Problems overclocking 6300

neocon said:
I don't understand the fsb:dram ratio.

my fsb is 266

freq 333mhz
Timings 4 4 4 12

fsb:dram 4:5? what does this mean?
Click to expand...

Stock fsb of your cpu is 266
For your ram 266 x5/4 =333 (nearly)

So if everything was on auto your cpu would detected as 266x7 =1.86ghz
From the spd of your ram the board would set 4:5 to run it at 333

Now (voltages aside) you want to overclock your cpu to say 3ghz
therefore you need a fsb of 428 ie 428x7=2996
you would probably struggle to get your ram to boot at 428x5/4 =535 (x2 for ddrII = 1070)
So, you manually set cpu/ram divider at 1:1 so it runs at 428 (856 ddrII)

Further info can be found by doing a little research in this forum mate.

Look in the mobo section under ds3 owners thread. ;)
 
Last edited:
Hi folks,

Even though I have an AMD 3800x2 I do use the same Geil RAM as yourself. Just thought you may want to know that my RAM was stable up to 880MHz DDR2 sometimes could get 900 or so but was awkward to get the system to stay stable at anything over 880MHz. Running at 1000MHz plus I think you are pushing your luck!!!

Personally I would up the CPU voltage (looks like you have more or less found the limit of the RAM). FSB speeds can also be another source of instability.

If you get nowhere quick I would go back to basics and follow the oc guide at the top of the forum.

HTH
Jules
 


I did this overclock (7 x 333), booted into winxp and everything was fine. Then I shutdowndown instead of restarting. Now the overclock appears to be stable.

For some reason, the computer would let me apply overclocks, but didn't like it if I restarted afterwards! Am I making any sense?

I'm happy with this 25% overclock for now. Frame rates in CSS seem noticeably quicker.
 
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