overclocking with a gigabyte 945 matx

[233]

got a gigabyte ga945gcm(x)-s2 and its overclocking rather poorly

fitted with matched pair of 667 ram and a 2160 cpu i can only get up to 1.98ghz am i missing something or can i not lock the memory bus on this mobo i try adjusting the memory multiplier but the bios just resets when i reboot,

rm is running on the stock 3.33 multiplier at 220mhz quite happily but wont let me push past this.

anyone make sense of this? basically i want to know how to change the memory multiplier and keep it changed without it resetting back to stock any thoughts guys?

 

[schumi84]

Sounds like the problem i am having, slightly different motherboard though: using the 945 DS3.

There is no option to change the cpu multiplier and the only memory multipliers it likes to run at are stock (2.66) and 3.33.

The most i have got out of it is 270FSB with OCZ Platinum RAM (2x1GB) and even though it boots into windows, the pc fails to restart at any more than about 240FSB.

Tried it in my 965 DS3 (rev2.2) and managed to get up to around the 3GHZ mark with different CPU multipliers (9 and 8). All quite strange considering my 6300 runs at 450FSB x 7.

After doing a bit of research it looks like maybe the 945 chipsets dont like going much above the stock 200MHZ FSB.

 

[Tute]

I think just about ALL of the 945G motherboards came with an unlocked PCIe bus. So when you started overclocking the FSB, the PCIe frequency would rise too. This is what's making the system dreadfully unstable.

I used to have the Conroe 945G-DVI, and it wouldn't boot past about 290FSB for me. It's just a limitation of the board.

If you want to overclock, then go for one of the G33M boards - the P5K-VM or G33M-DS2R. They're both really good overclockers.

 

[V|per]

As above, the 945g boards are renowned for not being good clockers.

The G33's are the best choice for mATX clocking atm.