OK, I got some PM's from a few.....
As far as I can see, I need to explain something here about OC an AMD64, as it seems there is a totaly wrong angle there.
First of all, and AMD64 DOES NOT have and FSB, it has a reference clock, it's wrongly called FSB in the BIOS.
Second the HT multiplier should allway's below or at 1000MHz, ergo ref-clock x HT multi = MHz
Third, the memory IS connected to the CPU, NOT the chipset, this is very important so I get back on this.
The reference clock is just that, it doesn't control everything.
1:1 CPU/Memory whatever, who came up with this crap? It doesn't exsists, also, there IS NO memory devider.
The CPU won't start if you have the memory timings wrong, period, not a mobo or clock problem, it's a CPU problem, I explain later.
I take the example with PC-3200 memory, if you have faster memory, you might get higher.
Let me give some idea's, just test it, if I'm wrong just correct me.
Default= 200 Refclock = memory 200Mhz (400DDR) = CPUx10 default speed (e.g. 3000+ = 2GHz) -> HTx5=1000 so far nothing wrong.
Next= 250 Refclock = memory 166MHz (will give 250/1.2=416DDR) = CPUx8 2GHz -> HTx4=1000
Next= 300 Refclock = memory 133MHz (will give 300/1.5=400DDR) = CPUx7 2.1GHz -> HTx3=900
So far everybody got it?
Well here comes the explanation:
If you have PC-3200 memory, do NOT OC it just yet, BUT make sure you can run it stable at 1T, that's the fastest setting no matter any other setting like CAS etc...
As for HT, make sure it's allway's below 1000, do not go over it, as the SB can start acting strange, the HT speed is only between CPU and devices, no memory or other involved!
Memory devider? What a joke, it doesn't even exsists....
You have a couple of those "deviders", they are nothing more then:
Ref200 -> Mem200 = 1.0
Ref200 -> Mem166 = 1.2
Ref200 -> Mem133 = 1.5
Ref200 -> Mem100 = 2.0
This is NOT a devider like in K7 and Intel systems, it's just a clock adjustment, as the cache of the CPU =is directly connected at the memory, it only tells the cache the clock-speed to talk to the memory.
The cache is running at CPU speed and talks between the memory and CPU itself.
I saw somebody trying to run the memory at 302 MHz, you need DDR600 memory to get there, the CPU can't do this with DDR500 or DDR400, so it fails to start.
I hope I explained this a bit, if not, just ask, I could have forgotten something
Don't forget, the AMD64 CPU/board design can't be compared to anything else....and OC experiance on non-AMD64 systems won't work.
Logged
---<font color=blue><i><b>There's the facts</font color=blue>....<font color=green> the twisted facts </font color=green>...the distorted facts</font color=blue>,...Then There's</i><font color=red> Journalism!</font color=red></b>
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