TechPowerUp Announces MemTest64 - Test Memory from Within Windows

OSdevr · Apr 20, 2017

W1zzard said:
If you select a sufficiently large test size, it will send everything to pagefile, freeing memory to test, except for the kernel, which is roughly 1 GB.

I guess that's true. Good point.

DeathtoGnomes · Apr 20, 2017

@W1zzard Will you be adding the ability to temporarily change memory timings and test them to this?

Mescalamba · Apr 20, 2017

W1zzard said:
Yupyup

You true magician then! Thanks for this app.

Rosie Scenario · Apr 20, 2017

Checked it out for 10 min run. 0 errors on lpx3000 cas15@1.27V. Nice ware. Good programming. Keeper.

W1zzard · Apr 20, 2017

DeathtoGnomes said:
@W1zzard Will you be adding the ability to temporarily change memory timings and test them to this?

No, not possible on most hardware without reboot

HD64G · Apr 20, 2017

Many congrats to @W1zzard for his effort in making this work so well in windows. A tool that every PC enthusiast was missing, as RAM testing was very slow and painful from DOS. Thanks again!

ERazer · Apr 20, 2017

ima check this out when i get home :lovetpu:

Solaris17 · Apr 20, 2017

W1zzard said:
Yupyup

Im in love.

TheMailMan78 · Apr 20, 2017

W1zzard said:
Yupyup

YOU'RE A F3CKING INTERNET GOD!

Derek12 · Apr 20, 2017

Very good

A 32-bit version would be nice too

EDIT: I tried it on my desktop on default settings (maximum memory allocation) and my computer almost crashed, 100% memory usage, SSD paging like a crazy and the screen flashed black (because DWM crashed)
I will try lowering the memory setting
EDIT2: Now I get Memory locking failed (might be reserved by other apps/kernel)

W1zzard · Apr 20, 2017

Derek12 said:
Very good
But a 32-bit version would be nice too

EDIT: I run it on my desktop and my computer almost crashed, 100% memory usage, SSD paging like a crazy and the screen flashed black (because DWM crashed)

32-bit version isn't possible because it wouldn't be able to allocate enough memory for testing. Everybody uses 64-bit nowadays.

"Maximum" might slow down your system indeed, you did get the message about your system "appearing hung", right ? Windows 10 or Windows 7?

Derek12 · Apr 20, 2017

W1zzard said:
32-bit version isn't possibly because it wouldn't be able to allocate enough memory for testing. Everybody uses 64-bit nowadays.

"Maximum" might slow down your system indeed, you did get the message about your system "appearing hung", right ? Windows 10 or Windows 7?

Windows 10.
There are currently lots of 32-bit systems out there (including my recently acquired 2-in-1) but yes, this tool is more focused to enthusiasts who have 64-bit systems
I didn't get any message but yes, the desktop started to lag badly and the screen turned black for a while, then memtest closed, and a event about DWM crashing appeared

I finally get it running by allocating 8 GB and after a few tries with the locking error. That means the rest of the RAM (4 GB) is not being tested right?

Module 0:
DDR3, 8192 MB, 64-bit, 1333 MHz
DIMM_A1 BANK 0 Kingston 99U5471-057.A00LF
Module 1:
DDR3, 4096 MB, 64-bit, 1333 MHz
DIMM_B1 BANK 2 Kingston 99U5474-016.A00LF

0.000: Detecting usable memory (12232 MB theoretical max)...
12.125: 11648 MB Test starting on 4 CPUs...
12.141: Allocating memory...
20.656: Starting loop 1
20.672: Stuck Address Test...
26.625: Random Data Test...
32.687: Move Data Test...
35.094: Bitpattern Test...
59.656: Test finished with no errors detected
0.000: Detecting usable memory (12232 MB theoretical max)...
2.703: Test finished with no errors detected
0.000: 8192 MB Test starting on 4 CPUs...
0.015: Allocating memory...
3.265: Memory locking failed (might be reserved by other apps/kernel)
3.640: Test finished with no errors detected
0.000: 8192 MB Test starting on 4 CPUs...
0.000: Allocating memory...
7.391: Memory locking failed (might be reserved by other apps/kernel)
7.906: Test finished with no errors detected
0.000: 8192 MB Test starting on 4 CPUs...
0.000: Allocating memory...
6.547: Memory locking failed (might be reserved by other apps/kernel)
7.094: Test finished with no errors detected
0.000: 8192 MB Test starting on 4 CPUs...
0.000: Allocating memory...
7.000: Starting loop 1
7.000: Stuck Address Test...
11.078: Random Data Test...
15.219: Move Data Test...
16.672: Bitpattern Test...
140.953: Starting loop 2
140.953: Stuck Address Test...
144.984: Random Data Test...
149.078: Move Data Test...
150.531: Bitpattern Test...
274.766: Starting loop 3
274.766: Stuck Address Test...
278.875: Random Data Test...
285.094: Move Data Test...
286.547: Bitpattern Test...
410.609: Starting loop 4
410.609: Stuck Address Test...
414.734: Random Data Test...
418.844: Move Data Test...
420.312: Bitpattern Test...
453.641: Test finished with no errors detected

W1zzard · Apr 20, 2017

Derek12 said:
That means the rest of the RAM (4 GB) is not being tested right?

