ASROCK B550 EXTREME4, Manual

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1.2 Specifications
Platform
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ATX Form Factor
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2oz Copper PCB
CPU
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Supports 3 rd Gen AMD AM4 Ryzen TM / future AMD Ryzen TM
Processors (3000 and 4000 Series Processors)*
* Not compatible with AMD Ryzen TM 5 3400G and Ryzen TM 3
3200G.
•
Digi Power design
•
14 Power Phase design
Chipset
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AMD B550
Memory
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Dual Channel DDR4 Memory Technology
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4 x DDR4 DIMM Slots
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AMD Ryzen series CPUs (Matisse) support DDR4 4733+
(OC)/4666(OC)/4600(OC)/4533(OC)/4466(OC)/4400
(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000
(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3466
(OC)/3200/2933/2667/2400/2133 ECC & non-ECC, un-
buffered memory*
•
AMD Ryzen series APUs (Renoir) support DDR4 4733+
(OC)/4666(OC)/4600(OC)/4533(OC)/4466(OC)/4400
(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000
(OC)/3866(OC)/3800(OC)/3733(OC)/3600(OC)/3466
(OC)/3200/2933/2667/2400/2133 ECC & non-ECC, un-
buffered memory*
* Please refer to Memory Support List on ASRock’s website for
more information. (http://www.asrock.com/)
* Please refer to page 23 for DDR4 UDIMM maximum
frequency support.
•
Max. capacity of system memory: 128GB
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Supports Extreme Memory Profile (XMP) memory modules
•
15μ Gold Contact in DIMM Slots