Memory for Core 2 Duo

[moosey]

I'll be getting a new Core 2 Duo system and I see the FSB on those is 1066.
My question is...to run at that FSB, will I need DDR2 PC2 8500? If not, please let me know and why.

Thanks

 

[Duvie]

1066 is the quad pumped FSB...Actual fsb is 266 stock on E6300,E6400, E6600, and E6700 chips so the DDR ram would run 266x2 or 533ddr2...

To run stock you need nothing more then PC2-4200 memory....

If you plan on ocing you may llo at PC2-5300 667ddr2 stuff or with a bit more headroom PC2-6400 800ddr2 stuff...they would work with 333fsb and 400fsb respectively...

NOw you get an E6300 with a low 7x multi and you will need better then 400fsb if you plan on going after a common 3.2ghz.....7x460ish will require 920ddr2...If you get quality cas 4 PC2-6400 800ddr2 stuff you can most likely get it to work just fine...with a tad more voltage and/or loosened timings....

To be safe you can look at some of the PC2-8000 or 1000ddr2 stuff...


Quad core I believe is going to run at 1333mhz or 333fsb...there the standard will have to be PC2-5300 or 667ddr2 stuff...

 

[cmdrdredd]

Originally posted by: Duvie
1066 is the quad pumped FSB...Actual fsb is 266 stock on E6300,E6400, E6600, and E6700 chips so the DDR ram would run 266x2 or 533ddr2...

To run stock you need nothing more then PC2-4200 memory....

If you plan on ocing you may llo at PC2-5300 667ddr2 stuff or with a bit more headroom PC2-6400 800ddr2 stuff...they would work with 333fsb and 400fsb respectively...

NOw you get an E6300 with a low 7x multi and you will need better then 400fsb if you plan on going after a common 3.2ghz.....7x460ish will require 920ddr2...If you get quality cas 4 PC2-6400 800ddr2 stuff you can most likely get it to work just fine...with a tad more voltage and/or loosened timings....

To be safe you can look at some of the PC2-8000 or 1000ddr2 stuff...


Quad core I believe is going to run at 1333mhz or 333fsb...there the standard will have to be PC2-5300 or 667ddr2 stuff...

This is not all true. The BIOS has a setting that allows your memory to run at DDR2-800 WITHOUT OVERCLOCKING. This is important to note because faster memory always means better performance. The Chipset natively supports DDR2-800

 

[myocardia]

Originally posted by: cmdrdredd
This is not all true. The BIOS has a setting that allows your memory to run at DDR2-800 WITHOUT OVERCLOCKING. This is important to note because faster memory always means better performance. The Chipset natively supports DDR2-800

WTF does this have to do with the OP's question of needing PC8500 to run an E6xxx at stock speed? Everything Duvie said was completely correct, whether or not he included every setting available in every BIOS on every motherboard that supports C2D's or not.

 

[cmdrdredd]

Originally posted by: myocardia

Originally posted by: cmdrdredd
This is not all true. The BIOS has a setting that allows your memory to run at DDR2-800 WITHOUT OVERCLOCKING. This is important to note because faster memory always means better performance. The Chipset natively supports DDR2-800

WTF does this have to do with the OP's question of needing PC8500 to run an E6xxx at stock speed? Everything Duvie said was completely correct, whether or not he included every setting available in every BIOS on every motherboard that supports C2D's or not.

It has everything to do with it. Telling someone they need DDR2-533 to run stock is not always correct. You can buy DDR2-800 and STILL run at a stock/not overclocked speed.

And as I said...faster memory is always better.

 

[myocardia]

Originally posted by: cmdrdredd
It has everything to do with it. Telling someone they need DDR2-533 to run stock is not always correct. You can buy DDR2-800 and STILL run at a stock/not overclocked speed.

And as I said...faster memory is always better.

That's completely incorrect. PC4200 is all that's needed/required to run any C2D. Period. Do some/most motherboards allow you to run the RAM faster in the BIOS? Yes, but the OP never once asked about what settings which BIOS's had, did he? His question was whether PC8500/DDR 1066 RAM was required to run a C2D at stock speed. The answer to that is a resounding no.

 

[Duvie]

Originally posted by: cmdrdredd

Originally posted by: myocardia

Originally posted by: cmdrdredd
This is not all true. The BIOS has a setting that allows your memory to run at DDR2-800 WITHOUT OVERCLOCKING. This is important to note because faster memory always means better performance. The Chipset natively supports DDR2-800

WTF does this have to do with the OP's question of needing PC8500 to run an E6xxx at stock speed? Everything Duvie said was completely correct, whether or not he included every setting available in every BIOS on every motherboard that supports C2D's or not.

It has everything to do with it. Telling someone they need DDR2-533 to run stock is not always correct. You can buy DDR2-800 and STILL run at a stock/not overclocked speed.

