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ASRock 990FX Extreme3 ATX AM3+/AM3 Motherboard

( 4.1 Average / 18 Ratings )




Part #

990FX Extreme3
(or) 990FX-EXT3

Form Factor


CPU Socket




Memory Slots

4 x 240-pin DIMM

Memory Type

DDR3-800 / 1066 / 1333 / 1600 / 1866 / 2100

Max Memory


RAID Support


Onboard Video


CrossFire Support


SLI Support


SATA 6 Gb/s


eSATA 6Gb/s


Onboard Ethernet

1 x 10/100/1000 Mbps

Onboard USB 3.0 Header(s)


Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
SuperBiiz $101.99 -$15.00 $86.99+
15% off (up to $15) w/ promo code: CYBERBLKGOBBLE, ends 2015-11-30 23:59:59
Amazon $157.14 Free two-day shipping with Amazon Prime In stock $157.14
( 6 new from $140.10, 4 used from $89.98. Last updated 58 seconds ago. )
* Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Price History (Excluding Tax & Combo Deals) History:


from completed build Stormbringer

Weak 4+1 power phase holds back overclocking potential, but has Crossfire capability, so there's that. It looks cool, too - dark PCB and heatsinks. UEFI BIOS leaves a bit to be desired compared to higher-end boards, but it's actually not bad. At least it's UEFI.

from completed build The Red Viper - My First Build

A very good Motherboard for my first build, also the cheapest one I could find. Great quality, not flimsy feeling or anything. I would highly recommend this to anyone looking for a good starter MOBO. Only con is that the positioning of the SATA III plugs are right below the mounting points of the GPU, my GPU is long enough to cover the plugs right over. Im assuming i will run into this problem on most MOBO's but still. Also, no USB 3.0 headers :<. Was going to buy a PCIE header expansion card, but decided against it. The 990fx Extreme series is great. Going to buy the best one in the series. :D

from completed build The Monster (Budget Gaming PC)

Positives: It works very well. Not a lot of capacitors for the CPU, overclockers beware. It works, haven't had any non-user-induced issues.

Negatives: Not for overclocking. As I'm writing this the voltage shown on HWMonitor is bouncing from 1.264 to 1.256 rapidly. Not due to temps, everything is very cool right now. The clock rate on the CPU also fluctuates (for no apparent reason?) from time to time, again not due to temps. Due to the naive overclock, I messed up the thermal throttling and had to clear the CMOS, which seemed to fix it. Still, though. I'd prefer it a lot more if it had one less power phase for two or more capacitors.