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First Overclock AMD Athalon II X2 250

post #1 of 13
Thread Starter 
Hi guys I'm trying to figure out how to OC my CPU tried reading up on tutorials, but didn't find myself successful. I'm running a AMD Athalon II X2 250, Gigabyte M57SLI-S4 board, 2 (2GB Corsair Value Select VS2GB800D2 Ram). I went into the bios and changed my CPU Frequency to 230, PCIE Clock to 100. It was stable with a prime 95 stress test, and got to about 42C at 100% load on both cores. Got about 3.5 with those settings, but it would become unstable if I ran a game like SWTOR. Any suggestions as to the settings? And I didn't change any of the voltage because I'm still learning about this stuff. Thanks in advance! redface.gif

-Scott

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post #2 of 13
You probably wont be able to get to at 3.5 Ghz oc without at least a small voltage bump, I would say you probably don't need more than 1.45 v for the cpu at those speeds. When you adjust the the bus speed you also need to change the HT multiplier to keep it as close to 2000 Mhz as you can, same goes for the CPU-NB, unless you want to give it a tiny bit more voltage (+0.075 V or so) and leave it with a 10x multiplier. You also have to change your ram multiplier to keep it at the right speed.
post #3 of 13
Bump up your voltage, if you have good cooling, it wont heat up too much and should run stable. Also if its not stable then, downclock the ram just a bit. That helped my overclock a ton. thumb.gif
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post #4 of 13
Thread Starter 
Quote:
Originally Posted by MrThatGuy View Post

You probably wont be able to get to at 3.5 Ghz oc without at least a small voltage bump, I would say you probably don't need more than 1.45 v for the cpu at those speeds. When you adjust the the bus speed you also need to change the HT multiplier to keep it as close to 2000 Mhz as you can, same goes for the CPU-NB, unless you want to give it a tiny bit more voltage (+0.075 V or so) and leave it with a 10x multiplier. You also have to change your ram multiplier to keep it at the right speed.

Thanks for the response guys, when you say to keep it X10, are you talking about the CPU Clock Ratio?
post #5 of 13
No, I was referring to the CPU-NB ratio (memory controller). Overclocking it gives you a decent boost in addition to overclocking the core.
post #6 of 13
230 is not the CPU frequency,it is the ref. clock.(what they use to call the fsb).When you change the ref. clock you change the CPU,CPU/NB,HTT and RAM speeds.In a locked CPU like the Athlon,you can decrease the CPU and CPU/NB multipler(10x,15x etc.),but you can't increase it,so you have to raise the ref. clock and adjust the multipliers and/or voltages.Raise CPU and your CPU/NB(memory controller or IMC) voltage,lower the HTT and RAM multiplier.
Read here
http://www.overclock.net/t/624908/official-the-amd-socket-am3-knowledge-base-information-thread/0_20
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post #7 of 13
you should get a VRM cooler..you have the holes for one..
looks like 3+1 phase power..be careful..don't clock too high
If i was you..i'd settle in @ 3.4 ghz
 
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post #8 of 13

This being a weak 3-phase setup I second the recommendation of being careful and don't ever leave your VRMs without any cooling (i.e. tower cooler + no heatsinks).  With an Athlon II x2 with the stock 65W TDP you are hardly "pushing it" though.

post #9 of 13
Thread Starter 
Sorry if I seem uneducated on this subject, but I got alot of my parts from my roommate. I'm not sure what there called so I went ahead and took some pictures.

450

450

It's in a HAF case with 3 fans, is this sufficient cooling?

Thanks for all your help guys. redface.gif
post #10 of 13
I've got my wife's Athlon II x2 250 @ 3.86,In order to get this high and stable I upped the vcore.
It's also @ 2750 on the CPU/NB.
Play with the volts(vcore).
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