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Fast Ram

most of todays cpus are multiplier locked. that means to oc u need to raise your fsb. doing that you are making the ram run at a higher frequency unless you use a divider. for best performance you want to run your ram at a 1/1 divider (your ram is running at the same speed as your fsb) so u need ram that can run a higher frequency. make sense?
 
rams wtih lower latencies and those that are higher then pc3200. depending on ocing, if the fsb is less hten 200, and you wanna get just 200mhz, then pc3200 is fine.
 
dude, fast ram is better for overclocking if your cpu's fsb is slower than what your ram is. for example using ddr300 on a cpu like um, an athlon 1700+ with a FSB of 266 would make life easier because the ram would be able to go to frequencies after 266 and below 300 and still remain stable. So if you wanted to raise the FSB speed to say like 276, you could and need not concern for the ram...but u got to watch your processor.

now check this example on my current pc,

using 1GB geil pc4200 and a Zalman 7000Cu

i have a IC7Max2 mobo and a p4 2.8 800Mhz Fsb
it is currently overclocked to 3.2 GHz with a FSB of ~ 940MHz
thats 233x4, out of 533Mhz Ram.

comprede?
 
Originally posted by: Confusednewbie1552
So if I CPU's FSB is increased your RAM has to be able to handle it?
Click to expand...

Basically, yes. Normally your RAM runs 'in sync' (at the same speed as) your FSB (Front Side Bus). This means that PC3200/DDR400 RAM would normally be used with a 200MhzFSB (Intel likes to multiply their FSB numbers by 4 for technical reasons that I won't try to get into here, and because it makes them sound faster, so that would be an "800Mhz" FSB for Intel). If you want to overclock your processor, you normally have to increase the FSB speed (unless you have an 'unlocked' processor) -- and so either you have to have RAM that can run at a higher speed, or you have to run the RAM out of sync with the FSB (which hurts performance, but is sometimes still faster than using the slower FSB in the first place).

'Latency' is a more precise measurement of how fast the RAM chips can do certain basic tasks *at their rated speed*. CL2 RAM can start a read or write up in two clock cycles at its rated speed, CL2.5 RAM in 2.5 cycles, and CL3 RAM in 3 cycles. The lower the given numbers are, the better (the first one is the most important; the others impact performance a lot less). The best DDR RAM you can get today is rated CL 2-2-2-5; cheap ram might be something like CL 3-4-4-8 (or higher). You generally cannot get very high-speed RAM that is rated with tight timings, just due to technological limitations.

RAM chips, like all computer components, require electrical power to function. If you don't know what 'voltage' means in terms of a circuit, I don't know how much I could really explain here. VERY simply, increasing the voltage provides more power to the RAM, which helps it run faster, but increases the heat output -- and increasing it too much can be damaging.
 
Yes, fast RAM is better for overclocking.

The main thing is to what extend will you overclock?
Plan it first, find a most bang out of the bucks solution for CPU, RAM & Mobo combination. 🙂

No need for 2 x PC3500 RAM to an overclock system of Duron 1.6 GHz with KT600 Mobo. 🙂
 
Originally posted by: Matthias99
Originally posted by: Confusednewbie1552
So if I CPU's FSB is increased your RAM has to be able to handle it?
Click to expand...

Basically, yes. Normally your RAM runs 'in sync' (at the same speed as) your FSB (Front Side Bus). This means that PC3200/DDR400 RAM would normally be used with a 200MhzFSB (Intel likes to multiply their FSB numbers by 4 for technical reasons that I won't try to get into here, and because it makes them sound faster, so that would be an "800Mhz" FSB for Intel). If you want to overclock your processor, you normally have to increase the FSB speed (unless you have an 'unlocked' processor) -- and so either you have to have RAM that can run at a higher speed, or you have to run the RAM out of sync with the FSB (which hurts performance, but is sometimes still faster than using the slower FSB in the first place).

'Latency' is a more precise measurement of how fast the RAM chips can do certain basic tasks *at their rated speed*. CL2 RAM can start a read or write up in two clock cycles at its rated speed, CL2.5 RAM in 2.5 cycles, and CL3 RAM in 3 cycles. The lower the given numbers are, the better (the first one is the most important; the others impact performance a lot less). The best DDR RAM you can get today is rated CL 2-2-2-5; cheap ram might be something like CL 3-4-4-8 (or higher). You generally cannot get very high-speed RAM that is rated with tight timings, just due to technological limitations.

RAM chips, like all computer components, require electrical power to function. If you don't know what 'voltage' means in terms of a circuit, I don't know how much I could really explain here. VERY simply, increasing the voltage provides more power to the RAM, which helps it run faster, but increases the heat output -- and increasing it too much can be damaging.
Click to expand...


K thanks that helped a lot =)
 
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