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AMD Phenom II x4 955BE C-3 Throtelling - Page 2

post #11 of 15
Quote:
Originally Posted by jsc1973 View Post

You're overloading the VRM's on the motherboard and it's throttling back to keep from blowing them up. The M5A78M-LE is a four-phase (3+1) VRM motherboard that lacks cooling on the MOSFET's and is known to have problems with CPU's rated at even 125W TDP. See here: http://www.overclock.net/t/946407/amd-motherboard-vrm-information-list/0_100
That CPU is rated for 125W at stock; if you're overclocking at all, you're going way above even what ASUS says is OK for your board.

^This is what's happening
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post #12 of 15
Quote:
Originally Posted by mjan23 View Post

no im just running stock settings... nice so what can i do now? can i ask for a replace because this MB does not fully support this chip?

I would. If you are running at stock and the board is throttling, then you have a right to ask for a replacement because ASUS claimed it would support CPU's of a 125W TDP.
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post #13 of 15
If you can get a replacement for it from the seller..I would..or undervolt it some to keep the throttling down..You maybe can undervolt AND OC a little bit..I don't see Asus giving you a better board,though.
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post #14 of 15
Thread Starter 
I just email the store where i bought the MB with the link with the tests you showed me... and asked for a replacement for the model M5A78L-M USB3. Lets see what they are going to do.
post #15 of 15
Quote:
Originally Posted by mjan23 View Post

I just email the store where i bought the MB with the link with the tests you showed me... and asked for a replacement for the model M5A78L-M USB3. Lets see what they are going to do.

My board is the mATX version of yours with lesser RAM slots and it does not support 125W CPUs as you'd think it does. In reality, it's actually rated at 95W. There is no 3+1 phase board on the market that properly supports 125W CPUs..at least not without the VRMs being cooled in some way or the other. I have an active fan over the VRMs of my board @ 4500 RPM and its getting me by. I run my tri core @ either 4.2Ghz @ 1.47v or unlocked as a quad at 3.5Ghz @ 1.37v without any throttling issues..thanks to the cooling. For more information, refer to the link "About VRMs and MOSFETs" in my sig.
Edited by PunkX 1 - 7/17/12 at 9:55pm
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