It is not a linear allocation. The allocated 8 GB are not contiguous and tested memory pages can be located in any ram stick in your system.

The 11648 MB test is the one that crashed DWM? What if you select the next smaller test size?

Fx · Apr 20, 2017

W1zzard said:
Yupyup

I am very excited about this announcement and will definitely put this into my USB toolkit at work.

Thank you so much.

Rosie Scenario · Apr 20, 2017

Derek12 said:
Very good
A 32-bit version would be nice too

EDIT: I tried it on my desktop on default settings (maximum memory allocation) and my computer almost crashed, 100% memory usage, SSD paging like a crazy and the screen flashed black (because DWM crashed)
I will try lowering the memory setting
EDIT2: Now I get Memory locking failed (might be reserved by other apps/kernel)

Turn off secure boot.

Solaris17 · Apr 20, 2017

Memory locking failed (might be reserved by other apps/kernel)

I got this but just waited a second and tried again and it was fine.

R-T-B · Apr 20, 2017

Octopuss said:
Looks like complicated software. Do you code stuff for living then? I don't suppose TPU can generate enough money to live off?

He pays me too, as well as other more productive members of society.

Rosie Scenario said:
Turn off secure boot.

Doubt that has anything to do with this.

human_error · Apr 20, 2017

Awesome - thanks W1zzard!

W1zzard · Apr 20, 2017

Rosie Scenario said:
Turn off secure boot.

I don't think Secure boot has any effect.

The locking error happens when you ask it to test more memory than Windows thinks it can free up for testing.

Aenra · Apr 20, 2017

I already have a purchased hci-memtest deluxe (that's the non memtest86+ version, the one running from windows), so will be comparing the two.

I asked it in the original thread, but received no reply, so let me try here again

Do number of cores have any bearing on the test process or results thereof? For example hci advises a minimum of 16 tests running parallel for me (one per core), RAM equally divided between them.

Derek12 · Apr 20, 2017

Rosie Scenario said:
Turn off secure boot.

I have it turn off

W1zzard said:
It is not a linear allocation. The allocated 8 GB are not contiguous and tested memory pages can be located in any ram stick in your system.

The 11648 MB test is the one that crashed DWM? What if you select the next smaller test size?

Many thanks

Yes, it is when DWM crashed! anyway seemed to happen only once
The next smaller size (11264) worked fine

XiGMAKiD · Apr 20, 2017

Ooh a new toy, can't wait to try it

Thanks W1zz

W1zzard · Apr 20, 2017

Aenra said:
Do number of cores have any bearing on the test process or results thereof?

it's just faster afaik

theGryphon · Apr 20, 2017

Awesome program! :clap:

Frick said:
That right there is about the only legit reason to stay on Windows 7.

What is it that Win 7 task manager can do and Win 10 version cannot?
I mean, OK, you can't view the CPU and memory graphs at the same page... is that it?

xkm1948 · Apr 21, 2017

Good tool. Here are some of my suggestions.

1. Only used ~30GB RAM for my 128GB RAM. I hoped it can test close to the limit at least.
2. Reports RAM speed at 2933 while they run at 3000
3. Can't run with Windows task manager open

Processor	Threadripper 1950X
Motherboard	ASRock X399 Professional Gaming
Cooling	IceGiant ProSiphon Elite
Memory	48GB DDR4 2934MHz
Video Card(s)	MSI GTX 1080
Storage	4TB Crucial P3 Plus NVMe, 1TB Samsung 980 NVMe, 1TB Inland NVMe, 2TB Western Digital HDD
Display(s)	2x 4K60
Power Supply	Cooler Master Silent Pro M (1000W)
Mouse	Corsair Ironclaw Wireless
Keyboard	Corsair K70 MK.2
VR HMD	HTC Vive Pro
Software	Windows 10, QubesOS

System Name	Dumbass
Processor	AMD Ryzen 7800X3D
Motherboard	ASUS TUF gaming B650
Cooling	Artic Liquid Freezer 2 - 420mm
Memory	G.Skill Sniper 32gb DDR5 6000
Video Card(s)	GreenTeam 4070 ti super 16gb
Storage	Samsung EVO 500gb & 1Tb, 2tb HDD, 500gb WD Black
Display(s)	1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case	Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s)	onboard (realtek?) - SPKRS:Logitech Z623 200w 2.1
Power Supply	Corsair HX1000i
Mouse	Steeseries Esports Wireless
Keyboard	Corsair K100
Software	windows 10 H
Benchmark Scores	https://i.imgur.com/aoz3vWY.jpg?2

Processor	6600K
Motherboard	Z170-A
Cooling	U14-S
Memory	Vengence DDR4-3000
Video Card(s)	Asus Dual 1060 O6G
Storage	Multple SSD
Display(s)	Asus VS 24"
Power Supply	XTR550
Mouse	G502
Software	Mint 18.1
Benchmark Scores	2nd VR Mark in class.

