Spatcher
06-21-2003, 08:53 AM
Hard as I try I am finding it difficult to understand RAM. Please tell me if I understand something incorectly.
First I dont really know how ram works. I know through the help of Purple Lizzard what each number in the RAM timing mean, I understand that CAS is:
CAS Latency Time controls the time delay (in clock cycles) that pass before the memory module starts to carry out a read command after receiving it
But I don't know how each number corilates with the other number. Why do you have number setings such as 2-2-2-3 and not 2-8-2-3?
-Is there an order in which you lower the timings? Ie:
Active to Precharg Delay, THEN, RAS Precharge, THEN, RAS to CAS Delay, THEN, CAS Latency?
Now, I understand that the lower the timings are the better results you recive but the results also depend on the RAM's fbs (corect me if i am wrong PLS)?
So you have say... OCZ PC3700 GOLD which comes tested at DDR466 at 2-3-3-7 2.75V 200fbs. Now say that your proc is a P4 2.8 800fbs.
**SIDE QUESTION**
The FBS for the RAM and the CPU is 800 b/c the fbs is quad pumped right? So the RAM and the CPU are both dealing with tow DIFFERENT fbs's that are both at 200 quadpumped meaning 200x4 = 800. Please tell me if I am right about this.
*****************
So right now you are runing at 1:1? The CPU fbs and the ram fbs are both at 800. being at 5:4 would mean that your CPU fbs is at say 1000 while your RAM is at 800 right?
But which speeds up your ram the most? raising the fbs or lowering your timings? From the OCZ GOLD review, saying it is the fastest, but not having the lowest times, I infer that fbs is more important then timings. So basicly its better to run at DDR 500 (1000 fbs) w/ higher timings, then at DDR400 (800fbs) w/ lower timings?
Now, where does duel channel DDR come into all of this, what part of the proccess does it effect?
QUESTION - You dont need to worry about overclocking your ram as long as you stay under the warranty's voltage limmit right? So you can go up to but not beyond 2.9v with OCZ PC3700 GOLD and still not have to worry about your ram (cooling included)?
First I dont really know how ram works. I know through the help of Purple Lizzard what each number in the RAM timing mean, I understand that CAS is:
CAS Latency Time controls the time delay (in clock cycles) that pass before the memory module starts to carry out a read command after receiving it
But I don't know how each number corilates with the other number. Why do you have number setings such as 2-2-2-3 and not 2-8-2-3?
-Is there an order in which you lower the timings? Ie:
Active to Precharg Delay, THEN, RAS Precharge, THEN, RAS to CAS Delay, THEN, CAS Latency?
Now, I understand that the lower the timings are the better results you recive but the results also depend on the RAM's fbs (corect me if i am wrong PLS)?
So you have say... OCZ PC3700 GOLD which comes tested at DDR466 at 2-3-3-7 2.75V 200fbs. Now say that your proc is a P4 2.8 800fbs.
**SIDE QUESTION**
The FBS for the RAM and the CPU is 800 b/c the fbs is quad pumped right? So the RAM and the CPU are both dealing with tow DIFFERENT fbs's that are both at 200 quadpumped meaning 200x4 = 800. Please tell me if I am right about this.
*****************
So right now you are runing at 1:1? The CPU fbs and the ram fbs are both at 800. being at 5:4 would mean that your CPU fbs is at say 1000 while your RAM is at 800 right?
But which speeds up your ram the most? raising the fbs or lowering your timings? From the OCZ GOLD review, saying it is the fastest, but not having the lowest times, I infer that fbs is more important then timings. So basicly its better to run at DDR 500 (1000 fbs) w/ higher timings, then at DDR400 (800fbs) w/ lower timings?
Now, where does duel channel DDR come into all of this, what part of the proccess does it effect?
QUESTION - You dont need to worry about overclocking your ram as long as you stay under the warranty's voltage limmit right? So you can go up to but not beyond 2.9v with OCZ PC3700 GOLD and still not have to worry about your ram (cooling included)?