My E6300 OC

BlueAura · 2 Sep 2006 at 10:12

Got my new rig:

Asus P5WDH (1306 bios)
Intel E6300
Asus 7900GTX
Geil DDR2 Ultra 2x 1Gb PC6400

After setting it up to my liking I started to crank up the voltage and FSB. My E6300 is running at 2.8Ghz with 400 Mhz FSB, memory is 1:1 at PC6400 with rubbish timings. Temperature is fine at 54C under load.

My memory is being a pain in the a**, it doesn't seem to like the 4-4-4-12 it should do on 1:1 ratio, is this normal?

420 Mhz FSB is the highest I can get it to boot at, that's with lowered ratio for the memory, VCore 1.5 and north, south bridge, and FSB at highest voltage it can do.

Should I expect more? What could be limiting the overclock?

Socaddict · 2 Sep 2006 at 10:59

that board isn't great for the allendales (the 2MB cache core 2 duos).

To clock them best, you need a 965 chipset board, like the gigabyte DS3/4 or the asus p5b

BlueAura · 2 Sep 2006 at 13:34

That sucks, looks like I might be getting a new motherboard in a few months then. This is the first Intel system I've owned, I thought I'd read all the reviews and made a good choice of board

Any reason for the poor overclock is the 975x chip more unstable at high fsb or just not good with the 2 cores and only 2mb cache?

Sidneylopsides · 2 Sep 2006 at 20:05

I'm running almost exactly the same setup but with an X1900XT.
It's currently at 420FSB perfectly stable, I haven't changed anything other than FSB yet.

BlueAura · 3 Sep 2006 at 00:12

I'm just running some stability tests at 420Mhz FSB now. We'll see how it goes. Might be able to get some more out of it when the chip has settled in a bit.

BlueAura · 3 Sep 2006 at 00:50

420 seems stable for me also with everything at stock voltage except MCH which is at 1.65v.

Highest 1:1 FSB for the Geil Ultra PC6400 to post seems to be around 432Mhz so I cannot blame the RAM, nor the CPU, it is indeed the 975x chip which is limiting the who setup. Volt mod or updated bios?

easyrider · 3 Sep 2006 at 01:17

BlueAura said:
420 seems stable for me also with everything at stock voltage accept MCH which is at 1.65v.

Highest 1:1 FSB for the Geil Ultra PC6400 to post seems to be around 432Mhz so I cannot blame the RAM, nor the CPU, it is indeed the 975x chip which is limiting the who setup. Volt mod or updated bios?

You haven't bought the wrong board you have the wrong CPU for that mobo.
It is common knowledge that the 975 chipset clocks better for the E6600's and above.

Whereas the 965 is better for the E6300 and E6400.