only 8gb ram of 16gb usable half of the ram is hardware reserved even after formatting

Deleted member 216316 · Dec 21, 2021

Retrorockit said:
Some low end WIN7 versions have an 8GB RAM limit. An older low end system might have this.

Max memory limits for 64-bit Windows 7

While the maximum RAM limit for 32-bit Windows 7 editions is 4GB, when it comes to 64-bit editions, the amount of memory that the OS can address depends on which edition you are running.

www.zdnet.com

The other possibility is that the CPU needs 4 RAM modules to address 16GB. Older hardware may not be able to use RAM module sizes that didn't exist yet.
I would go to Userbenchmark.com and see if any others are getting 16GB on that MB. If you run your sytem there it will be put in with other similar systems.

Please click the green human to continue - UserBenchmark

if there was a limit my ram would be always 8 usable but it was always 16 before sometimes it changed to 8 but it was because of voltage then i fixed it

Please click the green human to continue - UserBenchmark

Shrek · Dec 21, 2021

How easy is it to damage RAM through over-voltage?

Or static, although that may be harder
Can static KILL your PC? (ft. Electroboom) - YouTube

de.das.dude · Dec 22, 2021

hello

please install AIDA64, and find the memory stick details from there and post them here.

This issue can be caused by memory mismatch. I got the same thing in my system since i have different sticks with different timings.
If this is the issue, the way to solve it is quite advanced and requires setting the mem timings in BIOS to the higher values out of all the memory sticks you have.

Ruru · Dec 22, 2021

OneMoar said:
need SPD slot2
the fact that you are in single channel when you have two sticks immediately tells me there is something wrong with the memory kit or the kit is not compatible with the board

A good point. On normal cases that would be impossible.

Andy Shiekh said:
How easy is it to damage RAM through over-voltage?

Or static, although that may be harder
Can static KILL your PC? (ft. Electroboom) - YouTube

Maybe with some true OC, dunno... haven't managed to do that yet but I still use "safe" range on my RAM

Deleted member 216316 · Dec 22, 2021

de.das.dude said:
hello

please install AIDA64, and find the memory stick details from there and post them here.

This issue can be caused by memory mismatch. I got the same thing in my system since i have different sticks with different timings.
If this is the issue, the way to solve it is quite advanced and requires setting the mem timings in BIOS to the higher values out of all the memory sticks you have.

shared system memory? also wheres the ram category cant find it

de.das.dude · Dec 23, 2021

Chiron_853 said:
View attachment 229795
shared system memory? also wheres the ram category cant find it

I dont have new version but for me, it can be found from Motherboard -> SPD -> select the memory stick you want to see details of.

get the software from here https://www.aida64.com/downloads

Deleted member 216316 · Dec 23, 2021

de.das.dude said:
I dont have new version but for me, it can be found from Motherboard -> SPD -> select the memory stick you want to see details of.

get the software from here https://www.aida64.com/downloads

MY RAM IS BACK ITSELFF YESS

PerfectWave · Dec 23, 2021

so how did you solve your problem?

AusWolf · Dec 23, 2021

I'm glad your problem is solved.

Just for future reference if anyone with the same issue finds this topic:

RAM mismatch can also be caused by mismatched ranks. A CPU's memory controller doesn't only allocate channels, but also ranks.

I've just tried to fix an old laptop with an AMD A4-1250 APU with a single channel memory controller, 2 GB onboard memory and one memory slot. I have a 2 GB and two 4 GB sticks at home. The laptop works with all of them, but Windows/Linux detects 6 GB RAM only with one of the 4 GB sticks. With the other 4 GB and the 2 GB stick, the OS detected only 2 GB RAM even though it was all recognised in the BIOS.

The solution: the 4 GB stick that works has 8 memory chips in single rank operation while the other 4 GB and 2 GB sticks have 16 chips each in dual rank. The processor's memory controller can only map two ranks - one is reserved for the integrated 2 GB and one for the memory slot. So the RAM stick I install has to be single rank for the CPU to map and OS to detect it.

Deleted member 216316 · Dec 23, 2021

PerfectWave said:
so how did you solve your problem?

yes i lowered paging file and it fixed it

Caring1 · Dec 23, 2021

Chiron_853 said:
yes i lowered paging file and it fixed it

As I suspected and pointed out at the start.

de.das.dude · Dec 23, 2021

Your ram doesn't seem to be running at the correct frequency though. Make sure you are running it at its maximun of 1600mhz. Maybe thats why its been fixed?

(but before that make sure your laptop supports that)

Bomby569 · Dec 23, 2021

like i said it had nothing to do with the hardware itself. Glad it's fixed. Weird issue you got mate.

tussinman · Dec 26, 2021

Chiron_853 said:
did you read what i said lmao

Well this sure aged well. He was actually directing you in the right direction and you ended up just laughing at him.......

Caring1 said:
As I suspected and pointed out at the start.

Yeah I noticed that, you directed him in the right direction and he basically laughed at you

Deleted member 216316 · Jan 7, 2022

tussinman said:
Well this sure aged well. He was actually directing you in the right direction and you ended up just laughing at him.......

Yeah I noticed that, you directed him in the right direction and he basically laughed at you

yes but i also replaced rams again after that or it wouldnt work

de.das.dude said:
Your ram doesn't seem to be running at the correct frequency though. Make sure you are running it at its maximun of 1600mhz. Maybe thats why its been fixed?

(but before that make sure your laptop supports that)

and i dont get that 333 mhz too cpu z always showed my voltage everything different when i change it in bios it always shows same

ArdWar · Jan 7, 2022

Lol, wtf is going on here...?

