is my ram dual channel
- Thread starter deankenny
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DDR ram is double data rate memory. By following the instructions in the board's manual you enable the dual channel mode by installing the dimms into the correct slots. Even with single sided dimms you would still be running dual channel since those are also the ddr type memory there.
Whats your Motherboard
Since I dont have the manual I would have to say since you have 2 sticks use the yellow slots instead of side by side, is the ram the same make and model
It might run in dual channel, it really likes the ram to be the same, but I have got mixed mached ram to run in D/C, I should say of the same size and speed
The one type of problem that would be seen besides cas latency would be mixing single sided dimms with the usual dual sided memory. The thing to remember is that each identical dimm has to installed on a separate channel to see the dual channel enabled.
The manufacturers always recommend the same size as well as the same type when there are only two dimms used. As far as the manual you simply go to the support site to find it. http://www.dfi.com.tw/Upload/Manual/87730551.pdf
The manufacturers always recommend the same size as well as the same type when there are only two dimms used. As far as the manual you simply go to the support site to find it. http://www.dfi.com.tw/Upload/Manual/87730551.pdf
2 same sized sticks of RAM in the same coloured slots (1/3, 2/4 on your board) will run in dual channel mode. As suggested above you can double check with CPUz or it should also say during the POST that the RAM is running dual channel interleaved (or something similar).
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Generally the older boards with only three or four dimm slots would see the first and third slots used with two dimms to enable the dual channel mode. That pair would be one color on all three when seen on a three dimm slot model and be a different color from the other pair on the four dimm boards. The "A" would be the primary channel with the "B" being the secondary. On many older boards filling all slots would force the single channel mode while the boards out since collectively add memory for each channel separately.
The_Other_One
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I feel pretty darn confident saying if the board has 3 ram slots, then it's not going to be duel channel compatable. And the pairs don't have to go in the 1/3 2/4 slots. That depends on the motherboard If you need proof, check out the Abit AN8 series. As far as 4 sticks, that won't automatically knock you out of duel channel mode, but it will bump your command rate down(1T, 2T, etc...)
Oh Really? Why don't you look over the manual on an Asus A7N8X Deluxe model Socket A board and try repeating that one. http://support.asus.com/download/download.aspx?SLanguage=en-us
Dual channel boards came out some years back along with ddr ram. To enable dual channel model on most with only three dimm slots you install the dimms into dimm slots 1+3 since the third slot would 1gb on the secondary while the board would run 2gb on the primary memory channel. Some of the different Socket A model boards by some makes would see dual channel reduced back to single channel with all three filled. Socket 754 models all were single channel there.
Dual channel boards came out some years back along with ddr ram. To enable dual channel model on most with only three dimm slots you install the dimms into dimm slots 1+3 since the third slot would 1gb on the secondary while the board would run 2gb on the primary memory channel. Some of the different Socket A model boards by some makes would see dual channel reduced back to single channel with all three filled. Socket 754 models all were single channel there.
Not most but all 3 slot dual channel socket A boards would kick out of dual channel if you put a stick in the third slot! Plus a few days ago you thought for some reason the Athlon XP 3200+ was a dual channel CPU and socket A dual channel boards would only run in dual channel with one, WRONG! I can show your post if needed!!
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The_Other_One
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Hehe, what an interesting motherboard. Alrighty, I was wrong. I just did a quick search on Newegg to only find Socket 754 boards with 3 DDR slots 
I dont even know why he brought up socket A boards, deankenny has a 939 DFI board!
Not all would be bumped back into single channel mode if you filled all three dimm slots on the older boards. The higher end Atholon XP model cpus that actually took advantage of the dual channel mode were the XP2800, 3000, and 3200. But that has nothing to do with enabling the dual channel mode. The board's manual for each make and model explains which dimm slots are used in order to do that.
Regardless of Socket type you still have to do what? refer to the board's manual. DDR400 PC3200 memory was also used on Socket A boards as well as a good number 939s.
First, All 3 slot dual channel socket A boards ran in single channel if you used all 3 slots, that is unless you can show me (ONE) socket A board that the northbridge can run in dual channel and single channel at the same time, because thats what it would have to do with 3 sticks!!!
Second, The XP 2800-3000 and 3200 has nothing to do with dual channel, nothing built into the core for dual channel, nothing,zip!!! A few days ago you said it was just the 3200 now you include the 2800 and the 3000 HUM!! Cant keep up with you own answers!!
1) You are the only one suggesting that you run a board in both dual and single channel modes at the same time.
1b) Gee you really should read the manual on an Asus A7N8X Deluxe Socket A board before opening mouth and inserting foot!
2) That's off topic here.
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