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Is this Biostar A780L able to handle unlocked AMD Phenom II X2 555? - Page 2

post #11 of 18

A 3-phase VRM is not ready for a 125W TDP quad core Phenom II. These VRM systems were in use back in the Socket AM2 days when the most cores a processor had was two. They were fine perhaps for 89-125W TDP dual core Athlon x2 64s, but underneath TDP, the actual power load of a quad core processor is much more intensive. A quad core Phenom II or higher requires a split power phase for most optimal functioning, and 4+1 phase with ensured VRM cooling for safe and reliable operation.

 

I would simply say no. There's a reason that the majority of 125W TDP Phenom II processors are not on the Cpu support list. Get a new board if you wish to unlock to 4 cores.

 

The ASRock N68 series had reliability problems attempting to run quad core processors, at least a few users reported. It is protected with a VRM OCP function. I'm not sure about this board.

post #12 of 18
Thread Starter 
Quote:
Originally Posted by FlashFir View Post


Have you read my post? It might. I wouldn't unless performance is worth the chance you might be getting a new board in the near future. You have a cheap end of cheap motherboards.



I'm just a noob. frown.gif

Sorry. I forgot to mention it and about the link to the database you gave. I read it when you posted it. I didn't see my motherboard in there but I am half-convinced that it will not work. I even gave an entry though. About the link to the VRMs, I forgot to read it that time. Again, my apologies. I will no longer be pushing it. The processor tends to be hotter over time and my rig's airflow is mediocre. I'm trying to find a way on how to properly let the air get inside. It's a bit in front of the heatsink fan.

I just bought the rig with a price about $250. It didn't have any video card and has a generic PSU when I bought it. So yes, it's really low quality.

About power phasing and such, I'm really getting lost about it. I tried to understand everything but to no avail. frown.gif


Would you kindly select a recommended motherboard which can handle the unlocking and compatible to AM3? These are links to the mobos which I can afford for now.

http://www.asrock.com/mb/overview.asp?Model=N68C-GS%20FX
http://pcx.com.ph/asus-m5a78l-m-lx-760g-vsl-ddr3-1656.html
http://pcx.com.ph/components/motherboards-1/biostar-a880gz-880g-vpcie-s-l-d3.html

And this is the mobo recommended by the guy from the shop where I bought the rig. He said it can handle the unlocked Phenom II x2 555 BE but I cannot find its max TDP. But first, I want to hear out from you.
http://www.gigabyte.com/products/product-page.aspx?pid=3533#ov


Thanks in advance and for your understanding.
post #13 of 18

You need to select a 4+1 phase VRM board and it has to have VRM cooling. The MA-770T-UD3 may do it with VRM cooling but its VRM setup is much weaker with a 3 transistor design, and where this may give you an issue is with extremely high voltages. VRM cooling can be provided through any downward blowing cooler (incl. the stock cooler) or VRM heatsinks.

post #14 of 18
Quote:
Originally Posted by xd_1771 View Post

You need to select a 4+1 phase VRM board and it has to have VRM cooling. The MA-770T-UD3 may do it with VRM cooling but its VRM setup is much weaker with a 3 transistor design, and where this may give you an issue is with extremely high voltages. VRM cooling can be provided through any downward blowing cooler (incl. the stock cooler) or VRM heatsinks.
Well he can unlock it and keep it at stock then save up to buy some VRM cooler for it.
HTPC
(11 items)
 
  
CPUMotherboardRAMHard Drive
AMD A-3870K AsRock A75 Pro (FM1) HyperX DDR3 1866 8 GB SAMSUNG 830 256gb 
Hard DriveOptical DriveCoolingOS
SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
MonitorPowerCase
LG M2762D-PM Glossy Black 27" 5ms (1920x1080) Antec HG 900 Gerenic ATX Case 
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HTPC
(11 items)
 
  
CPUMotherboardRAMHard Drive
AMD A-3870K AsRock A75 Pro (FM1) HyperX DDR3 1866 8 GB SAMSUNG 830 256gb 
Hard DriveOptical DriveCoolingOS
SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
MonitorPowerCase
LG M2762D-PM Glossy Black 27" 5ms (1920x1080) Antec HG 900 Gerenic ATX Case 
  hide details  
Reply
post #15 of 18
All of those boards are kind of okay in my eyes, here in the states the Gigabyte 970a-UD3 wins my recommendation for 90% of the builds I come across. No plans for 2xGPU in the future, needs a quality phase for heavy overclocking on a hex or octa core.

The Gigabyte one recommended in your post will take the x555 pretty far. You don't have to buy something relatively exotic like a UD3 (which is at the beginning end of quality budget boards) if you're just looking to take a x555 unlock + modest overclocking... Just pay attention to xd_1771 wink.gif
post #16 of 18
Thread Starter 
I think it has come down these two mother boards. I didn't see that the other 2 has a max TDP of only 95W.

The Gigabyte GA-MA770T-UD3
http://www.gigabyte.com/products/product-page.aspx?pid=3533#sp

And the BIostar A880GZ 880G
http://pcx.com.ph/components/motherboards-1/biostar-a880gz-880g-vpcie-s-l-d3.html


And I guess I have to shift to DDR3 RAM as well...

Quote:
Originally Posted by FlashFir View Post

All of those boards are kind of okay in my eyes, here in the states the Gigabyte 970a-UD3 wins my recommendation for 90% of the builds I come across. No plans for 2xGPU in the future, needs a quality phase for heavy overclocking on a hex or octa core.

The Gigabyte one recommended in your post will take the x555 pretty far. You don't have to buy something relatively exotic like a UD3 (which is at the beginning end of quality budget boards) if you're just looking to take a x555 unlock + modest overclocking... Just pay attention to xd_1771 wink.gif


As much as possible I want to avoid overclocking it. I only know how to unlock cores. frown.gif
Just an honest and safe unlock to x4 B55 is what I'm hoping for. I live here in the Philippines so it's really difficult to find the recommended products from the internet. But I will try to find the 970-UD3 if it can handle it.

Quote:
Originally Posted by xd_1771 View Post

You need to select a 4+1 phase VRM board and it has to have VRM cooling. The MA-770T-UD3 may do it with VRM cooling but its VRM setup is much weaker with a 3 transistor design, and where this may give you an issue is with extremely high voltages. VRM cooling can be provided through any downward blowing cooler (incl. the stock cooler) or VRM heatsinks.


should I add another fan that blows towards the VRM thingy? It seems like things are getting out of what I can handle. I'm starting to give up on unlocking this...
eh-smiley.gif
post #17 of 18
You won't void your warranty, because, if something goes wrong, just clear the CMOS and you are safe.

A better cooling solution would be a good thing to consider.
post #18 of 18

Another fan works, if you are using a tower cooler. I think you should take this very seriously; the hot ambient temperatures in the Philippines can make things warm and toasty to begin with and this doesn't help for anything in your system. I'm Filipino, so I know that by experience.

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