help! installed new motherboard now i'm missing RAM

Mellon Head said:

Well, if the voltage is wrong, it won't behave right. Can you give is the exact model of each stick of RAM, please?

the geil one it one of 2 the same

Mellon Head said:

Ok. you have mismatched RAM. The voltage on the Geil is 1.5 Volts, and the voltage on the G.Skill is 1.6 Volts. They cannot exist together on the motherboard, meaning that you can't use them at the same time.

To get the G.Skill to work properly, you will have to raise the memory voltage to 1.6 Volts, which would fry your Geil RAM. They are also different speeds. The best you could hope for is to run them at 1333. You also can't overclock that Geil RAM to 1600 like the G.Skill, or raise the voltage to 1.6 V. It has no heat spreaders to dissipate the heat. They'll burn up and malfunction in no time.

I would scrap the whole idea and just buy yourself an 8 GB set of matched RAM. They come in kits of 2 for about $70 to $80 for the good stuff. Or even go 16 GB if you like, for a little more money. It's not worth wasting your time, or damaging your components trying to get this mismatched RAM working.

thanks for that mate.. its not that i dont want to spend any money on ram its more the confusion as to why they worked together before i had a new mobo and cpu ill just get some orded what do you think to this Corsair CMZ16GX3M2A1600C10R Vengeance 16GB (2x8GB) DDR3 1600 Mhz CL10 XMP Performance Desktop Memory Kit Red: Amazon.co.uk: Computers & Accessories

Layback Bear said:

First off a mismatch of ram can always cause problems.
I would suggest suggest downloading the motherboard manual and installing the ram suggested and in the position the manual indicates.

Here is a little starter look. The manual will give more information.

GIGABYTE - Motherboard - Socket AM3+ - GA-78LMT-USB3 (rev. 4.1)

1. 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory (Note 1)
2. Dual channel memory architecture
3. Support for 1600(O.C.)/1333/1066 MHz memory modules

(Please refer "Memory Support List" for more information.)

You could also have a eBay reject product.

i did all of this mate but as i said above i cant understand how or why they worked together before , thanks for you help