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Overclocking with ASUS M5A78L-M LX-PLUS Motherboard

post #1 of 15
Thread Starter 
Hello, fellow overclockers!

I seem to be stuck when attempting to overclock my AMD FX-4100 on my ASUS M5A78L-M LX-PLUS AM3+ motherboard. As the reviews show, I know it is possible to get a great overclock with the stock cooler on the FX-4100. I am running into a snag though. Whenever I overclock, be it x5 or x1 on the multiplier, the overclock fails and the Motherboards safety feature kicks in reverting the BIOS to the stock clock speeds and voltages. If anyone has any prior knowledge with this motherboard please lend me your brain cells. Thank you in advance!

-JRuxGaming
post #2 of 15
Does the motherboard properly detect your CPU? Its possible that an updated bios is necessary.

Have you tried increasing the voltage and going with a 1x multiplier increase? Its possible that the board isn't giving the cpu sufficient voltage stock.
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post #3 of 15
Quote:
Originally Posted by JRuxGaming View Post

Hello, fellow overclockers!
I seem to be stuck when attempting to overclock my AMD FX-4100 on my ASUS M5A78L-M LX-PLUS AM3+ motherboard. As the reviews show, I know it is possible to get a great overclock with the stock cooler on the FX-4100. I am running into a snag though. Whenever I overclock, be it x5 or x1 on the multiplier, the overclock fails and the Motherboards safety feature kicks in reverting the BIOS to the stock clock speeds and voltages. If anyone has any prior knowledge with this motherboard please lend me your brain cells. Thank you in advance!
-JRuxGaming

I wouldn't overclock an FX 4100 on that board.

Bare 3+1 phase board and is not suited for a power-hungry FX chip.
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post #4 of 15
The M5A78LX-M LX PLUS is effectively no more ready for a 95W TDP load with 4 cores at stock. The experiences of some members which include confirmed reports of throttling with 125W TDP processors (despite a 125W TDP rating - which arguably shouldn't be there, given the 3+1 phase spec is no different from boards ASUS limits at 95W) AND 95W TDP quad cores including the FX-4XXX indicate that taking your clock speed further than stock will ruin your reliability and actually reduce your performance because of the constant activation of VRM throttling. Member dixson01974, in particular, has not had good experiences on this board with added VRM cooling.
post #5 of 15
Thread Starter 
Quote:
Originally Posted by notyettoday View Post

Does the motherboard properly detect your CPU? Its possible that an updated bios is necessary.
Have you tried increasing the voltage and going with a 1x multiplier increase? Its possible that the board isn't giving the cpu sufficient voltage stock.

Yes, it does properly detect it as an FX-4100. By what I have learned here, though, is the processor itself is power hungry. This board, which was released before the FX processors came out. And I trust this info is fully accurate:
Quote:
Originally Posted by xd_1771 View Post

The M5A78LX-M LX PLUS is effectively no more ready for a 95W TDP load with 4 cores at stock. The experiences of some members which include confirmed reports of throttling with 125W TDP processors (despite a 125W TDP rating - which arguably shouldn't be there, given the 3+1 phase spec is no different from boards ASUS limits at 95W) AND 95W TDP quad cores including the FX-4XXX indicate that taking your clock speed further than stock will ruin your reliability and actually reduce your performance because of the constant activation of VRM throttling. Member dixson01974, in particular, has not had good experiences on this board with added VRM cooling.

I will be upgrading this Spring anyways, so no problem there. http://secure.newegg.com/WishList/PublicWishDetail.aspx?WishListNumber=28376248 Along with an 800Watt power supply from Best Buy. http://www.bestbuy.com/site/Cooler+Master+-+Silent+Pro+Gold+800-Watt+ATX/EPS+Power+Supply/2925969.p?skuId=2925969&id=1218364488732
post #6 of 15
Quote:
Originally Posted by xd_1771 View Post

Member dixson01974, in particular, has not had good experiences on this board with added VRM cooling.
Ah crap someone is talking about me again, but yes it is true. That mobo with VRM coolers on it will throttle back at stock speeds under stress loads.
post #7 of 15
Thread Starter 
Quote:
Originally Posted by dixson01974 View Post

Ah crap someone is talking about me again, but yes it is true. That mobo with VRM coolers on it will throttle back at stock speeds under stress loads.

I expected as much. Thank you all for the input.
post #8 of 15
oops..xd has been here biggrin.gif Translation of what he said:Your motherboard is not up to the task and is throttling.
Edited by Schmuckley - 10/11/12 at 8:33pm
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post #9 of 15
I just got my phenom ii x6 1100t to 4.1 ghz stable with this board. And mine isn't throttling back. Constant 4.1 ghz with voltages between 1.48 and 1.56 quite high voltages but my temps are low, like 25 idle and 46 when prime testing. Seems to me like a good enough board (touchwood)

And mines a 125 watt cpu why can't he overclock a 95 watt cpu with this board when i can and have overclocked my 1100t?
Edited by Steelninja - 10/18/12 at 2:21pm
post #10 of 15
Is mine safe at 4.1 ghz if it's stable @ 1.48 -1.56 volts and max temps are 46 ?
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