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Phase power, 4+1 vs 8+2?

post #1 of 45
Thread Starter 
I've recently gotten £185 for a motherboard/CPU (Already ordered some good RAM) and I'm a little stuck on what to get, my main issue is some boards have 4+1 phase power and others 8+2.
Overclocking is definitely a priority on picking my motherboard (with a H60) and I need full crossfire support (8x/8x) but with overclocking I'm a little confused if a 8+2 will be better over a 4+1 (mostly these two, but I haven't decided yet: MSI 990XA-GD55 and Asrock 970 Extreme4..

Thanks a lot, I appreciate it!
post #2 of 45
ive seen several threads that the 4+1 will acculy catch fire with 125w cpu's
post #3 of 45
4+1 will burn the motherboard when overclocking. that's why I hated the MSI boards. I can't believe they put 4+1 power phase on their high end 890FX board.
post #4 of 45
Thread Starter 
Oh wow seriously? SO v4+1 (like the ASrock 970 extreme3 and others) are definitely a no no for overclocking? That's a shame, they're really well priced boards for the features they offer, I guess that's why they're so cheap though..
post #5 of 45
If i understand it correctly. The more phases you have the less load each phase has on it Which means less heat that is generated on each phase.
thecultofpat
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thecultofpat
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Samsung 840 Evo  Seagate ST31000524AS  Hitachi HDS5C3020BLE630 None 
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CM TPC 812 Windows 7 Ultimate  HP w19e: 1440x900 | Sony KDL40S-5100 1920x1080 CMStorm Quick Fire. 
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post #6 of 45
some gets away with it but it's a real possibility that you will burn your motherboard. the guy with the deer as a 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
post #7 of 45
Quote:
Originally Posted by jprovido;15542061 
4+1 will burn the motherboard when overclocking. that's why I hated the MSI boards. I can't believe they put 4+1 power phase on their high end 890FX board.
Now you got me scared. Someone told me that my MBO is 4.1, i don't know? Whre can i see if it is 4.1, 8.2 ....?
My System
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Phenom x4 955 c3 Asus m5a97 (no Pro,Evo) Gainward GTX 560 Ti Kingston DDR3 1333 
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My System
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Phenom x4 955 c3 Asus m5a97 (no Pro,Evo) Gainward GTX 560 Ti Kingston DDR3 1333 
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2xHitachi; 1xWDC; SATA3 Pioneer DVD-RW Windows7 x64 Samsung 2243sn 
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Seasonic 500-ET blueberry... 
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post #8 of 45
The problem with the MSI boards was that the heatsinks weren't attached properly on some boards and the VRM would overheat and fry.

However, the this issue would typically only show when using x6 CPUs'. Like my MSI 790FX-GD70 has no issues with x4. Even then, when using an x6 CPU, they would only fry when trying to go for extreme overclocks.
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Black Box
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post #9 of 45
^ is that your board in your sig? lemme do a quick google

btw im talking about high overclocks here. like 4ghz+ on amd cpu's. if you're overclocking below that I'd say don't worry about it just give your motherboard a bit of breathing room.
post #10 of 45
Quote:
Originally Posted by jprovido;15542126 
^ is that your board in your sig? lemme do a quick google
Yes, without PRO or EVO in name. Thanks.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom x4 955 c3 Asus m5a97 (no Pro,Evo) Gainward GTX 560 Ti Kingston DDR3 1333 
Hard DriveOptical DriveOSMonitor
2xHitachi; 1xWDC; SATA3 Pioneer DVD-RW Windows7 x64 Samsung 2243sn 
PowerCase
Seasonic 500-ET blueberry... 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom x4 955 c3 Asus m5a97 (no Pro,Evo) Gainward GTX 560 Ti Kingston DDR3 1333 
Hard DriveOptical DriveOSMonitor
2xHitachi; 1xWDC; SATA3 Pioneer DVD-RW Windows7 x64 Samsung 2243sn 
PowerCase
Seasonic 500-ET blueberry... 
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