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Old 10-14-2010, 03:40 PM   #1
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Default Ram Compatibility and Mobo/CPU Questions

I'm thinking about buying this CPU
AMD Phenom II X2 555 Black Edition Callisto 3.2GHz 2 x 512KB L2 Cache 6MB L3 Cache Socket AM3 80W Dual-Core Desktop Processor - C3 Revision HDZ555WFGMBOX
*link*
And this Mobo
MSI 890FXA-GD70 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD
*link*
And this RAM
OCZ Flex EX 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)
*link*

My first concern is the RAM, will it be compatible with my Mobo/CPU? I've heard that 2133 RAM is only compatible with the i7 CPU's and that it's not compatible with AMD?

Secondly, I would appreciate any assistance, guidance, or links as to help explain how to unlock this particular CPU into a Quad.
Thank you for taking the time to read and reply : o)
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Old 10-14-2010, 04:34 PM   #2
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Default Re: Ram Compatibility and Mobo/CPU Questions

Quote:
Originally Posted by Footfalls View Post
I'm thinking about buying this CPU
AMD Phenom II X2 555 Black Edition Callisto 3.2GHz 2 x 512KB L2 Cache 6MB L3 Cache Socket AM3 80W Dual-Core Desktop Processor - C3 Revision HDZ555WFGMBOX
*link*
And this Mobo
MSI 890FXA-GD70 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD
*link*
And this RAM
OCZ Flex EX 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)
*link*
2133 MHz RAM and a PII 550?! you should probably get your priorities straight here. Get 1600 MHz RAM and use the money you saved to buy a quad core CPU.

Quote:
Originally Posted by Footfalls View Post
My first concern is the RAM, will it be compatible with my Mobo/CPU? I've heard that 2133 RAM is only compatible with the i7 CPU's and that it's not compatible with AMD?
It's compatible with the processor, but probably not the motherboard.

Quote:
Originally Posted by Footfalls View Post
Secondly, I would appreciate any assistance, guidance, or links as to help explain how to unlock this particular CPU into a Quad.
Enable ACC in the BIOS. It will probably be unstable though. The cores are often locked for a good reason. If you buy the 550, expect a dual core CPU. You may be able to get more, but there is absolutely no guarantee, and with the cost of the 955, it really isn't worth it.
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Old 10-14-2010, 04:48 PM   #3
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Default Re: Ram Compatibility and Mobo/CPU Questions

Don't need to say anything else here apart from the fact that Foothead is right on the button. 2133 MHz RAM? No, blatantly un-necessary. And you don't need to think about unlocking dud cores cause you'll go for the 955/965 CPU instead.
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Old 10-14-2010, 05:30 PM   #4
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Default Re: Ram Compatibility and Mobo/CPU Questions

Alrighty!
I just spent quiet a bit of time redefining my list.
Thank you two for helping me out! I really appreciate your advice : o)

Here's my full lay out now, please offer more advice
SeaSonic X650 Gold 650W ATX12V V2.3/EPS 12V V2.91 PSU
AMD Phenom II X4 955 CPU
ASUS M4A87TD EVO AM3 AMD 870 SATA 6Gb/s USB 3.0 ATX AMD Mobo
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 Ram
SAPPHIRE 100282-3SR Radeon HD 5850 (Cypress Pro) 1GB 256-bit DDR5 Video Card
SAMSUNG Spinpoint F4 HD322GJ/U 320GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
CD/DVD Burner
ARCTIC COOLING Freezer 64 Pro 92mm Ceramic CPU Cooler
Microsoft Windows 7
Which brings the grand total to about $1,007 USD and add another 181$ for shipping. I think I might check my local shops here in Anchorage, Alaska and compare to the pricing of Newegg + shipping and see if I can save any there..
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Old 10-14-2010, 09:53 PM   #5
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Default Re: Ram Compatibility and Mobo/CPU Questions

That's much better. I doubt you'll find much cheaper than newegg at local shops though. When I was in Alaska about 12 years ago, everything was much more expensive than Louisiana, and there's the way that most local shops mark the prices up a lot on components.
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