2011 3:56:48 AM

Best answer selected by thurso.