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Refresh my noggin on the Q6600 and memory choices please...

post #1 of 4
Thread Starter 
It's been awhile since I had to ponder memory controllers on motherboard chipsets, the Q6600 and memory choices, and now I have an old Q6600 to use with a motherboard with a Q35 express chipset. The Intel Q35 Express chipsets support DDR2 667 and DDR2-800 memory . No overclocking. to be done

Now, the Q6600 has a 1066 MHz FSB , I was thinking that DDR2-667 is good enough, and DDR2-800 will work of course, but is wasted with a CPU of 1066 MHz FSB.

But then I saw this 5 year old post:

"No! Don't get the speed of the RAM mixed up with the FSB speed. The reason is, that there is a memory controller IN BETWEEN the two and so the speed of the RAM is regulated by the memory controller, not the FSB. This is the "chipset" of the motherboard. So what you should really be asking is - which CHIPSET is best for your FSB. The answer for this is - only certain processors will work with certain chipsets for Intel procs. For example, the Q9400 I have in one of my computers only works with the P45 chipset (you have to go to Intel and look up the specs on the processor to make sure). This takes into consideration the memory controller and FSB issues. So, more or less, I am telling you that it is NOT a matter of choice for you. You have no choice, you either run the processor with the chipset it needs or you don't run that processor at all.
The memory speed does not affect the FSB because the memory controller is part of the chipset which is the real regulator or governor of the speed from the memory to the FSB. "



so, is there a benefit on using DDR2-800, at stock speeds, with the Q6600, at stock speeds, over using DDR2-667 in a chipset that accepts both types of ram?.
post #2 of 4
the p35 is a problem chipset. If you are buying memory, I think you will find the 667 and the 800 are basically the same price. If you've got some DDR3 lying around though you might consider an Intel dp45sg motherboard. It's got pcie2 takes DDR3 and overclocks (though not easily) They go for ~$50 refurbished.

It's a very cantankerous board. difficult to update bios on, has undocumented incompatibilities with some video cards (the 7950 comes immediately to mind) and is picky about memory. You need cas 8 or 9 ddr3 1333 for it to overclock reliably. If you've got some spare though it's cheaper than buying memory and you get a machine that's actually fast enough to be usable.

I actually have one I'm getting rid of with 8 gig of compatible memory on it. (guess how I found out about the 7950 incompatibility :/ ) Sell it to you for the price of the memory alone.
New gaming rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
4770k some mid range asrock. extreme 4 maybe? 2x gigabyte windforce 7950 2 x 8 corsair balistix sport 
Hard DriveOptical DriveCoolingOS
crucial ct960 LG blu-ray used venamous x win 8.1 pro 
MonitorKeyboardPowerCase
Crossover 30Q5 PRO 30" 2560X1600  cheapest piece of crud I could find antec HCG 750 some thermaltake microcenter blue-light-special... 
MouseMouse PadAudio
came with the cheapass keyboard who cares? some $30 no name 2+sub speakers I bought at mic... 
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New gaming rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
4770k some mid range asrock. extreme 4 maybe? 2x gigabyte windforce 7950 2 x 8 corsair balistix sport 
Hard DriveOptical DriveCoolingOS
crucial ct960 LG blu-ray used venamous x win 8.1 pro 
MonitorKeyboardPowerCase
Crossover 30Q5 PRO 30" 2560X1600  cheapest piece of crud I could find antec HCG 750 some thermaltake microcenter blue-light-special... 
MouseMouse PadAudio
came with the cheapass keyboard who cares? some $30 no name 2+sub speakers I bought at mic... 
  hide details  
Reply
post #3 of 4
Thread Starter 
actually, I'm updating a business class PC that has a dual core CPU with a Q6600 that I have sitting in the closet. Since the chipset supports the Q6600, I figured why not upgrade with a CPU I already have. I have 667 and 800 ram laying around, hence the question about differences in performance between the 667 and 800 speeds with the Q6600
Just to be used as a HTPC, general use PC, no gaming, no overclocking.
post #4 of 4
might as well go with the 800 then, unless you have use for it elsewhere. There will be a small speed boost. the 800 is more saleable though if you are planning on dunping the spare set so you might want to use the 667 then and sell the 800. You won't get much. There is still a small market for 1066 ddr2, but that's about it.
New gaming rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
4770k some mid range asrock. extreme 4 maybe? 2x gigabyte windforce 7950 2 x 8 corsair balistix sport 
Hard DriveOptical DriveCoolingOS
crucial ct960 LG blu-ray used venamous x win 8.1 pro 
MonitorKeyboardPowerCase
Crossover 30Q5 PRO 30" 2560X1600  cheapest piece of crud I could find antec HCG 750 some thermaltake microcenter blue-light-special... 
MouseMouse PadAudio
came with the cheapass keyboard who cares? some $30 no name 2+sub speakers I bought at mic... 
  hide details  
Reply
New gaming rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
4770k some mid range asrock. extreme 4 maybe? 2x gigabyte windforce 7950 2 x 8 corsair balistix sport 
Hard DriveOptical DriveCoolingOS
crucial ct960 LG blu-ray used venamous x win 8.1 pro 
MonitorKeyboardPowerCase
Crossover 30Q5 PRO 30" 2560X1600  cheapest piece of crud I could find antec HCG 750 some thermaltake microcenter blue-light-special... 
MouseMouse PadAudio
came with the cheapass keyboard who cares? some $30 no name 2+sub speakers I bought at mic... 
  hide details  
Reply
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