Sep 9 2008, 07:58 PM
QUOTE(zer0hour @ Sep 9 2008, 06:55 PM)
Sigh ok looks like time for a technical explanation.
Intel processor speed is a function of two things:
1. Front Side Bus (FSB) speed
2. Clock multiplier.
Intel quoted FSB numbers are quad pumped, thus to derive the actual FSB speed of your processor, you need to divide by 4.
Non Extreme Edition processors have their clock multiplier locked, so overclocking is achieved by increasing the processor FSB.
Now very important: The lowest speed you can run your RAM is 1:1 with the FSB. (I think so, has anyone seen 0.9:1 divider?)
Every processor model is different. For example, your E4600 has FSB800/4 = FSB200. Thus at stock, your RAM is at DDR2-400 (DDR is double pumped), as Goldfries has explained. Thus you have a lot of headroom, as your RAM can reach DDR2-800, or FSB400. Your processor will not reach 12x400.
Now, your question. Performance RAM is used for processors that have higher stock FSBs or lower multipliers. As an example, I'm using a q9300 that is native 333x7.5. Now i know that my chip can reach 3.5Ghz, but to get there I would need 467FSB = DDR2-934. Your RAM would not be able to reach that, thus I need to use DDR2-1066.
Also, performance RAM has tighter timings. Typically ValueRAM has latencies of 5-5-5-18 ot 5-5-5-15. Performance RAM can go to 4-4-4-12 or better.
There are some gem value ram out there Intel processor speed is a function of two things:
1. Front Side Bus (FSB) speed
2. Clock multiplier.
Intel quoted FSB numbers are quad pumped, thus to derive the actual FSB speed of your processor, you need to divide by 4.
Non Extreme Edition processors have their clock multiplier locked, so overclocking is achieved by increasing the processor FSB.
Now very important: The lowest speed you can run your RAM is 1:1 with the FSB. (I think so, has anyone seen 0.9:1 divider?)
Every processor model is different. For example, your E4600 has FSB800/4 = FSB200. Thus at stock, your RAM is at DDR2-400 (DDR is double pumped), as Goldfries has explained. Thus you have a lot of headroom, as your RAM can reach DDR2-800, or FSB400. Your processor will not reach 12x400.
Now, your question. Performance RAM is used for processors that have higher stock FSBs or lower multipliers. As an example, I'm using a q9300 that is native 333x7.5. Now i know that my chip can reach 3.5Ghz, but to get there I would need 467FSB = DDR2-934. Your RAM would not be able to reach that, thus I need to use DDR2-1066.
Also, performance RAM has tighter timings. Typically ValueRAM has latencies of 5-5-5-18 ot 5-5-5-15. Performance RAM can go to 4-4-4-12 or better.
Heard of FPY5 1300mhz?
Heard of Team Value 1100mhz and good latency?
It is a matter of chip and what it bin to do
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anyway, i'll try it... must understand one by one first... hehe... erm, one thing wanna ask... what safe temp for cpu and mobo (system) include on load?? i on my pc 24/7 non stop.... now, at 3.6ghz on load (when in stress test) can reach 65C....
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