APU build not recognizing RAM

lilhasselhoffer · Jul 16, 2011

Hello,

I am looking for some assistance with a very recent build. The following components are in the build:
APU A8-3850
Gigabyte GA-A75-UDH4
600w rosewill supply
Win 7 Home Premium x64
8GB ram Gskill F3 (1333)

I have enabled ahci, updated the bios, reseated the ram, and made sure they were no memory limitations in msconfig. Despite this, I only see 6GB in windows. Memtest shows 8GB, CPU-z shows 8GB, and speedfan show 8GB ram but windows will not acknowledge its (the extra 2GB) existance.

What is the next step to get the extra two gigs recognized, or am I missing something?

Jetster · Jul 16, 2011

Pull all the ram and test it in another system with memtest. Or test it one at a time in your system

Why enabled ahci?

cheesy999 · Jul 16, 2011

lilhasselhoffer said:
I have enabled ahci, updated the bios, reseated the ram, and made sure they were no memory limitations in msconfig. Despite this, I only see 6GB in windows. Memtest shows 8GB, CPU-z shows 8GB, and speedfan show 8GB ram but windows will not acknowledge its (the extra 2GB) existance.

The GPU's in APU's Use system ram, you've probably got the memory share set to high in the bios, and ram set to be graphics ram by the bios won't show up in task manager, as its hardware reserved

Solution = turn down the shared memory setting in bios to ~500MB, should give you access to more ram, and you won't have a problem on the graphics front

btarunr · Jul 16, 2011

Run Resource Monitor, and in the "memory" tab, see if the missing memory amount is being shown under "Hardware Reserved" (gray). Tell us what you see there.

lilhasselhoffer · Jul 16, 2011

Jetster said:
Pull all the ram and test it in another system with memtest. Or test it one at a time in your system

Why enabled ahci?

Memtest run, no problems. I ran at worse than stock to make sure everything was fine. I read on an AMD forum that enabling AHCI might help. I don't get the logic either...

cheesy999 said:
The GPU's in APU's Use system ram, you've probably got the memory share set to high in the bios, and ram set to be graphics ram by the bios won't show up in task manager, as its hardware reserved

Solution = turn down the shared memory setting in bios to ~500MB, should give you access to more ram, and you won't have a problem on the graphics front

The shared memory is set high (2.5 GB). It's accounted for, but is not what I am looking at.

Here's what I'm dealing with:

http://imageshack.us/photo/my-images/52/apubuildinfo.png/

btarunr said:
Run Resource Monitor, and in the "memory" tab, see if the missing memory amount is being shown under "Hardware Reserved" (gray). Tell us what you see there.

Resource monitor results:
Installed 6144 MB
Total 3581 MB
Cached 1212 MB
Hardware Reserved 2563 MB
Available 2468

TheoneandonlyMrK · Jul 16, 2011

i think it says your mems compatible

http://download.gigabyte.eu/FileList/Memory/mb_memory_ga-a75-ud4h.pdf

youd have to check the exact model nos

you have got them in 1 and 2 or 3 and 4 ie dual channel mode as in the same channel 2x double sided may have issues, sorry its obv but worth mentioning

Pestilence · Jul 16, 2011

You bought a Llano? Hmm.. Waiting for results

lilhasselhoffer · Jul 17, 2011

theoneandonlymrk said:
i think it says your mems compatible

http://download.gigabyte.eu/FileList/Memory/mb_memory_ga-a75-ud4h.pdf

youd have to check the exact model nos

you have got them in 1 and 2 or 3 and 4 ie dual channel mode as in the same channel 2x double sided may have issues, sorry its obv but worth mentioning

I checked the Mobo manual before construction. The memory is in the correct slots (1 and 2).

Pestilence said:
You bought a Llano? Hmm.. Waiting for results

Beyond this memory issue, I'm getting some decent numbers. While not exactly a good indicator, the raw computations in WEI are rated at a 7.4. The thing that draws the system down are the graphics, but that is to be expected.

I've run a 1080p clip without any stuttering or stalling (though the cores all ran around 45% usage). As far as a workhorse, I can't complain. Gaming is another story. A quick run through of Crysis 2 was playable on the lowest settings, but just barely. I can't comment on the onboard video card expansion, because the person I'm building for wouldn't give the go ahead to get a separate card.

It's miles ahead of the Intel integrated graphics, but definitely suffers on raw computational capability. For a standard user, it isn't a bad compromise between price and performance. It isn't for a power user, but it's good for large segment of the market.

jimfaster · Jul 21, 2011

The only fix for me was to flash the BIOS to the most updated version which made the "auto" config in the BIOS for the RAM work.

de.das.dude · Jul 21, 2011

i think you need a new BIOS?

lilhasselhoffer · Jul 24, 2011

Sigh. I updated the bios before I updated the OS. Gigabyte tech support is moving slow enough to be win the race for slowest glacier on the planet.

Apparently this issue doesn't exist for everyone.

de.das.dude · Jul 24, 2011

then RMA it!

