Asus P8P67 problem does not detect all memory

4ghz · Feb 9, 2014

I have 8 GB (4x2GB sticks) installed but BIOS only detect 4GB installed rather than 8GB I expected. I have reseated all 4 of them, I have rearrainged them, BIOS seems to only detect 2 sticks. If I run CPU-Z it does show all 4 sticks for 8GB total. Windows and BIOS however report only 4GB.

Windows 7 64-bit (yes, 64 bits I checked it)
Intel 2700k
Asus P8P67 Pro (uses UEFI rather than legacy BIOS)

Either one of the slot is bad or there's a setting in BIOS that may be inadverantly disabling one set of slots. Anyway to check on that?

micropage7 · Feb 9, 2014

have you tried to reset your bios too?

Steve-007UK · Feb 9, 2014

Don't some mobo's have a memory mapping option in bios that needs to be tunred on or off so all ram is seen? Sure i read about that a few times with asus boards.

Aquinus · Feb 9, 2014

Did you try reseating your CPU? Don't over-tighten the cooler either as too might force might prevent some pins from making good contact. Can you get the machine to start up with DIMMs in just one channel or the other?

4ghz · Feb 18, 2014

Tried reseating CPU, tried reseating RAM, tried RAM in another computer, tried RAM from another computer in this one. Last week, it started failing even more, detecting only 1 stick, then it won't boot anymore, stopping at error 55 (RAM not installed)

I just got a replacement mobo in today, installed, setup, and all 8GB was detected on the first try. So.... my older mobo was a lemon whose problem wasn't discovered for a couple years. :/ Probably bad trace or cracked solder or something but mobo repair isn't my forte. Worse, the motherboard is just a few months out of warranty.

System Name	micropage7
Processor	Intel Xeon X3470
Motherboard	Gigabyte Technology Co. Ltd. P55A-UD3R (Socket 1156)
Cooling	Enermax ETS-T40F
Memory	Samsung 8.00GB Dual-Channel DDR3
Video Card(s)	NVIDIA Quadro FX 1800
Storage	V-GEN03AS18EU120GB, Seagate 2 x 1TB and Seagate 4TB
Display(s)	Samsung 21 inch LCD Wide Screen
Case	Icute Super 18
Audio Device(s)	Auzentech X-Fi Forte
Power Supply	Silverstone 600 Watt
Mouse	Logitech G502
Keyboard	Sades Excalibur + Taihao keycaps
Software	Win 7 64-bit
Benchmark Scores	Classified

System Name	PC-Chips
Processor	Ryzen 5 5600x
Motherboard	Asus ROG Strix B550-F Gaming.
Cooling	Thermalright Peerless Assassin 120 SE CPU Air Cooler 6 heat pipes.
Memory	Patriot Viper 32gig dual channel 3600mhz
Video Card(s)	PowerColor HellHound RX 7900 GRE OC
Storage	2X Samsung 860 EVO SSD's 500gig / 2TB crucial P3-NVME / WD-BLUE SN550 1TB M.2 / SP A55 512gig
Display(s)	Panasonic 40-inch 4k TV
Case	Modded NZXT H510
Audio Device(s)	Realtek S1220A - Yamaha A-S501 AMP - 4 x Wharfedale diamond 9.1 speakers - Wharfedale SW150 sub
Power Supply	EVGA SuperNOVA G6 750W 80+ Gold
Mouse	Some cheap wireless thing
Keyboard	Razer Cynosa lite
VR HMD	Oculus Quest 2 128gig version
Software	Windows 11 pro 64bit

System Name	Apollo
Processor	Intel Core i9 9880H
Motherboard	Some proprietary Apple thing.
Memory	64GB DDR4-2667
Video Card(s)	AMD Radeon Pro 5600M, 8GB HBM2
Storage	1TB Apple NVMe, 4TB External
Display(s)	Laptop @ 3072x1920 + 2x LG 5k Ultrafine TB3 displays
Case	MacBook Pro (16", 2019)
Audio Device(s)	AirPods Pro, Sennheiser HD 380s w/ FIIO Alpen 2, or Logitech 2.1 Speakers
Power Supply	96w Power Adapter
Mouse	Logitech MX Master 3
Keyboard	Logitech G915, GL Clicky
Software	MacOS 12.1

Asus P8P67 problem does not detect all memory

4ghz

micropage7

Steve-007UK

Aquinus

Resident Wat-man

4ghz