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my 890fx-gd70 got cooked - Page 4

post #31 of 60
Thread Starter 
Quote:
Originally Posted by Veranor View Post
This motherboard says it supports 6-core, but cannot handle significant overclocks with it. The mosfet simply cannot handle the amount of power the CPU needs.

I tested this theory by overclocking the 1055t to 4.2 GHz. Everything ran okay, Prime95 ran just fine. When I went to Linx, or Intel Burn Test, the capacitors around the mosfet started to whine. About 20-30 seconds later, the motherboard went into protection mode due to overheat and shut everything off. The CPU temps never went over 53c. The NB never went over 40c.

Taking this same test, I turned 2 of the 1055t's cores off. Linx and IBT ran smoothly and there was no whining coming from the mosfet capacitors.

Conclusion:

This board was never meant to handle 6-core CPUs. Get your money back if you can, because any "stable" overclock with the 1090 or the 1055 just means the inevitable is delayed.

I have not tried aftermarket mosfet cooling, but I am stongly considering it. I did not want to buy a new mobo, but will if I have to.
yeah, my board was whining for about 5, 10 minutes before getting roasted. but from the smell, i think it was the nb chipset failed rather than one of the mosfets.
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post #32 of 60
Quote:
Originally Posted by bluepiglet View Post
yeah, my board was whining for about 5, 10 minutes before getting roasted. but from the smell, i think it was the nb chipset failed rather than one of the mosfets.
Yeah but remember. The NB is on the same HS that the mosfets are. I went and made sure the NB isn't under any high stress. So far on my board, it isn't.

I would recommend anyone getting this board to unscrew the HS assembly from the mosfet / NB / SB and verify that those crappy pads are actually ON the chip. If it isn't, then yes its going to fail eventually due to heat.

Keep in mind that those stupid pads are there because they can't make a flat enough surface to cover everything. I verified that too.
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post #33 of 60
Quote:
Originally Posted by Electroneng View Post
I have always had very good luck with MSI boards and prefer them actually.

Through experience though, I always redo the TIM on the northbridge of all boards I purchase. I also like to place a sunion 40mm fan on them as well.

It seems like the board manufacturers slack when it comes to this area. Just look at the Asus Crosshair IV? You have to cut screws and reapply TIM in them!
On some of the Crosshair's yeh. But my NB/SB hasn't even reached 50c yet on load. Looks like I got a lucky cool board
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post #34 of 60
Well... if we are doing something wrong in our OC endeavors to cause these guys to fail like this, someone should tell us.

Otherwise... aftermarket cooling, here I come!
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post #35 of 60
Tried something different. I removed the thermal pads underneath the HS and put thermal paste. I was very careful.

So far, the temps seem to have leveled off somewhat. I will get more concrete information on them later, but I am still actively searching for a good aftermarket heatsink. I believe that will be vital for this mobo.
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post #36 of 60
I just want to say that it seems like every brand on these forums is bad the second they have anything go wrong. Look ASUS messed up bad with the heat sink and I see no one ripping them. I have had 3 MSI boards never had one fail yet but have had 2 asus fail and my last two where really bad overclockers. I had abit motherboards fail right away. I think MSI does have a problem with the 6 cores on these boards but really MSI has got so much better. Go back to the first phenom and back they where horrible everyone on this board would rip you for buying MSI. I believe they have really improved as a company but need to change some thing more I will say. Just my two cents.
post #37 of 60
Quote:
Originally Posted by ~Strawberry~ View Post
On some of the Crosshair's yeh. But my NB/SB hasn't even reached 50c yet on load. Looks like I got a lucky cool board
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post #38 of 60
Thread Starter 
wow, another failed 890fx from msi : http://www.overclock.net/amd-motherb...a890-gd70.html

still happened despite of pre-cautions from me and another forum memeber.

is there any one actually is using the hexcore with the board but didn't end up losing it?
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post #39 of 60
Yes it is true. My fxa890-gd70 was die after ran prime95 in 5 mins. But i didnt see any smell . Now i dont know which mainboard can handle the amd x6. Any good idea?
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post #40 of 60
Gigabyte 890FX UD5
Snow Desk Reborn
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