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AMD Phenom II X2 555 BE

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March 5, 2010 9:35:24 AM

I've heard great reviews about the 555 cpu and I have seen people unlocking the 2 cores and then overclocking that to 4.2 Ghz. What motherboards are really good at unlocking cores/overclocking for a fair price? ($cheap as possible to $110~)

More about : amd phenom 555

March 5, 2010 11:18:43 AM

All the gigabyte motherboards work great for unlocking cores. You have to set ACC on and enable load hybrid firmware(or something similar).

I have a Phenom II X3 720 and a ga-ma790fxt-ud5p unlocking the cores worked but the system couldn't boot anymore because the core was really defect...

Also Although Cpu temps under load never reached more then 45C and I increased voltage to 1.5V it wasn't stable at anything over 3.54 gigaherz no matter what I tried.

4.2 Gigaherz is very optimistic.

Maybe you will only get 2 cores not reaching more then 3.7 ghz
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March 5, 2010 11:26:22 AM

I've heard a fair bit of success on Asus boards. They even tout the feature on their new 890GX boards
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March 5, 2010 9:20:46 PM

tout = took out?
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March 5, 2010 11:22:52 PM

i sucessfully unlocked my 550 and OCd on my UD4p gigabyte board. id recomend it, great mobo.

i know honda (i think?) from OC.net unlocked and hit 4.2, but that was very lucky. most chips get around 3.4-3.8
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March 5, 2010 11:29:59 PM

I'm not sure if I'm way off but I thought the 890GX boards locked the ability to unlock cores? Or did I miss-read that?

welsh, did you unlock all 4 cores?
What did you oc it to?
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March 5, 2010 11:38:43 PM

its in my sig, i unlocked all 4 and hit 3.6Ghz

i think the 890Gx chipset should still be capable of unlocking, provided the Mobo supports it in the BIOS(which gigabyte boards should).
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March 6, 2010 2:49:37 AM

I'm getting a bunch of mixed reviews. Is the Athlon X2 620 a lot better than the PII X2 555?
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March 6, 2010 3:00:53 AM

no, they are very similar.

the 620 is better in multi-threaded situations, the phenom better for gaming (l3 cache) and single/dual threaded apps.

if you can unlock the 555 then obviously you get the best of both worlds. even without unlocking though, id pick the phenom.
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March 6, 2010 12:42:09 PM

+1 to Welshmousepk

good advice

Phenom 555 ftw
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March 6, 2010 4:18:50 PM

Why is the 550 $125 and is clocked lower while the 555 is $101 and is clocked higher?
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March 6, 2010 7:18:58 PM

tpho2500 said:
Why is the 550 $125 and is clocked lower while the 555 is $101 and is clocked higher?


that, i don't know. as far as im aware, the 555 is the better chip. perhaps its just demand messing with the prices.
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March 6, 2010 10:57:31 PM

Would you say that this is a good cpu for an entry level computer builder?
I've been doing a lot of work on an HP laptop.
My current cpu is: Intel Core 2 Duo T5550 1.83Ghz

I do..
Programming
Gaming (MW2; BFBC2)
Multi task E.G. MS Office + Browser + Music

I've developed a habit to exit programs I don't use in full screen games.

I'm having second thoughts on the 555BE due to it being a dual core and the possibility that I may not be able to unlock the 2 cores and get them to be stable.

What do you think of this setup?

CPU/MOBO: AMD PII X2 555 + ASUS M4A79XTD EVO - $196 AR
CASE: Antec 300 Illusion - $70+$10 SH = $80
HDD: WD Caviar Blue 500GB - $56
PSU/GPU: OCZ ModXStream Pro 600W + XFX 5770 Juniper XT 1GB - $200 AR
RAM: G.SKILL Ripjaws 4GB (2 x 2GB) DDR3 1600 - $105

Monitor: Acer X203H bd Black 20" 16:9 5ms Widescreen - $125

Total AR: $762
My budget was $760
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March 6, 2010 11:19:22 PM

thats a very good build. even a dual core can handle most multitasking (especially simple stuff like office/browser/music)

a more powerful dual core is more beneficial than a less powerful quad right now, because quads aren't that well supported. you can't rely on unlocking, but the sucess rates are high, and if you are successful you will have gotten a bargain.
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March 6, 2010 11:37:03 PM

Actually $89

$99.99 - 20 = 79 + 9.99 SH
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March 7, 2010 12:09:18 AM

I won't be purchasing until next Friday because that is when the check comes in.
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March 13, 2010 11:32:14 PM

Best answer selected by tpho2500.
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