400mhz DDR on a KT333?

[jammydodger]

Is it possible to use 400Mhz DDR with a KT333 motherboard while still keeping the FSB of the motherboard at 133Mhz? Or would this be completly pointless?

Why use windows when you can use doors?

 

[CMRvet]

completely pointless.
You should use PC 2700 (333 MHz DDR)

<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>

 

[Rainchill]

CMRvet isn't wrong, but a more clear answer would be: No because DDR400 ram runs at 200 mhz and DDR333 ram runs at 166 Mhz. 400!=333. In order to run DDR400 ram you need DDR400 ram or good DDR333 ram that can overclock well. And a motherboard that has a 1/6 ram divider (which I don't know of any) or wait for the KT400 chipset.

 

[CMRvet]

Thanks for that

However.... the divider is for the PCI and not for the RAM.

And a motherboard that has a <b>1/6 ram</b> divider (which I don't know of any) or wait for the KT400 chipset

<b>(<font color=yellow>as good as it looks</font color=yellow>)</b>

 

[Rainchill]

HAHA.. I am a dumbass! I meant pci divider. Anyway, you can't run 200 at 1/5 becuase probably no Pci card could run at 40 mhz.

 

[lhgpoobaa]

mostly pretty pointless, unless you overclock

on the other hand, using DDR400 @ DDR333 speeds you can be confident it will work with Ultra hard memory timings

Proud owner of the <b>Beige Beast</b> :lol:

 

[Crashman]

LOL, you're so funny! You can run DDR 400 (PC3200) underclocked at DDR333 (PC2700), DDR266 (PC2100), or even DDR200 (PC1600) speed. And if you choose to use the setting for DDR333 at the 266 bus speed (FSB/RAM ratio of 4/5), DDR 400 will allow you to overclock farther past 266 than DDR333 would.

BUT HERE'S WHERE YOU GET REALLY SCREWY! Most PCI cards can handle up to 41MHz bus speeds, only a few get screwy at lower speeds, usually SCSI cards and a few network cards.

<font color=blue>At least half of all problems are caused by an insufficient power supply!</font color=blue>

 

[jammydodger]

Surly there is a way that I could run the RAM at 400Mhz while not changing the FSB speeds (FSB133/RAM200). If I were to use 333Mhz DDR RAM I would still be running asynchronously (FSB133/RAM166) so y cant I do this to a greater extent. Is it because the VIA chipset will not allow me to use 400Mhz ram, if this is the case then y is the ram availiable? Sorry if I am making no sence, I am an absolute begginner but any help u could give me would be very much appreciated.

Why use windows when you can use doors?

 

[Crashman]

I don't think 133/200 is supported by this chipset, no. DDR400 is available for upcomming chipsets and for overclocking. You NEED DDR400 sometimes to reach higher bus speeds. Overclocking is the same reason why PC150 and PC2400 came to the market.

<font color=blue>At least half of all problems are caused by an insufficient power supply!</font color=blue>

 

[jammydodger]

ok, thanx. I dont think I feel confident enough to overclock just yet. I will go for PC2700 from cosair at CL2.0

Why use windows when you can use doors?

 

[Crashman]

Well, you could get the DDR400 now and overclock later, it would be cheaper than buying PC2700 now and upgrading later. But PC2700 should be fine.

<font color=blue>At least half of all problems are caused by an insufficient power supply!</font color=blue>