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Old 12-16-2005, 12:20 AM   #1 (permalink)
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Default RAM Timing?

What is timing when it comes to RAM? I saw on 2x1GB sticks that the timing was 3-4-4-8. What does that mean?

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Old 12-16-2005, 03:37 AM   #2 (permalink)
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Timings show you the latency of the ram... the lower the better.

Tthe lower you can set those timings the more you can increase the Rams Memory Bandwidth (more Bandwidth = Faster). (also note though that there are a lot more Timing options in BIOS that are shown then just those 4 settings)

The lower the Latency also the more stable the ram will be if you Overclock the Ram... because you have more room to Raise the Latency for stability.
example -

my 1GB ram set to 3-4-3-8 (command rate 2T), memtest86+ reports -
Bandwidth about = 13,500mhz

2.5-3-3-6 (command rate 2T)
Bandwidth abotu = 14,500mhz

2.5-3-3-6 (command rate 1T)
bandwidth about = 15,500mhz

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Old 12-16-2005, 06:22 AM   #3 (permalink)
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well like jolancer was saying the lower is better but, with fast memory with low timmings you will need a bit more voltage running to it than regular high timming memory, your average pc3200/ddr400mhz memory with timmings 222-5 would use about 2.7-2.85v. but the memory i am running is geil ultra ddr500/pc4000. timmings 2.5-337/ 2.9-3.2volt, so most likley the higher mhz the memory will be timmed higher. but some memory modules like voltage for example say some memory is 3448 timmings pc3200 2.6-2.7volt you could proubly run 3.2volt to it and crank it to 2336 timmings pc3200, ive seen my memory run at 2336 @256mhz effective 512mhz! with 3.5volt to it, and these results were dont on a p4 3.6 with the ocz dimm booster, so make sure you can always run a little more voltage to you memory.
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