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Athlon ii x3 435 Overclock ... noob

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March 19, 2011 1:46:36 AM

Dear Overclockers,
I have a Athlon ii x3 435 @ ~3.2ghz(default 2.9Ghz) for that I just increased the bus Speed to 220mhz, at 14.5 so Everything increased including HT and NB(2200mhz each)... I have a 212+ double fan so temperature isn't an issue for my overclock goal which is 3.3-3.4ghz.
Right now my system has been tested Prime95, Played games never has an issue with instability, however my concern is the ram speed since I am using value memory they are running at 1462mhz, I can just maybe bump the fsb by ~7 and get to 3.3Ghz but my memory speed would also go up to close to 1500MHz, I have tried several combinations by lowering HT/NB multipliers to make it close to 2000 MHz as well as Ram multiplier to make it close to default 1333MHz, but the system does not boot... My questions basically is... Is it safe to just bump the fsb by 7 MHz assuming it will be stable without harming my system components(specifically the RAM)? Thanks in Advance!

My PC:
Gigabyte 880gm-udh2
Athlon ii x3 435@ 3.2ghz
Antec eco 520
His 5770
2gb DDr3 ram Samsung
2gb DDr3 ram Crucial (value) both @ 1462mhz
Case Cooler master 310
hyper 212+
March 19, 2011 2:29:03 AM

You can slow the ram down to get a higher bus speed for the cpu...

You can also try more voltage to the ram and / or looser timings
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March 19, 2011 2:33:37 AM

cronos177 said:
Dear Overclockers,
I have a Athlon ii x3 435 @ ~3.2ghz(default 2.9Ghz) for that I just increased the bus Speed to 220mhz, at 14.5 so Everything increased including HT and NB(2200mhz each)... I have a 212+ double fan so temperature isn't an issue for my overclock goal which is 3.3-3.4ghz.
Right now my system has been tested Prime95, Played games never has an issue with instability, however my concern is the ram speed since I am using value memory they are running at 1462mhz, I can just maybe bump the fsb by ~7 and get to 3.3Ghz but my memory speed would also go up to close to 1500MHz, I have tried several combinations by lowering HT/NB multipliers to make it close to 2000 MHz as well as Ram multiplier to make it close to default 1333MHz, but the system does not boot... My questions basically is... Is it safe to just bump the fsb by 7 MHz assuming it will be stable without harming my system components(specifically the RAM)? Thanks in Advance!

My PC:
Gigabyte 880gm-udh2
Athlon ii x3 435@ 3.2ghz
Antec eco 520
His 5770
2gb DDr3 ram Samsung
2gb DDr3 ram Crucial (value) both @ 1462mhz
Case Cooler master 310
hyper 212+



"Safe" is never guaranteed when overclocking, but it shouldn't be a problem. Just leave your memory on AUTO and the motherboard will adjust the speed and timings for you. I have an X3 running at 3.8 stable for weeks using folding at home.

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March 19, 2011 3:38:55 AM

walleyepro said:
"Safe" is never guaranteed when overclocking, but it shouldn't be a problem. Just leave your memory on AUTO and the motherboard will adjust the speed and timings for you. I have an X3 running at 3.8 stable for weeks using folding at home.


I have everything in AUTO, but are you suggesting to just increase the fsb speed? and motherboard will take care of the ram speed?
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Best solution

a b K Overclocking
March 19, 2011 2:21:01 PM

With mixed memory your MB on auto has to find a happy medium in timings and voltage so both modules will run. Check the memory tab of cpu-z and see what your mb has set timings to currently at 6.66, then manually set those timings for both modules in your bios. When you lower the memory divider to 5.33 auto may be adjusting timings that one stick may not like... If they both are prime stable at 1465, you should be able to use 5.33 divider and bring their freq. back up to 1333 and above as they are now.

lock pcie frequency at 100
set fsb to 250
drop cpu ratio to 12, 250x12=3000MHz
nb freq. to 2000 (if stable raise to 2250 and then 2500 later)
ht freq. to 2000
memory to 1333

If you can get that stable at 100MHz over you should be able to raise the cpu ratio and vcore to get where you want to go. (which should be 250x14.5=3625mhz at around 1.45v, will be cool and snappy ;) )

If your not able to gain any ground just pull one module or thee other and see what auto does with each stick..

g/l
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March 19, 2011 7:40:15 PM

Thanks I really appreciate all your help, I tried several combinations and in one occasion I though I burn my system... so, I just give up, fine @ 3.2ghz, Maybe later I'll get a better Ram and try. For now I'll keep this settings. Thanks for quick response.
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March 19, 2011 7:43:04 PM

Best answer selected by cronos177.
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April 5, 2011 10:37:39 PM

green300 said:
With mixed memory your MB on auto has to find a happy medium in timings and voltage so both modules will run. Check the memory tab of cpu-z and see what your mb has set timings to currently at 6.66, then manually set those timings for both modules in your bios. When you lower the memory divider to 5.33 auto may be adjusting timings that one stick may not like... If they both are prime stable at 1465, you should be able to use 5.33 divider and bring their freq. back up to 1333 and above as they are now.

lock pcie frequency at 100
set fsb to 250
drop cpu ratio to 12, 250x12=3000MHz
nb freq. to 2000 (if stable raise to 2250 and then 2500 later)
ht freq. to 2000
memory to 1333

If you can get that stable at 100MHz over you should be able to raise the cpu ratio and vcore to get where you want to go. (which should be 250x14.5=3625mhz at around 1.45v, will be cool and snappy ;) )

If your not able to gain any ground just pull one module or thee other and see what auto does with each stick..

g/l

Thanks I finally understood what you mean and it WORKED! Stable @3.5 Ghz, I really appreciate your advice. One of the sticks was not happy with the timmings. I have the CPU multiplier at 14, I think I will stay there It is well above What I expected. Thanks man a lot
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