Asrock Z77 Extreme4 Ram Slots

Hello Everyone,
Guess I'll start with..I've purchased the Z77 Extreme4 on 11/28/2013 and 4 G.SKILL Ripjaws X Series (F3-17000CL9D) along with various other components.
Recently, I've upgraded my GPU to the EVGA GeForce GTX 980 Ti 6GB HYBRID up from the GeForce GTX 660 2GB. Before the install, I was registering 16GBytes of the G.SKILL Ripjaws X Series, now my Geforce Experience and System are only showing 8GBytes of installed memory.
I've gone into my Bios and noticed it shows there as well 'Total Memory 8192MB'. Also that DDR3_A1 and B1 show ':NONE'. In 'System Browser' it shows all 4 sticks registered though. Also in CPUID, it shows 16GBytes registered.
All actions taken thus far..
- Before opening my tower and handling the memory sticks, I utilized Windows' built-in memory diagnostic tool to check my RAM ?嚙練dsched.exe?? No issues detected.
- Removed all ram sticks and inserted, one at a time, each mem stick into each slot on the mobo, beginning with slot 1 and moving over to the adjacent slot with each power cycle. I've done this with each stick individually. No boot errors with any stick in any slot.
My UEFI Version is P2.90
My current rig setup.. If you don't mind me copying and pasting.
- ASRock Z77 Extreme4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
- G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)
- EVGA GeForce GTX 980 Ti 6GB HYBRID
- Seagate Desktop HDD ST1000DM003 1TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
- SAMSUNG 840 EVO MZ-7TE120BW 2.5' 120GB SATA III TLC Internal Solid State Drive
- Intel Core i5-3570K Ivy Bridge Quad-Core 3.4GHz (3.8GHz Turbo) LGA 1155 77W BX80637I53570K Desktop Processor Intel HD Graphics 4000
- Cooler Master Hyper 212 EVO - CPU Cooler with 120 mm PWM Fan
- CORSAIR HX Series HX750 750W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply
- Windows 10 Home 64-bit
No over-clocking or alternate tuning have been made on this system. Simple plug and play.
I'd like to thank everyone for stopping by to read my ramblings regarding my issue. Any input would be appreciated. If needing any further details, don't hesitate to ask.
Thank you,
..Jason
Edited by FS_OK - 02 Mar 2016 at 2:57pm

Hello Everyone,
Guess I'll start with..I've purchased the Z77 Extreme4 on 11/28/2013 and 4 G.SKILL Ripjaws X Series (F3-17000CL9D) along with various other components.
Recently, I've upgraded my GPU to the EVGA GeForce GTX 980 Ti 6GB HYBRID up from the GeForce GTX 660 2GB. Before the install, I was registering 16GBytes of the G.SKILL Ripjaws X Series, now my Geforce Experience and System are only showing 8GBytes of installed memory.
I've gone into my Bios and noticed it shows there as well 'Total Memory 8192MB'. Also that DDR3_A1 and B1 show ':NONE'. In 'System Browser' it shows all 4 sticks registered though. Also in CPUID, it shows 16GBytes registered.
All actions taken thus far..
- Before opening my tower and handling the memory sticks, I utilized Windows' built-in memory diagnostic tool to check my RAM ?嚙練dsched.exe?? No issues detected.
- Removed all ram sticks and inserted, one at a time, each mem stick into each slot on the mobo, beginning with slot 1 and moving over to the adjacent slot with each power cycle. I've done this with each stick individually. No boot errors with any stick in any slot.
My UEFI Version is P2.90
My current rig setup.. If you don't mind me copying and pasting.
- ASRock Z77 Extreme4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
- G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)
- EVGA GeForce GTX 980 Ti 6GB HYBRID
- Seagate Desktop HDD ST1000DM003 1TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
- SAMSUNG 840 EVO MZ-7TE120BW 2.5' 120GB SATA III TLC Internal Solid State Drive
- Intel Core i5-3570K Ivy Bridge Quad-Core 3.4GHz (3.8GHz Turbo) LGA 1155 77W BX80637I53570K Desktop Processor Intel HD Graphics 4000
- Cooler Master Hyper 212 EVO - CPU Cooler with 120 mm PWM Fan
- CORSAIR HX Series HX750 750W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply
- Windows 10 Home 64-bit
No over-clocking or alternate tuning have been made on this system. Simple plug and play.
I'd like to thank everyone for stopping by to read my ramblings regarding my issue. Any input would be appreciated. If needing any further details, don't hesitate to ask.
Thank you,
..Jason
Edited by FS_OK - 02 Mar 2016 at 2:57pm

