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M3N72-D motherboard issues

post #1 of 2
Thread Starter 
Hi everyone, I have a M3N72-D motherboard, I am new at overclocking, but anyway i seem to not be able to overclock this board, the only overclocking i was able to do is overclock the CPU, 241 x 15 = 3599.75. is that a good overclock for this processor(AMD Phenom II x4 940 Black Edition) but when i go into the bios and try to overclock the voltage for the cpu, nb, ht, and cpu multiplier, i can't post, black screen, also i can't put the memory at 1066, no post on 1066, i have the recommended memory, am2+, a good cpu, fan, just can't overclock this board, if anyone can help me i greatly appreciate it
WorkHorse
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 940 Black Edition M3N72-D NVIDIA GeForce 8800 GTS 512 G. Skill 8GB DDR2 1066 
OSMonitorPowerCase
Vista Home Basic x64 Samsung 24" HDTV tuner Coolmax CUG-950 Cooler Master HAF 932 
Mouse
MX 518 Optical Gaming 
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WorkHorse
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 940 Black Edition M3N72-D NVIDIA GeForce 8800 GTS 512 G. Skill 8GB DDR2 1066 
OSMonitorPowerCase
Vista Home Basic x64 Samsung 24" HDTV tuner Coolmax CUG-950 Cooler Master HAF 932 
Mouse
MX 518 Optical Gaming 
  hide details  
Reply
post #2 of 2
Okay, well two things here. Some GSkill memory at 1066 doesnt overclock well. If you want to overclock with DDR2 the best memory is 800MHz. It is more stable. Also, you should be able to achieve a decent overclock. Part of your issue is instability. You need to decrease your FSB to something lower than 241 as that is a bit too high for a starting point. Also, many AMD processors, including the 940 which I currently own, can overclock quite well, but has many temperaments. For example, you should start low around 208 to 212 for FSB, set your multiplier - this chip handles up to 19x pretty well. I achieved 4 GHz on air cooling with this chip, and 4.7 GHz with phase change stable. You also need to change a few things here. Make sure you have the latest BIOS and you should be fine. Baby steps here as this chip lets you change FSB, but in small amounts and you should always start low when overclocking and not high. You may be able to POST at that speed, but that chip can do lots more. Change the multiplier. As you increase your multiplier, you should increase vcore incrementally in .125V changes if possible. Dont go over 1.55 V vcore on a TEC.
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