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Athlon X2 240 on stock cooling

post #1 of 7
Thread Starter 
Hello overclockers, this is my first post on this forum !

I have this old PC with the following cfg:

Athlon x2 240 2.8ghz
Mobo Asus M4A78LT-M
4GB DDR3 1333 ( 1x2GB Kingmax, 2x1024 Kingmax )
Enermax PSU

I want to oveclock this PC since its old and will upgrade to a new platform soon, but I have not managed to get it over 3.0Ghz, I am new to oveclocking so I would be happy if you guys could help me with unleashing this beast smile.gif).

I read a lot or articles and played with AMD OverDrive a bit.
I managed to get 3.080 Ghz by changing the reference clock from 200 mhz to 220, and HT Multiplier from x10 to x9. I also set the RAM speed to 667Mhz in BIOS.

This gave me
- 3080 Mhz clocks speed
-1980 HT Link speed
- 733 Mhz Memory Freq

I did not change anything else, like voltages, etc. If I raise it more in crashes and have to reload BIOS default.
I noticed the RAM freq goes up even if I set it to 667 Mhz, is that what keeps me going above this limit ? Is my RAM hitting its limits ? Can I force it to a lowe freq ?

Thank You
post #2 of 7
Try setting the ram lower and the voltage up a tiny bit. My ram is what held my athlon back. I had it on air at 3.4 as a daily user , it ran fine. De lid it and you can probably hit 4. Also make sure cool and quite is off. Let us know how far you get.


Dont forget to watch the temps!!!
newegg
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newegg
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post #3 of 7
Thread Starter 
I will disable cool and quiet. Should I raise the voltage for the cpu or? I have options to raise the voltages for other components too.
post #4 of 7
Only the cpu. Just be careful not to raise it to much. Keep hwmonitor open to watch temps.

Take the ram down another step and leave the timings on auto is how I always got my best results. I know the pros here would say that is bad but it worked for me.
newegg
(14 items)
 
  
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Hard DriveOptical DriveCoolingOS
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HP 2159m Tte Sports Meka Raidmax RX730SS NZXT M59 
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newegg
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Phenom II X6 1055T asrock 970 extreme4 PNY GTX 465/470 Gskill sniper 
Hard DriveOptical DriveCoolingOS
Corsair Nova CSSD-V32GB2, Barracuda 7200 750GB ASUS 24X Burner hyper 212+ windows 7 ult. 64 
MonitorKeyboardPowerCase
HP 2159m Tte Sports Meka Raidmax RX730SS NZXT M59 
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Microsoft sidewinder x5 steelseries 63004SS QcK 
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post #5 of 7
Your ram is almost certainly not the problem. You have already under clocked it, and its running at close to half its rated speed. Its probably fine. To make sure though, run memtest 86 and see if it throws any errors.

The reason it increased in speed is because the ram frequency is tied to the reference clock. You just happened to preemptively slow it down, instead of running into problems, and them lowering it.

To me, this is a fairly straight forward lack of enough vcore. I'd add a bit more, and see if that stabilizes the over clock. You should be able to get about 3.2 - 3.4Ghz out of it easy, with 3.8 - 4 GHz being about as much as your likely going to get out of it.

Welcome to the forum, and good luck with the oc smile.gif.
post #6 of 7
A good fsb for those chips are around the 250 mark. I remember my Athlon II x2 250 could do 4Ghz stable at 1.55v.
Jay
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Jay
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1TB Western Digital 500GB Seagate Barracuda Noctua NH-D15S Windows 8.1 
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post #7 of 7
Thread Starter 
I've decided to get a new aftermarket cooler since the OEM one became loud and I'm also thinking in getting a dual channel 8GB DDR1600.

I have a fairly good case, modded a little by me by adding 2x 12cm silent fans front and back, wire sleeving, etc so I think I'm good in pushing this to at least 3.5 for daily use.

I will get back with results !

Thank you !
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