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AMD Athlon II x4 645 Overclocking Help - Page 3

post #21 of 26
Thread Starter 
I started another topic earlier today and people said its safe to run at 1.4V on a 3+1 Phase since the CPU is a 95W

http://www.overclock.net/amd-motherb...ange-1-4v.html
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post #22 of 26
Quote:
Originally Posted by leichtwork View Post
I would be very careful of running that high voltage on that board. Like I and someone else mentioned, there is no heatsinks on the board and that will case problems down the road. I would honestly leave it at stock and run with it until a better board could be purchased.

I had the athlon II 640 and I ran it at 3.0 and 3.3 and really did not see that much difference. When the time came I just upgraded and that would be the best bet for your friend. Leave it alone or risk the chance of destroying the board.
I agree with it being a little dangerous to run vcore of 1.5 on that board. But, as we all know, that board supports 125W CPUs. The 645 is a 95W CPU. ASrock doesn't make cheap crap VRMs and mosfets. So, I would have to say a mild overclock w/out heatsinks is definitely doable. I think people overreact to the "no heatsinks on mosfets" stuff. I had a 4+1 powerphase MOBO running 1.57Vcore w/out heatsinks. All lot of variables come into play other than # of powerphases and heatsinked or not.

Quote:
Originally Posted by lukeibob View Post
My Motherboard is a 3+1 Phase so If I bought a Phenom or an Athlon and ran it at 1.4 - 1.5 Volts with Heatsinks on the VRM's would I be safe ?


What about these :


http://cgi.ebay.co.uk/NEW-heatsink-R...#ht_1983wt_905
It you are running a 95W CPU, no heatsinks would be fine as long as you had decent case air flow. If it's a 125W, I would get heatsinks just to be safe. But, worst case scenario is your MOBO will shutoff before any fires start (ASUS).
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post #23 of 26
Thread Starter 
Ok Well I am going to get some Heatsinks for my VRMs
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post #24 of 26
Quote:
Originally Posted by lukeibob View Post
Ok Well I am going to get some Heatsinks for my VRMs
Don't want to sound mean. But, I would just save the money for your future upgrade. Your system is getting pretty outdated. In a couple of weeks, you will be two AMD socket generations behind.
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post #25 of 26
Thread Starter 
Quote:
Originally Posted by charlie310 View Post
Don't want to sound mean. But, I would just save the money for your future upgrade. Your system is getting pretty outdated. In a couple of weeks, you will be two AMD socket generations behind.
Its ok - Ive always wanted a good motherboard for a good price but I want one that supports DDR2 aswell since if I get a DDR3 Motherboard I would need a new CPU some new Ram and that can decrease the weight of your wallet


I will have a look on eBay since I have found some cheap CPUs which are AM3 and I will probably get a new Motherboard and some Ram

I will just have to beg to my parents
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post #26 of 26
Thread Starter 
If i can get 3.4Ghz on an Athlon or a Phenom with my current motherboard I will be happy or 3.6Ghz or something like that
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