CPU
- Supports 3rd and 2nd Generation Intel® Core™ i7 / i5 / i3 in LGA1155 Package
- Digi Power Design
- 8 + 4 Power Phase Design
- Supports Intel® Turbo Boost 2.0 Technology
- Supports Intel® K-Series unlocked CPU
- Supports Hyper-Threading Technology
Chipset
- Intel® Z77
- Supports Intel® Rapid Start Technology and Smart Connect Technology
Memory
- Dual Channel DDR3 memory technology
- 4 x DDR3 DIMM slots
- Supports DDR3 2800+(OC)/2400(OC)/2133(OC)/1866(OC)/1600/1333/1066 non-ECC, un-buffered memory
- Max. capacity of system memory: 32GB
- Supports Intel® Extreme Memory Profile (XMP) 1.3 / 1.2
BIOS
- 64Mb AMI UEFI Legal BIOS with GUI support
- Supports 'Plug and Play'
- ACPI 1.1 Compliance Wake Up Events
- Supports jumperfree
- SMBIOS 2.3.1 Support
- CPU Core, IGPU, DRAM, 1.8V PLL, VTT, VCCSA Voltage Multi-adjustment
Graphics
- Supports Intel® HD Graphics Built-in Visuals : Intel® Quick Sync Video 2.0, Intel® InTru™ 3D, Intel® Clear Video HD Technology, Intel® Insider™, Intel® HD Graphics 2500/4000
- Pixel Shader 5.0, DirectX 11 with Intel® Ivy Bridge CPU. Pixel Shader 4.1, DirectX 10.1 with Intel® Sandy Bridge CPU.
- Max. shared memory 1760MB
- Multi VGA Output options: D-Sub, DVI-D and HDMI
- Supports HDMI 1.4a Technology with max. resolution up to 1920x1200 @ 60Hz
- Supports DVI with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 2048x1536 @ 75Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI (Compliant HDMI monitor is required)
- Supports HDCP function with DVI and HDMI ports
- Supports Full HD 1080p Blu-ray (BD) / HD-DVD playback with DVI and HDMI ports
Audio
- 7.1 CH HD Audio with Content Protection (Realtek ALC898 Audio Codec)
- Premium Blu-ray audio support
- Supports THX TruStudio™
LAN
- PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Broadcom BCM57781
- Supports Wake-On-LAN
- Supports Energy Efficient Ethernet 802.3az
- Supports PXE
Expansion / Connectivity Slots
- 2 x PCI Express 3.0 x16 slots (PCIE2/PCIE3: single at x16 (PCIE2) / x8 (PCIE3) or dual at x8/x8 mode)
- 2 x PCI Express 2.0 x1 slots
- 2 x PCI slots
- Supports AMD Quad CrossFireX™ and CrossFireX™
- Supports NVIDIA® Quad SLI™ and SLI™
SATA3
- 2 x SATA3 6.0 Gb/s connectors by Intel® Z77, support RAID (RAID 0, RAID 1, RAID 5, RAID 10, Intel® Rapid Storage and Intel® Smart Response Technology), NCQ, AHCI and 'Hot Plug' functions
- 2 x SATA3 6.0 Gb/s connectors by ASMedia ASM1061, support NCQ, AHCI and 'Hot Plug' functions (SATA3_A1 connector is shared with eSATA3 port)
USB 3.0
- 2 x Rear USB 3.0 ports by Intel® Z77, support USB 1.0/2.0/3.0 up to 5Gb/s
- 2 x Rear USB 3.0 ports by ASMedia ASM1042, support USB 1.0/2.0/3.0 up to 5Gb/s
- 1 x Front USB 3.0 header by Intel® Z77 (supports 2 USB 3.0 ports), supports USB 1.0/2.0/3.0 up to 5Gb/s
Connector
- 4 x SATA2 3.0 Gb/s connectors, support RAID (RAID 0, RAID 1, RAID 5, RAID 10, Intel® Rapid Storage and Intel® Smart Response Technology), NCQ, AHCI and Hot Plug functions
- 4 x SATA3 6.0 Gb/s connectors
- 1 x IR header
- 1 x CIR header
- 1 x COM port header
- 1 x HDMI_SPDIF header
- 1 x Power LED header
- CPU/Chassis/Power FAN connector
- 24 pin ATX power connector
- 8 pin 12V power connector
- Front panel audio connector
- 3 x USB 2.0 headers (support 6 USB 2.0 ports)
- 1 x USB 3.0 header (supports 2 USB 3.0 ports)
- 1 x Dr. Debug with LED
Rear Panel I/O
- 1 x PS/2 Keyboard/Mouse Port
- 1 x D-Sub Port
- 1 x DVI-D Port
- 1 x HDMI Port
- 1 x Optical SPDIF Out Port
- 2 x Ready-to-Use USB 2.0 Ports
- 1 x eSATA3 Connector
- 4 x Ready-to-Use USB 3.0 Ports
- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
- 1 x Clear CMOS Switch with LED
- HD Audio Jack: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone
Other Features / Miscellaneous
- ASRock Extreme Tuning Utility (AXTU)
- ASRock Instant Boot
- ASRock Instant Flash
- ASRock APP Charger
- ASRock SmartView
- ASRock XFast USB
- ASRock XFast LAN
- ASRock XFast RAM
- ASRock Crashless BIOS
- ASRock OMG (Online Management Guard)
- ASRock Internet Flash
- Lucid Virtu Universal MVP
- Hybrid Booster:
- CPU Frequency Stepless Control
- ASRock U-COP
- Boot Failure Guard (B.F.G.)
- Combo Cooler Option (C.C.O.)
- Good Night LED
Smart Switch
- 1 x Power Switch with LED
- 1 x Reset Switch with LED
- 1 x Clear CMOS Switch with LED
Support CD
- Drivers, Utilities, AntiVirus Software (Trial Version), CyberLink MediaEspresso 6.5 Trial, ASRock MAGIX Multimedia Suite - OEM
Accessories
- 1 x ASRock SLI_Bridge_2S Card
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
Hardware Monitor
- CPU Temperature Sensing
- Chassis Temperature Sensing
- CPU/Chassis/Power Fan Tachometer
- CPU/Chassis Quiet Fan (Allow Chassis Fan Speed Auto-Adjust by CPU Temperature)
- CPU/Chassis Fan Multi-Speed Control
- Voltage Monitoring: +12V, +5V, +3.3V, CPU Vcore
Form Factor
- ATX Form Factor: 12.0-in x 8.6-in, 30.5 cm x 21.8 cm
- Premium Gold Capacitor design (100% Japan-made high-quality Conductive Polymer Capacitors)
OS
- Microsoft® Windows® 7 / 7 64-bit / Vista™ / Vista™ 64-bit / XP / XP 64-bit compliant
Certifications
- FCC, CE, WHQL
- ErP/EuP Ready (ErP/EuP ready power supply is required)

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