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Phase power, 4+1 vs 8+2? - Page 5

post #41 of 45
The 990XA-GD55 is based on 890FXA-GD65 design and there is a mild failure rate as observed by OCN editor Tator Tot. Not a design for very high overclocks. The ASRock, however, has no problems, and is protected with a shutdown-based VRM protection if I remember correctly.

Ideally if you're going to run a Phenom II x6 or an FX 8-core chip, for the best efficiency and least heat you will want the larger power phase. Make sure to pay attention to overall parts quality though.

I don't consider the M5A99X EVO to be a wise suggestion at all as there is a full 990FX board available for a lower price. Not sure if the same in the UK though.

In the US, while the Extreme4 is priced nicely, the Extreme3 is priced horribly and close to the better 990X chipset boards...
Edited by xd_1771 - 11/2/11 at 3:35pm
post #42 of 45
Quote:
Originally Posted by Skrillex;15542574 
No it won't "burn the board".


Traditionally MSI say they use higher quality power phases thus reducing the need to have more of them.

it's not like i'm saying this out of pure speculation.
Quote:
Originally Posted by jprovido;15542108 
some gets away with it but it's a real possibility that you will burn your motherboard. the guy with the deer as an avatar(lulz) has a thread specifically with vrm issues. if you see the list of those motherboards that burned. 90% are msi boards. high to low end coz of the 4+1 power phase.

you can still overclock with it definitely. I wouldn't worry if you're with a quadcore. just hold off a bit with suicide runs. if you're gonna use a thuban then I won't overclock really far and give the board some breathing room

the post above me is the guy who I'm talking about. read about his thread about power phases. very very good read smile.gif

http://www.overclock.net/amd-cpus/943109-about-vrms-mosfets-motherboard-safety-125w.html?

wonder why almost all of the boards that fried their vrm's were msi boards?
Edited by jprovido - 11/3/11 at 10:21pm
post #43 of 45
the only 4phase Motherboards u can trust are Asus's , MSI is 100% garbage, gigabyte are So so . any other company, ur playing with fire with a 4phase nowadays
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Bertha
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post #44 of 45
*slams head on table*

4+1 Power Phases - CAN Run 125w CPU's safely at stock clocks. Quality Fets MAY run 140w safely also (Stock Clock's) can run the Phenom II x2 (80w) uner a mild OC With - 2 cores enabled or a light oc with 3 cores enabled.

If 80 = 2 then 4 = 160 eek.gif - but if 80 = 2 and 120 = 3 smile.gif

( I know the experienced people will come around and bash the line above.biggrin.gif)

6+2 Phase boards are new this year and since most are heatsinked - I think these will do well as a mid-range enthusiasts Motherboard.

Recomended Mobo's
6+2
ASUS M5A97
ASUS M5A99X
8+2
ASUS Sabertooth 990fx
GIGABYTE GA-990XA-UD3
GIGABYTE GA-990FXA-UD3
GIGABYTE GA-990FXA-UD5

Notice I Didn't put the Crosshair V or the GIGABYTE GA-990FXA-UD7 on the list as it is simply OVERkill (VS the Sabertooth 990FX and GIGABYTE GA-990FXA-UD5)
Edited by theamdman - 11/4/11 at 9:52pm
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post #45 of 45
Oh if you want the best AMD AM3+ mobo. Go with ASRock 990FX Fatal1ty he had 12+2 Phase power and you can reach the maximum overclock or the ASUS Formula V. But if you want budget motherboard go with ASRock Extreme 4 (cheaper than extreme 3 and can use quadfire and trifire).
    
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