K7N2 Delta-ILSR: stable at DDR333, unstable at DDR400

[hooverphonic]

Hi there,

I'm beginning to think it's really the above board which is the culprit.
For the time being, I won't OC anything, for I first have to get this to run stably.
CPU is an older Athlon XP with which I'm using the SDRAM kit from G.Skill, F1-3200PHU2-2GBZX, actually meant to operate stable enough in DDR400 mode. Dual Channel is detected and also displayed at POST.

My Windows (XP & 7) never runs stable if DDR400 is set. Even though BSODs and/or crashes of the DWM (Win7 only) won't happen for hours, 3-6 hours later they WILL happen.

Besides, does my bios ignore FSB settings at times? Had in bog-standard FSB133 (DDR266) and 3:5 FSB:DRAM ratio for a starter. Multiplier = 7x.
CPU-Z only showed a (wrong?) multiplier of 15x, a bus speed of 100 MHz and a rated FSB at 200 MHz, although it should show bus @ 133 and rated FSB @ 266 if I set FSB = 133.

Could increasing tRAS (I got timings at 2-3-2-7) give me back stability in DDR400?
I'm not keen on trial-and-error, I'd like to UNDERSTAND the matter at first.
That aside, I also saw some lists on an OC's board, which had CL set to 3 with the same type of SDRAM.
(Any point in buying a CL2 set if you operate it at CL3 ? )

[Gilly]

FSB need to be run in a divider or 1:1 with bus speed. you cannot run memory @ 400Mhz and FSB @ 333Mhz from what I remember

[hooverphonic]

Hmm, this is strange. I can actually specify lots of ratios here: (FSB:DRAM) 1:1, 1:2, 3:5, 5:6 ... to name a few, so it should not be too much of a problem to figure out the correct one.
BTW I wanted to run SDRAM at 400 and bus @ 133 (FSB -> 266 DDR) - not "333" as you said.

I should also point out that this bios (Phoenix ) does not let you specify dividers of the CPU/n kind.

[Gilly]

Well I will be more specific, you cannot run the memory faster than the bus speed from my experiences with the A7N8X-Deluxe R2.

[wonkanoby]

if you do it will be slower not faster i can asure you

[hooverphonic]

Well I will be more specific, you cannot run the memory faster than the bus speed from my experiences

Memory must not be faster than bus. Ah thanks, that might be the crucial point.

with the A7N8X-Deluxe R2.

Even though my trusty A7N8X-Deluxe is indeed the predecessor of my current mobo (how did you know lol?), I now have a MSI-6570 (K7N2 Delta-ILSR).
Dude, you would confuse me a lot less if you actually responded to things I explicitly mentioned instead of something different every time!

First you told about 333 although I clearly said "266".
Now you were telling about an "Asus A7N8X" although I clearly stated the board type on the thread subject.
Do you just skim over posts too lacklusterly or what is the problem on your side?
(Or maybe doing 5 things at the same time.)

[wonkanoby]

what ever its an nforce 2 and what he said is right

[hooverphonic]

And your point?

If I told him about my Vauxhall problem, then he would tell me about how he successfully managed to solve this on his Chrysler huh? Since those cars are as alike as 2 peas in a pod, yeaaah sure.

[wonkanoby]

whats your problem

take a happy pill