If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus....

Would this overclock all my components on the front side bus? The reason I ask is because if i was to put a CPU in with a rated 1333mhz bus speed for example my FSB would be set at that speed but it would not be overclocking my ram chipset e.t.c they would be at there stock rated values still.

So i'm assuming as 1333mhz is a native preset for my motherboards bus speed I should be able to run at this bus speed without overclocking everything else on the BUS?

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

You can overclock the FSB without overclocking the RAM, but it will overclock the CPU, like if you put an 800MHz FSB CPU in a 1333MHz mobo the mobo will downclock to 800MHz, so then overclocking this will overclock the CPU, as well.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

On my Asus board, there actually isn't a way to unlink the FSB from the RAM. So any FSB changes have a direct impact on RAM speed

I noticed you have an older Asus board, so it might be something to look out for in the BIOS.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

Everlong18 said:

You can overclock the FSB without overclocking the RAM, but it will overclock the CPU, like if you put an 800MHz FSB CPU in a 1333MHz mobo the mobo will downclock to 800MHz, so then overclocking this will overclock the CPU, as well.

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I have onboard video at the moment & I don't wish to overclock the chipsets either just the CPU.
Just hoping to overclock the CPU by running at 1333mhz native motherboards bus speed while leaving everything else at it's native speed if that makes sense?

Like as if i was running a 1333mhz CPU everything else would still run at native speeds.

The CPU I have has been OC to a 1333mhz bus speed running stable by other people from what ive read via google, but I dont think I can lock the onborad video to OC it up to that FSB.
If I could make it run at 1333mhz like a CPU of that bus speed my onboard video would be running at it's native speed still.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

smarteyeball said:

On my Asus board, there actually isn't a way to unlink the FSB from the RAM. So any FSB changes have a direct impact on RAM speed

I noticed you have an older Asus board, so it might be something to look out for in the BIOS.

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Just got a new motherboard that has a load of OC options and a much higher FSB than my old one so im looking to get a performance boost from my aging CPU. I will replace the CPU at some point but cash is abit low at the min.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

Well if your CPU is capable of being pushed to a 1333MHz FSB, and you have adequate cooling, then it's up to you if you want to try it. Overclocking the FSB won't overclock your onboard video, and like what Smarty said, may or may not overclock your RAM.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

Everlong18 said:

Well if your CPU is capable of being pushed to a 1333MHz FSB, and you have adequate cooling, then it's up to you if you want to try it. Overclocking the FSB won't overclock your onboard video, and like what Smarty said, may or may not overclock your RAM.

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Are you sure about my onboard video not being overclocked aswell? I thought anything on the FSB will be effected when you increase it's speed.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

As far as I know, the onboard video isn't linked to the FSB, it's just controlled by the CPU.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

Yep, onboard will remain untouched.

What board did you get btw?

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

smarteyeball said:

Yep, onboard will remain untouched.

What board did you get btw?

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Asus p5q-em, not the best overclocker at the min tho it should be with all the OC options in the bios. It even allows you to make OC profiles in the bios & save your best configurations. Bios updates have slowly been improving the boards teething problems with the new intel Intel G45 Express chipset. Seems to have problems on all the boards out with this new intel chipset at the min. Just realized i forgot it has a max BUS speed of 1600 MHz. Heres a link to the board with the full specs

ASUS P5Q-EM iG45 Socket 775 onboard VGA 8 channel audio mATX Motherboard - Ebuyerhttp://www.ebuyer.com/product/149280?ref=ga&gclid=CLOJ_tGB3ZkCFQFHFQodDE0uXQ

Won't i need to give some more juice to the chipset if i overclock tho?
Thanks for all the responses by the way people's.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

I don't know how similar the P5Q-EM BIOS is to my P5Q-PRO, but be prepared for being unable to unlink the FSB Strap...

As for juice, depending on your goal, you'll probably just need to up the CPU Voltage/Vcore.

When I was running 800mhz RAM @ 849mhz (the link in action), I didn't have to adjust the RAM voltage at all.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

smarteyeball said:

I don't know how similar the P5Q-EM BIOS is to my P5Q-PRO, but be prepared for being unable to unlink the FSB Strap...

As for juice, depending on your goal, you'll probably just need to up the CPU Voltage/Vcore.

When I was running 800mhz RAM @ 849mhz (the link in action), I didn't have to adjust the RAM voltage at all.

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Is the FSB link strap like the divider? do you mean i can't change the divider at all like from 1.1 to some other ratio?

Hows the overclocking on the pro version going for you, had any problems with the motherboard?

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

You can get it to 1 to 1 or other ratio's but it's dependant on what you set the FSB and FSB strap to. ie You don't get much choice

The board overclocks very well but I have had a niggly stability issue since day one. However it's hard to say whether it's the board itself, a faulty CPU or a BIOS setting that is just a little off (user error). If I were to put money on it, I'd say it's the latter as there are some options I haven't tried yet. (there are a lot of options )

Personaly if I were to get another asus ddr2 board, it would be the deluxe simply because it has better stock NB cooling and allows more control over the GTL settings.

Re: If i set my motherboard to it's native 1333mhz with a CPU that has an 800mhz bus.

smarteyeball said:

You can get it to 1 to 1 or other ratio's but it's dependant on what you set the FSB and FSB strap to. ie You don't get much choice

The board overclocks very well but I have had a niggly stability issue since day one. However it's hard to say whether it's the board itself, a faulty CPU or a BIOS setting that is just a little off (user error). If I were to put money on it, I'd say it's the latter as there are some options I haven't tried yet. (there are a lot of options )

Personaly if I were to get another asus ddr2 board, it would be the deluxe simply because it has better stock NB cooling and allows more control over the GTL settings.

Click to expand...

Thanks for the responses everyone, my case only allows for uatx boards the PQ5-EM fit the bill in my price range & had a slight edge over gigabyte alternative with the G45 Express chipset, the PCI express 2 X16 BUS was shared on the gigabyte board even when using a graphics card. I was after the older version of the board by asus, can't remember the name now but it was out of stock everywhere now & end of line. Came across this the PQ5 instead, it's very feature packed for a uatx board. I think the strap problems are because of the intel chipset according to asus they are anyway? Still for an uatx it's pretty sweet spec wise.