JrRacinFan · Jul 24, 2011

How much ram do you have allocated to the integrated graphics?

eidairaman1 · Jul 25, 2011

what version of windows are you running as in bits?

de.das.dude · Jul 25, 2011

eidairaman1 said:
what version of windows are you running as in bits?

read whole thread, its in first post. he is using x64

System Name	Juliette // HTPC
Processor	Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard	ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling	Noctua NH-U12 Black // Stock
Memory	Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s)	ASUS RTX4070 OC// GTX 1650
Storage	Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s)	ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case	Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s)	Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply	Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse	Cooler Master MM710 53G
Keyboard	Logitech 920-009300 G512 SE
Software	Windows 10 Pro // Windows 10 Pro

System Name	PC
Processor	AMD Ryzen 3600
Motherboard	MSI B450 Mortar Max
Cooling	Phanteks PH-TC12DX, 3 x NZXT FN 140mm, 1x NZXT FV V2 120mm
Memory	32gb DDR4 3200mhz
Video Card(s)	ASUS R9 290 DCII-OC 4GB
Storage	corsair mp600 1TB
Display(s)	LG 27MB85Z 27" 1440p
Case	NZXT Source 340
Power Supply	Thermaltake 675w
Mouse	Logitech G500S
Keyboard	Logitech G510S
Software	Windows 8.1 64 bit

System Name	RBMK-1000
Processor	AMD Ryzen 7 5700G
Motherboard	ASUS ROG Strix B450-E Gaming
Cooling	DeepCool Gammax L240 V2
Memory	2x 8GB G.Skill Sniper X
Video Card(s)	Palit GeForce RTX 2080 SUPER GameRock
Storage	Western Digital Black NVMe 512GB
Display(s)	BenQ 1440p 60 Hz 27-inch
Case	Corsair Carbide 100R
Audio Device(s)	ASUS SupremeFX S1220A
Power Supply	Cooler Master MWE Gold 650W
Mouse	ASUS ROG Strix Impact
Keyboard	Gamdias Hermes E2
Software	Windows 11 Pro

System Name	RyzenGtEvo/ Asus strix scar II
Processor	Amd R5 5900X/ Intel 8750H
Motherboard	Crosshair hero8 impact/Asus
Cooling	360EK extreme rad+ 360$EK slim all push, cpu ek suprim Gpu full cover all EK
Memory	Corsair Vengeance Rgb pro 3600cas14 16Gb in four sticks./16Gb/16GB
Video Card(s)	Powercolour RX7900XT Reference/Rtx 2060
Storage	Silicon power 2TB nvme/8Tb external/1Tb samsung Evo nvme 2Tb sata ssd/1Tb nvme
Display(s)	Samsung UAE28"850R 4k freesync.dell shiter
Case	Lianli 011 dynamic/strix scar2
Audio Device(s)	Xfi creative 7.1 on board ,Yamaha dts av setup, corsair void pro headset
Power Supply	corsair 1200Hxi/Asus stock
Mouse	Roccat Kova/ Logitech G wireless
Keyboard	Roccat Aimo 120
VR HMD	Oculus rift
Software	Win 10 Pro
Benchmark Scores	8726 vega 3dmark timespy/ laptop Timespy 6506

System Name	Monke \| Work Thinkpad\| Old Monke
Processor	Ryzen 5600X \| Ryzen 5500U \| FX8320
Motherboard	ASRock B550 Extreme4 \| ? \| Asrock 990FX Extreme 4
Cooling	240mm Rad \| Not needed \| hyper 212 EVO
Memory	2x16GB DDR4 3600 Corsair RGB \| 16 GB DDR4 3600 \| 16GB DDR3 1600
Video Card(s)	Sapphire Pulse RX6700XT 12GB \| Vega 8 \| Sapphire Pulse RX580 8GB
Storage	Samsung 980 nvme (Primary) \| some samsung SSD
Display(s)	Dell 2723DS \| Some 14" 1080p 98%sRGB IPS \| Dell 2240L
Case	Ant Esports Tempered case \| Thinkpad \| Antec
Audio Device(s)	Logitech Z333 \| Jabra corpo stuff
Power Supply	Corsair RM750e \| not needed \| Corsair GS 600
Mouse	Logitech G400 \| nipple
Keyboard	Logitech G213 \| stock kb is awesome \| Logitech K230
VR HMD	;_;
Software	Windows 10 Professional x3
Benchmark Scores	There are no marks on my bench

APU build not recognizing RAM

lilhasselhoffer

Jetster

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btarunr

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System Name	Dual Build Streamer
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Memory	32GB T-Force Deltas : 16GB Dominator Platinums
Video Card(s)	PowerColor 7900 XTX Liquid Devil: iGPU
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Audio Device(s)	Onboard : Onboard
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Mouse	Corsair M65 RGB Elite White
Keyboard	Hyperx Origins 65
Software	Windows 10

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Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling	Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
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