Just do a memtest86. At least it can rule out OS and/or software problem. You don't even need to do the complete test.

Deleted member 216316 · Jan 8, 2022

ArdWar said:
Lol, wtf is going on here...?

Just do a memtest86. At least it can rule out OS and/or software problem. You don't even need to do the complete test.

this can't be right

de.das.dude · Jan 10, 2022

it is right

Deleted member 216316 · Mar 12, 2022

literally the same issue happened again wtf

System Name	CyberPowerPC ET8070
Processor	Intel Core i5-10400F
Motherboard	Gigabyte B460M DS3H AC-Y1
Memory	2 x Crucial Ballistix 8GB DDR4-3000
Video Card(s)	MSI Nvidia GeForce GTX 1660 Super
Storage	Boot: Intel OPTANE SSD P1600X Series 118GB M.2 PCIE
Display(s)	Dell P2416D (2560 x 1440)
Power Supply	EVGA 500W1 (modified to have two bridge rectifiers)
Software	Windows 11 Home

System Name	Monke \| Work Thinkpad\| J1nnx took 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

System Name	4K-gaming / console
Processor	AMD Ryzen 7 5800X / Intel Core i7-6700K
Motherboard	Asus ROG Crosshair VII Hero / Asus Z170-K
Cooling	Alphacool Eisbaer 360 / Alphacool Eisbaer 240
Memory	32GB DDR4-3466 / 16GB DDR4-3000
Video Card(s)	Asus RTX 3080 TUF OC / Powercolor RX 6700 XT
Storage	3.5TB of SSDs / several small SSDs
Display(s)	Acer 27" 4K120 IPS + Lenovo 32" 4K60 IPS
Case	Corsair 4000D AF White / DeepCool CC560 WH
Audio Device(s)	Sony WH-CN720N
Power Supply	EVGA G2 750W / Fractal ION Gold 550W
Mouse	Logitech MX518 / Logitech G400s
Keyboard	Roccat Vulcan 121 AIMO / NOS C450 Mini Pro
VR HMD	Oculus Rift CV1
Software	Windows 11 Pro / Windows 11 Pro
Benchmark Scores	They run Crysis

System Name	Monke \| Work Thinkpad\| J1nnx took 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

System Name	Gaming PC / I7 XEON
Processor	I7 4790K @stock / XEON W3680 @ stock
Motherboard	Asus Z97 MAXIMUS VII FORMULA / GIGABYTE X58 UD7
Cooling	X61 Kraken / X61 Kraken
Memory	32gb Vengeance 2133 Mhz / 24b Corsair XMS3 1600 Mhz
Video Card(s)	Gainward GLH 1080 / MSI Gaming X Radeon RX480 8 GB
Storage	Samsung EVO 850 500gb ,3 tb seagate, 2 samsung 1tb in raid 0 / Kingdian 240 gb, megaraid SAS 9341-8
Display(s)	2 BENQ 27" GL2706PQ / Dell UP2716D LCD Monitor 27 "
Case	Corsair Graphite Series 780T / Corsair Obsidian 750 D
Audio Device(s)	ON BOARD / ON BOARD
Power Supply	Sapphire Pure 950w / Corsair RMI 750w
Mouse	Steelseries Sesnsei / Steelseries Sensei raw
Keyboard	Razer BlackWidow Chroma / Razer BlackWidow Chroma
Software	Windows 1064bit PRO / Windows 1064bit PRO

only 8gb ram of 16gb usable half of the ram is hardware reserved even after formatting

Deleted member 216316

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Max memory limits for 64-bit Windows 7

Shrek

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System Name	Nebulon B
Processor	AMD Ryzen 7 7800X3D
Motherboard	MSi PRO B650M-A WiFi
Cooling	be quiet! Dark Rock 4
Memory	2x 24 GB Corsair Vengeance DDR5-4800
Video Card(s)	AMD Radeon RX 6750 XT 12 GB
Storage	2 TB Corsair MP600 GS, 2 TB Corsair MP600 R2
Display(s)	Dell S3422DWG, 7" Waveshare touchscreen
Case	Kolink Citadel Mesh black
Audio Device(s)	Logitech Z333 2.1 speakers, AKG Y50 headphones
Power Supply	Seasonic Prime GX-750
Mouse	Logitech MX Master 2S
Keyboard	Logitech G413 SE
Software	Bazzite (Fedora Linux) KDE Plasma

System Name	H7 Flow 2024
Processor	AMD 5800X3D
Motherboard	Asus X570 Tough Gaming
Cooling	Custom liquid
Memory	32 GB DDR4
Video Card(s)	Intel ARC A750
Storage	Crucial P5 Plus 2TB.
Display(s)	AOC 24" Freesync 1m.s. 75Hz
Mouse	Lenovo
Keyboard	Eweadn Mechanical
Software	W11 Pro 64 bit

Processor	Ryzen 5 5700x
Motherboard	B550 Elite
Cooling	Thermalright Perless Assassin 120 SE
Memory	32GB Fury Beast DDR4 3200Mhz
Video Card(s)	Gigabyte 3060 ti gaming oc pro
Storage	Samsung 970 Evo 1TB, WD SN850x 1TB, plus some random HDDs
Display(s)	LG 27gp850 1440p 165Hz 27''
Case	Lian Li Lancool II performance
Power Supply	MSI 750w
Mouse	G502

System Name	Asus X450JB
Processor	Intel Core i7-4720HQ
Motherboard	Asus
Memory	2x 4GiB
Video Card(s)	nVidia GT940M
Storage	2x 1TB