"could you use the same mobo for the 5400 and the 7750" As long as you get an AM2+/780G board, you *should* be able to run any of the current socket AM2 X2, X3 or X4 CPUs. Updating the BIOS may be required to support the newest CPUs though. http://www.newegg.com/Product/Produ...

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well I've been looking around different UK sites to see if i can buy all the components in one place to save getting hammered with the postage. and so far I've come up with this........ cpu http://www.overclockers.co.uk/showp... mobo http://www.overclockers.co.uk/showp... memory http://www.overclockers.co.uk/showp... cpu cooler http://www.overclockers.co.uk/showp... arctic silver 5 http://www.overclockers.co.uk/showp... please feel free to comment..if iv missed anything or if i can make any small inprovments. i will try to do somemore searching tomorrow to see if i can get the price down

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Sorry, you never said you were from the UK, even so, the links I provided should help you to make some choices. If you're going with the X2 7750, get DDR2-1066 RAM.

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many thanks jam. updated the list to ddr2-1066 ram. i'll need more help when i put this little lot to gether (overclocking wise)

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i found another site with more competitive prices, because i want two use the same site to keep the postage down..which one of these Thermal Grease would you thinks the best. before i order the parts http://www.microdirect.co.uk/Home/S...

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i followed your advice jam and bought the parts and put everything together. at the moment everthings running as default...iv not tweeked anything. so my question is were do i start{overclocking). my old system is still in my sig and im a bit lost with this one. and hears my new rig mobo...ASUS M3A78 PRO 780G Socket AM2+ cpu...AMD Athlon X2 7750 Black Edition 2.7GHz Socket AM2+ 2MB (2x1MB) L3 Cache memory...OCZ 4GB (2x2GB) DDR2 1066MHz/PC2-8500 Gold Memory

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Since you have a Black Edition, there's really nothing to it. Make sure to disable Cool 'n' Quiet, disable any Spread Spectrum settings, then simply raise the CPU mulitplier. It probably wouldn't hurt to throw a little more voltage at the CPU but 3.0GHz (15 x 200MHz) should be no problem at default CPU voltage. I believe default voltage is 1.30v? If you wanna play it safe, just bump it up to 1.35v for starters. If you wanna clock higher than 3.0GHz, raise the multiplier .5x at a time & test for stability by booting into Windows, then running a stress program such as OCCT. http://www.ocbase.com/perestroika_e... If the system becomes unstable at any point, bump up the volatge a little more & try again. Add only as much as is necessary to stabilize. Increase in increments of 0.025v & consider 1.50v to be the safe max. From what I've read, this CPU tends to max out at about 3.5 - 3.6GHz with air cooling. Personally I don't feel comfortable teetering on the edge but it would be nice to know what the max limit is, then back it down a bit as a safety factor.

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everest reports a vcore of 1.38 and cpu-z 1.376. would that change your suggested safe limit. 1 raised the multiplier to 16.5 with out any voltage added...so far. reason being i have " processor voltage" and " processor nb voltage" in the bios and im not sure which one to move??. also i had a look at both. and both voltages only go up to 1.30..very confussed. i notice jam that you haven't mentioned fsb. is't this used on this cpu. one other thing is it impotent to disable Cool 'n' Quiet. becaue i found this very usefull in controling a slightly noisy cpu fan.

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"would that change your suggested safe limit" I'd still consider 1.50v as the safe max. "i have " processor voltage" and " processor nb voltage" in the bios and im not sure which one to move??" Should be obvious. Processor = CPU. Processor NB = NorthBridge chipset. "i had a look at both. and both voltages only go up to 1.30..very confussed" You have to reveal the "hidden" BIOS overclock settings by pressing Ctrl+F1. "i notice jam that you haven't mentioned fsb" That's because AMD CPUs don't use a FSB & haven't used it for many years. The memory controller is built into the CPU, not into the motherboard chipset, so the two communicate at full CPU speed. "one other thing is it impotent to disable Cool 'n' Quiet" If you keep it enabled, it can cause instability due to the constant changing of CPU clock speed & voltage. I'm of the opinion that it should always be disabled when overclocking, but there are guides available on how to overclock with it still enabled.

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"You have to reveal the "hidden" BIOS overclock settings by pressing Ctrl+F1" tryed it don't work :-( well it looks like i could be stuffed for the time reading this article http://vip.asus.com/forum/view.aspx... i had to restart as it became unstable. runs fine at 200x15=3.00ghz.auto vcore @1.38 reported by everest. i then set the vcore to the max 1.30v. left the multiplier at 200. checked the vcore 1.26v (everest) still stable...@45c so ill have to up the multi to see how far i can go @1.26. then when that fails set it back to auto vcore and up it again??

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"You have to reveal the "hidden" BIOS overclock settings by pressing Ctrl+F1" Sorry about that...I looked at the wrong parts list. I thought you had the Gigabyte board from response #8, now I see it's an Asus M3A78 PRO. According to the manual, the CPU voltage has a range of between 0.80v & 1.70v. How are you going about overclocking? Do NOT use the AI Overclocking feature. Change the setting to Manual.

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yes jam doing it all manually. 200x15 is as far as i can go with this dam 1.30 max. with a stable system.everest reports it as 1.26 v/c and 200x15.5 with vcore set to auto. everest reports it as 1.38 v/c

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well because of the vcore limit of 1.30 i exchanged the mobo. my setup now is...... mobo>> Gigabyte GA-MA790GP-DS4H 790GX Socket AM2+ cpu>> AMD Athlon X2 7750 Black Edition 2.7GHz Socket AM2+ 2MB ram>> OCZ 4GB (2x2GB) DDR2 1066MHz/PC2-8500 Gold Memory. as you said jam it was no problem to run it at 200x15 with the default vcore 1.30v. i started of at 200x15.5/ + 0.75vc tested ok. i then raised it to 200x16 and increased the vc by 0.025v increments. this is were i hit a brick wall . i had to go all the way up to 1.50v to get it stable with OCCTPT. so my current results are 200x16/1.50vc = 3.21ghz. i thought it a bit starange why i had to add so much vc to get from 3.11 to 3.21 ghz. is this all i can hope for to get the max from this cpu?? this just seems low compared to other sites i.v seen.

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