Re: PC2-6400 RAM is 400Mhz or 800Mhz?



On 26 Jan, 15:54, "Nick Le Lievre"
<nicklelie...@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
"bornfree" <justyouan...@xxxxxxxxxx> wrote in message

news:95aaca87-c753-44bb-b0e2-07f84e3c23d8@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

My bus speed is 400Mhz.
RAM 400Mhz

So FSB:DRAM 1:1

On the SPD tab of CPU-Z I notice that the latency figures seem to be
lower if the RAM frequency is 200Mhz.

Does this mean that by overclocking my RAM I have increased the
latency and made my system less responsive?

If your bus speed is 400mhz then your RAM will be running at 800mhz with the
default memory multiplier, forget what SPD says... my SPD says that my ram
is 333mhz but I know for a fact it is rated for 667mhz and I actually run it
at 750mhz (I know the memory multiplier is 2.0). It actually says the RAM is
running at 750mhz at POST, if you have a Gigabyte P35 board it should your
speed also. You need to find out what timings your RAM is capable of and
specifically set those in the BIOS, it could be CL5 @ 800mhz therefore
5-5-5-15 or it could be CL 4-4-4-12. I wouldn't worry too much about latency
it doesn't make *that* much difference.


"You need to find out what timings your RAM is capable of"

How do I find that out?
.



Relevant Pages

  • Re: Advice on which Graphics Card.
    ... The the clock latency refers to how quickly the signal changes from a 1 to a 0 or vice versa - so a lower clock latency means your RAM is ever-so-slightly more responsive. ... At stock, a lower CL is minutely better; when you overclock RAM, you often have to relax the timings for stability, so you may have CL4 RAM running at CL5. ... If the OP has decent aftermarket CPU cooling, he should be able to clock the E6400 to a little beyond the E6600 stock speeds without noticeably cooking his components. ...
    (comp.sys.ibm.pc.games.action)
  • Re: Extra RAM Installation Blues Vol 2
    ... >> Wot's SPD? ... > It's used by the BIOS to Read off the various things from the RAM, ... > to Set the RAM Timings etc, or you can Set it to not use SPD ... so there isn't normally any prob. ...
    (uk.people.silversurfers)
  • Re: Figuring out my RAM settings/timings
    ... Can someone help me figure out the ram timings I need to ... me to single channel mode which is giving me almost a 50 pct drop ... Command Rate 1T means one address is presented per clock cycle. ...
    (alt.comp.periphs.mainboard.asus)
  • Re: Same specs, different prices: DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit
    ... I see three RAM-stick pairs, all from the same manufacturer, that seem to have the same timing specs. ... But they differ in model number, price and voltage specs, the more expensive ones having the higher voltage specs. ... But charging more for RAM rated at HIGHER voltage does not make sense. ... RAM that can achieve certain timings at 2.0 volts is better quality than RAM that achieves the same timings at 2.3V. ...
    (alt.comp.hardware.pc-homebuilt)
  • Re: 3200+ auto reads 1900+
    ... CPU Multiple Setting = Menu ... clock 2.5 RAM I can set this as aggressive. ... timings as below for performance. ... Unless you know what you are doing, leave this setting as "by SPD") ...
    (microsoft.public.windowsxp.hardware)

Loading