And as I said...faster memory is always better.

Yead DUH! I was telling him all he needed to match the fsb was PC2-4200....I didn't say he cannot run faster memory using one of the many dividers....The fact is he was concerned thinking the 1066fsb was the number he had to match the memory to. 1066ddr2 is very expensive and I can see his confusion.

Maybe if you spent time helping others like me instead of following me around and trying to disect advice I give to ppl. Try not to read so much into it, or answer the fvcking questions yourself.

 

[sdsdv10]

Originally posted by: Duvie
Maybe if you spent time helping others like me instead of following me around and trying to disect advice I give to ppl. Try not to read so much into it, or answer the fvcking questions yourself.

Direct and to the point! I likey...

Just wanted to say thanks for the explanation you detailed above. It answered several lingering questions I had regarding C2D OCing and memory.

 

[Yellowbeard]

Originally posted by: moosey
I'll be getting a new Core 2 Duo system and I see the FSB on those is 1066.
My question is...to run at that FSB, will I need DDR2 PC2 8500? If not, please let me know and why.

Thanks

moosey, are you at all interested in OCing? And to clarify by EXACTLY answering your question, we need 1 more piece of info. Are you wanting to run your memory at 1066 also or ONLY the CPU at 1066?? The reason this matters is that (as noted above) the chipsets currently on support up to DDR2-800 natively. So, even though you could leave your CPU at stock AND run the memory at its stock 1066mhz, you would have to OC the chipset to do so.

 

[cmdrdredd]

Originally posted by: Duvie

Originally posted by: cmdrdredd

Originally posted by: myocardia

Originally posted by: cmdrdredd
This is not all true. The BIOS has a setting that allows your memory to run at DDR2-800 WITHOUT OVERCLOCKING. This is important to note because faster memory always means better performance. The Chipset natively supports DDR2-800

WTF does this have to do with the OP's question of needing PC8500 to run an E6xxx at stock speed? Everything Duvie said was completely correct, whether or not he included every setting available in every BIOS on every motherboard that supports C2D's or not.

It has everything to do with it. Telling someone they need DDR2-533 to run stock is not always correct. You can buy DDR2-800 and STILL run at a stock/not overclocked speed.

And as I said...faster memory is always better.

Yead DUH! I was telling him all he needed to match the fsb was PC2-4200....I didn't say he cannot run faster memory using one of the many dividers....The fact is he was concerned thinking the 1066fsb was the number he had to match the memory to. 1066ddr2 is very expensive and I can see his confusion.

Maybe if you spent time helping others like me instead of following me around and trying to disect advice I give to ppl. Try not to read so much into it, or answer the fvcking questions yourself.

Following you around. Get the hell out of here man...

What I said was RIGHT! It is stock to run DDR2-800 memory and people who tell someone to go buy 533 memory because it's "all you need" are basically gimping the performance potential of the system

 

[Markfw]

What I said was RIGHT! It is stock to run DDR2-800 memory and people who tell someone to go buy 533 memory because it's "all you need" are basically gimping the performance potential of the system

If you don;t OC, that DDR2-800 memory will run at 266, so you will just be paying more for the same performance ! Duvie is right. You are off.

 

[stevty2889]

Originally posted by: cmdrdredd

Originally posted by: Duvie

Originally posted by: cmdrdredd

Originally posted by: myocardia

Originally posted by: cmdrdredd
This is not all true. The BIOS has a setting that allows your memory to run at DDR2-800 WITHOUT OVERCLOCKING. This is important to note because faster memory always means better performance. The Chipset natively supports DDR2-800

WTF does this have to do with the OP's question of needing PC8500 to run an E6xxx at stock speed? Everything Duvie said was completely correct, whether or not he included every setting available in every BIOS on every motherboard that supports C2D's or not.

It has everything to do with it. Telling someone they need DDR2-533 to run stock is not always correct. You can buy DDR2-800 and STILL run at a stock/not overclocked speed.

And as I said...faster memory is always better.

Yead DUH! I was telling him all he needed to match the fsb was PC2-4200....I didn't say he cannot run faster memory using one of the many dividers....The fact is he was concerned thinking the 1066fsb was the number he had to match the memory to. 1066ddr2 is very expensive and I can see his confusion.

Maybe if you spent time helping others like me instead of following me around and trying to disect advice I give to ppl. Try not to read so much into it, or answer the fvcking questions yourself.

Following you around. Get the hell out of here man...

What I said was RIGHT! It is stock to run DDR2-800 memory and people who tell someone to go buy 533 memory because it's "all you need" are basically gimping the performance potential of the system

The question asked was ...to run at that FSB, will I need DDR2 PC2 8500?

The answer plain and simple is NO. PC4200 533mhz is all that is required for stock speeds. He didn't ask if he could use higher speed memory, he didn't mention overclocking, he only asked if it was REQUIRED.