Amd 1200 @ 900

[Yxel]

I have a Amd athlon 1200 mhz 266 fsb. I'm currently running it at 900 mhz due to bad cooling :(

But I'm going to get better cooling.

My question is: When I should set the frequency should I raise the multiplier or the bus speed? The motherboard supports 266 fsb.

Im currently running 9 * 100 = 900 mhz.

Should I have 133 * 9 = 1200 , or 12 * 100 = 1200 mhz.

Thanks.

[Ploaf]

Go for the fsb at 133. You should get better performance that way.

[Sonny]

Welcome to The Forums. The default set up should be 9 X 133/33MHz (266FSB). I hope you got a really nice HSF for that so you don't have to go out & buy another one when you decide to O/C.

[-=UR=- Ranger]

Go with at least 133 FSB, if you got good ram, you could even try out something like 8x150, 8.5 x 141 etc...This would give you a nice performance boost without actually overclocking the core...

[el]

yeah 133 is the way to go! what mobo do you have. I would run it at 6x150 if you have a nice board for overclocking.

[Yxel]

Well.. I can have 132 fsb as maximum...

I have a Msi k7t turbo.

I have 512mb Sdram.

Thanks for the answers.. Now I know :)

Now I only need better cooling...

[Sonny]

Originally posted by Yxel
Well.. I can have 132 fsb as maximum...

132FSB max?! What kinda ram did you buy? Did you set the DRAM CLOCK to HOSTCLK in the BIOS?

[PJ]

theres a jumper at the board......when removed it automatically sets your fsb at 133-minimum and 199 max........check the manual for more info........

[Yxel]

I have set the dram clock to 133 mhz.

Well, the jumper on the mobo is set to 266 fsb, if not it's 200..

So I guess that 132 fsb in bios is best.

Btw, I don't want to overclock, I have such bad cooling.

Amd Athlon 1200 @ 900 ;)
512 mb sdram @ 133 mhz.
Imb 20.4 gb 5400 rpm hd.

[Yxel]

What is HOSTCLK?

[Hugo 59]

Welcome to the forum Yxel.

200 fsb is = to 100, 266 is = to 133 changing the jumper will change to options in your bios from 100-132 to 133-199. 133 is what your chip is made to run at. When you change your jumper your chip should automaticly set the multiplier to 9 giving you 1200 MHz. hostclk and memoryclk just mean the that you can run your memory at the same fsb speed as your board ie. 100(hostclk) or at hostclk +33. The plus 33 means that your memory(dramclk) is running at a faster clock speed which means better memory performance. It appears that you are allready running your memory at hostclk +33.

Since you are already running your memory at 133 fsb this will not effect you if you decide to run at 133 fsb just set your memory to hostclk. Then your fsb and your memory will run at the same bus speed.

[Mr.Lansing]

The more FSB's there is = the higher speed

[Yxel]

Hm. My system hanged when I tried to set the fsb to 111 to get 111 * 9 = 1000 mhz. (Experiment)

It worked first, but hanged when I rebooted my system from windows.

Why? Do anyone have any idee?

[.. AE 86 ..]

very strange
are you sure thatz a 1.2ghz u got there
anyways
Samsung DDR Rams are good... mine is running at 161 fsb

[lennytiger]

are you sure the mobo supports 266FSB

because my mobo didn't and I got a 1.2 266 and it posted at 900MHz

[Hugo 59]

Ok your mobo does support 133 fsb it has the kt133a chipset.

There are a number of reasons why this raise in you fsb could cause you to crash the first thing you want to do is make sure that you have put your memory back to hostclk if not it will be trying to run at a clock speed of 144 (111 + 33), and it probably can't handle that.

The other thing you need to look at are any pci cards you might have. When you raise your fsb this also raises your pci bus if you raise it to far out of spec your system will crash or become very unstable. Most cards can handle the slight raise that you have given it but you might have something in there that doesn't like it.

When you change your jumper to run at 133 fsb(266) it will activate a 1/4 divider for your pci bus putting everything back into spec.

[Yxel]

Hmm no I did not set the ram clock to hostclk. It was still at 133.

"The other thing you need to look at are any pci cards you might have. When you raise your fsb this also raises your pci bus if you raise it to far out of spec your system will crash or become very unstable. Most cards can handle the slight raise that you have given it but you might have something in there that doesn't like it."

To avoid this problem I must raise to 132 directly?

[Hugo 59]

No. To avoid this problem you will need to set it to 133 if you set it to 132 it will be running way out of spec, you need to set the jumper on the motherboard in order to go from the 100MHz – 132MHz range to the 133MHz – 166MHz range. When you change the jumper it will change your divider.

[Sonny]

Try something really simple;

9 x 133/33
HOSTCLK

Make sure you set your jumpers the way the manual says so