Hi, I'm a little confused about DRAM frequency and overclocking. According to the overclocking guide, "DDR2-800 can work on systems with a FSB of up to 400 MHz (anything more and you?re lucky)." I plan to overclock an e8400 to 4.00 GHz which would require a 445 FSB. Does this mean that DDR2-800 would not be able to get an e8400 to 4.00 GHz?
overclocking and ram
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VirtualLarry
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- Aug 25, 2001
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Correct, you would need DDR2-900. Since that speed grade doesn't exist, try DDR2-1000 chips. Or, you can try your hand at the "DRAM lottery", and try to find DDR2-800 that will overclock to 900 speeds.
NOT CORRECT!!!
Most DDR-2 ram can easily go over its "rated" 400 mhz fsb first of all,... secondly depending on motherboard settings you might be able to set the ram to different settings, in fact any decent motherboard can do this (and it does not have to be a motherboard over $100 by any means).
I am currently running a 375 fsb and letting my ram overclock to 900 mhz on cheap ddr2-800 rated ram,... I am still playing with the setting on this combo to see what I like,.. I have had this at 400fsb with ram only at 800 mhz,... depending on motherboard settings you can run higher FSB without pushing the ram much,... most likely you can do a 450FSB and have ram at 900 mhz which most DDR-2 800 rated ram will do!
Most DDR2-800 ram will go up to 900 and many to 1000+ if you increase ddr voltage and you might have to loosen timings (by the way I increase voltage but not loosed timings at 900),... and I have run this cheap ram at over 900 without issue.
Some like the "comfort" that comes with being sure,.. but more than likely at this stage with ddr2-800 you will be good to 900 - 1000 range easy. It is up to you if you want to pay a premium, I never do. Just see what you like and then see if other people have had good success with that ram and if so,... you really shouldn't have much worry.
Most DDR-2 ram can easily go over its "rated" 400 mhz fsb first of all,... secondly depending on motherboard settings you might be able to set the ram to different settings, in fact any decent motherboard can do this (and it does not have to be a motherboard over $100 by any means).
I am currently running a 375 fsb and letting my ram overclock to 900 mhz on cheap ddr2-800 rated ram,... I am still playing with the setting on this combo to see what I like,.. I have had this at 400fsb with ram only at 800 mhz,... depending on motherboard settings you can run higher FSB without pushing the ram much,... most likely you can do a 450FSB and have ram at 900 mhz which most DDR-2 800 rated ram will do!
Most DDR2-800 ram will go up to 900 and many to 1000+ if you increase ddr voltage and you might have to loosen timings (by the way I increase voltage but not loosed timings at 900),... and I have run this cheap ram at over 900 without issue.
Some like the "comfort" that comes with being sure,.. but more than likely at this stage with ddr2-800 you will be good to 900 - 1000 range easy. It is up to you if you want to pay a premium, I never do. Just see what you like and then see if other people have had good success with that ram and if so,... you really shouldn't have much worry.
In regards to my previous post,.. I will say this,.. you are doing your homework it sounds like and the better bet would be to get ddr2-1066 to save possible headaches,... I have a personal peeve about spending unnecessary money which should not be relevant when giving advice...
So,.. if you are set on going that high of a FSB then I would say get decent (reasonably priced) ddr2-1066
So,.. if you are set on going that high of a FSB then I would say get decent (reasonably priced) ddr2-1066
I was in the same boat and decided that for my first OC I was going to leave the ram alone and just get a safe 1000 rated pair
Originally posted by: scruffypup
So,.. if you are set on going that high of a FSB then I would say get decent (reasonably priced) ddr2-1066
You are the master of consistency in logic. Way to school virtuallarry there, he's been shamed for sure.
haha!
op- just get 1066 ram & save yourself the headaches later on.
Like this headache for me with ddr2-800:http://www.xtremesystems.org/f...799&stc=1&d=1208481191
op- just get 1066 ram & save yourself the headaches later on.
Like this headache for me with ddr2-800:http://www.xtremesystems.org/f...799&stc=1&d=1208481191
Idontcare--- yes that is what I am here for to school someone!!!,.... as unfortunately many are
I reacted to the first post and it was wrong,...due to the nature of the question posed in my mind,... this is someone who wants to learn to overclock, get good bang for the buck and have a positive experience,..
Now prices arent too bad between ddr2-800 and 1066 so after I thought about it I did put my personal peeves aside and tried to give "advice" to someone who really wants it. My second post was due to realizing this guy wanted advice for a good overclock,.. even though in all honesty 4ghz is not guaranteed no matter how you plan on an e8400 and should be approached as such.
My absolute honest opinion - you can get the same with less money in most situations. Some overclock here to achieve more for the money, some overclock here to achieve more brag for the buck,... a big difference in mentality,.. a small difference in performance,...
I do rail against the latter and I am opposed to those who regurgitate without experience,.. though this is not the only place,.. sports is worse,... there you have regurgitation of regurgitation of regurgitation.
Though to rant a bit though on the regurgitation,.. how many needless posts here and in other forums do you see that don't even address the original question? People want to regurgitate because it makes them feel good,.. it does to me too, but typically only after a case of beer,....and physically,...
Now back to the original topic,... if the OP needs the money like I do since I have 2 wonderful kids that I would rather spend $20-$40 on,... do the DDR2-800. If not,... you will have more "head room" and "comfort of mind" with the ddr2-1066,... though keep in mind a loose setting of ddr2-1066 might be the same as a tight setting of ddr2-800. Remeber these are "ratings" and if we all went by "ratings" then you wouldn't be overclocking in the first place
I reacted to the first post and it was wrong,...due to the nature of the question posed in my mind,... this is someone who wants to learn to overclock, get good bang for the buck and have a positive experience,..
Now prices arent too bad between ddr2-800 and 1066 so after I thought about it I did put my personal peeves aside and tried to give "advice" to someone who really wants it. My second post was due to realizing this guy wanted advice for a good overclock,.. even though in all honesty 4ghz is not guaranteed no matter how you plan on an e8400 and should be approached as such.
My absolute honest opinion - you can get the same with less money in most situations. Some overclock here to achieve more for the money, some overclock here to achieve more brag for the buck,... a big difference in mentality,.. a small difference in performance,...
I do rail against the latter and I am opposed to those who regurgitate without experience,.. though this is not the only place,.. sports is worse,... there you have regurgitation of regurgitation of regurgitation.
Though to rant a bit though on the regurgitation,.. how many needless posts here and in other forums do you see that don't even address the original question? People want to regurgitate because it makes them feel good,.. it does to me too, but typically only after a case of beer,....and physically,...
Now back to the original topic,... if the OP needs the money like I do since I have 2 wonderful kids that I would rather spend $20-$40 on,... do the DDR2-800. If not,... you will have more "head room" and "comfort of mind" with the ddr2-1066,... though keep in mind a loose setting of ddr2-1066 might be the same as a tight setting of ddr2-800. Remeber these are "ratings" and if we all went by "ratings" then you wouldn't be overclocking in the first place
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