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Name: Pariah
Hi all. Will I get more performance from overclocking my RAM to DDR450 or reducing the clocks from 3-3-3-8 to 2.5-3-3-6 "like they are now"? Thanks.
P4 3.0HT 800mhz FSB
Asrock P4I65G
2x512mb Kingston Value DDR400 Dual Channel@2.5-3-3-6
80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA GeForce6600 256mb@375/500
SumVision 450W +12/21A
If your CPU isn't overclocked, there's not much point overclocking the RAM. You should run your CPU:DRAM ratio at 1:1 with your RAM timings as tight as possible. In other words, if the RAM is at 225MHz, the CPU should also be at 225MHz.
I doubt your RAM's default timings are 3-3-3-8. DDR400 ValueRAM is usually 3-4-4-8. The 1st number (CAS) is generally the one that dictates better performance. And from what I've read, the last number affects overclockability...if you bump it up a little higher, you *should* be able to push the O/C a little more.
Try something like 2.5-3-3-10 & bump the RAM voltage 0.1v over the default...then see how high you can clock it.
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Thanks Jam, I should have said, I will also be O/C ing the CPU. My defaults are definately 3-3-3-8. So, You think a CPU/RAM O/C is the way to go?
P4 3.0HT 800mhz FSB
Asrock P4I65G
2x512mb Kingston Value DDR400 Dual Channel@2.5-3-3-6
80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA GeForce6600 256mb@375/500
SumVision 450W +12/21A
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http://www.computing.net/cpus/wwwbo...
Did you run into a problem with the earlier attempt and decided to back off and try again later?
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Hi Sabertooth. After that thread, I decided to tighten the latencies of my RAM rather than O/C ing, now, I'm contemplating the other option :-).
Thanks jam, great link.
P4 3.0HT 800mhz FSB
Asrock P4I65G
2x512mb Kingston Value DDR400 Dual Channel@2.5-3-3-6
80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA GeForce6600 256mb@375/500
SumVision 450W +12/21A
0
Be aware though, some value memory modules may not be able to handle the lower latency without loosing data, and even if your Kingston PC3200 memory can, you may be required to run the memory at lower clock (asynchronously MHz wise) than the system bus to maintain the tight timings.
However, when overclocking you want to ensure your RAM isn't limiting the CPU's bandwidth, else the CPU consistently needing to wait for another clock cycle before being filled when processing tasks that require significant bandwidth, as the memory is just not fast enough to keep up at the same pace. I suggest you do not let too tight timings run things out of sync.
Ideally you want 2 or 2.5 CAS Latency for better memory performance even while overclocking, but if you can't sustain it without sacrificing overall system stability, you should loosen it, considering the performance gains of very tight timings aren't that substantial anyway.
http://www.techwarelabs.com/reviews...
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