After getting some awful memory benchmarks, I referred to the manual which states:
If you adopt DDR3 2100/1866/1800/1600 memory modules on thismotherboard, it is recommended to install them on DDR3_A2 andDDR3_B2 slots.
Please install the memory module into the slots DDR3_A2 andDDR3_B2 for the first priority.
This reads to me.. that if you use default speeds, You can use either A1+B1 or A2+B2, but for higher speeds (like me), I should be using A2+B2 -- I wasn't.
So I SWITCHED. Before I got dual-channel.. now I don't. The manual states either combination should work.
Is this a case of just needing to clear the CMOS?
Originally Posted by parsec
Depends on the processor, at least going by the specs. Some AMD processors have higher memory speed than similar Intel processors.
Intel Core i7-4770K - CM8064601464206 / BX80646I74770K / BXC80646I74770K
AMD FX-Series FX-6300 - FD6300WMW6KHK / FD6300WMHKBOX
Speaking about memory speed, Intel was always surprisingly much faster than AMD. Even during periods that AMD was somehow ahead of intel (Athlon FX ages), Intel had notably better memory performance. AMD was the first who took memory controller on die, even now, AMD's on-die was in par with Intel's on-chip.Intel Core i7-4770K - CM8064601464206 / BX80646I74770K / BXC80646I74770K
AMD FX-Series FX-6300 - FD6300WMW6KHK / FD6300WMHKBOX
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Asrock 970 Extreme3 Ram Slots
4GB 2X2GB RAM Memory Compatible for ASRock Motherboards 970 Extreme3 MemoryMasters Memory Module 240pin PC3-MHz DDR3 ECC UDIMM Upgrade. Model #: M-M-5760B00HUHL532. 8GB RAM Memory for ASRock Motherboards 970 Extreme3 R2.0 240pin PC3-12800 DDR3 ECC UDIMM 1600MHz MemoryMasters Memory Module Upgrade. Model #: M-M-3122 B00HCP65GY.
That benchmark compares some 2011 AMD CPUs with some 2009 Intel ones!