Processor	Ryzen 7 5700X
Memory	48 GB
Video Card(s)	RTX 4080
Storage	2x HDD RAID 1, 3x M.2 NVMe
Display(s)	30" 2560x1600 + 19" 1280x1024
Software	Windows 10 64-bit

Processor	AMD Ryzen 5 5600@80W
Motherboard	MSI B550 Tomahawk
Cooling	ZALMAN CNPS9X OPTIMA
Memory	2*8GB PATRIOT PVS416G400C9K@3733MT_C16
Video Card(s)	Sapphire Radeon RX 6750 XT Pulse 12GB
Storage	Sandisk SSD 128GB, Kingston A2000 NVMe 1TB, Samsung F1 1TB, WD Black 10TB
Display(s)	AOC 27G2U/BK IPS 144Hz
Case	SHARKOON M25-W 7.1 BLACK
Audio Device(s)	Realtek 7.1 onboard
Power Supply	Seasonic Core GC 500W
Mouse	Sharkoon SHARK Force Black
Keyboard	Trust GXT280
Software	Win 7 Ultimate 64bit/Win 10 pro 64bit/Manjaro Linux

TechPowerUp Announces MemTest64 - Test Memory from Within Windows

OSdevr

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ERazer

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Big Member

Derek12

W1zzard

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Derek12

W1zzard

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Fx

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R-T-B

human_error

W1zzard

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Aenra

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xkm1948

Processor	R9 5950x
Motherboard	Asus x570 Crosshair VIII Formula
Cooling	EK 360mm AIO D-RGB
Memory	G.Skill Trident Z Neo 2x16gb (CL16@3800MHz)
Video Card(s)	PNY GeForce RTX 3090 24GB
Storage	Samsung 970 EVO Plus 1TB NVMe \| Intel 660p 2TB NVMe
Display(s)	Acer Predator XB323QK 4K 144Hz
Case	Corsair 5000D Airflow
Audio Device(s)	Objective2 Amp/DAC \| GoXLR \| AKG K612PRO \| Beyerdynamic DT880\| Rode Pod Mic
Power Supply	Corsair AX 850w
Mouse	Razer DeathAdder Elite V2
Keyboard	Corsair K95 Platinum RGB "Cherry MX Brown"
VR HMD	Oculus Rift
Software	Window 11 Pro

System Name	RogueOne
Processor	Xeon W9-3495x
Motherboard	ASUS w790E Sage SE
Cooling	SilverStone XE360-4677
Memory	128gb Gskill Zeta R5 DDR5 RDIMMs
Video Card(s)	MSI SUPRIM Liquid X 4090
Storage	1x 2TB WD SN850X \| 2x 8TB GAMMIX S70
Display(s)	49" Philips Evnia OLED (49M2C8900)
Case	Thermaltake Core P3 Pro Snow
Audio Device(s)	Moondrop S8's on schitt Gunnr
Power Supply	Seasonic Prime TX-1600
Mouse	Lamzu Atlantis mini (White)
Keyboard	Monsgeek M3 Lavender, Moondrop Luna lights
VR HMD	Quest 3
Software	Windows 11 Pro Workstation
Benchmark Scores	I dont have time for that.

System Name	TheMailbox 5.0 / The Mailbox 4.5
Processor	RYZEN 1700X / Intel i7 2600k @ 4.2GHz
Motherboard	Fatal1ty X370 Gaming K4 / Gigabyte Z77X-UP5 TH Intel LGA 1155
Cooling	MasterLiquid PRO 280 / Scythe Katana 4
Memory	ADATA RGB 16GB DDR4 2666 16-16-16-39 / G.SKILL Sniper Series 16GB DDR3 1866: 9-9-9-24
Video Card(s)	MSI 1080 "Duke" with 8Gb of RAM. Boost Clock 1847 MHz / ASUS 780ti
Storage	256Gb M4 SSD / 128Gb Agelity 4 SSD , 500Gb WD (7200)
Display(s)	LG 29" Class 21:9 UltraWide® IPS LED Monitor 2560 x 1080 / Dell 27"
Case	Cooler Master MASTERBOX 5t / Cooler Master 922 HAF
Audio Device(s)	Realtek ALC1220 Audio Codec / SupremeFX X-Fi with Bose Companion 2 speakers.
Power Supply	Seasonic FOCUS Plus Series SSR-750PX 750W Platinum / SeaSonic X Series X650 Gold
Mouse	SteelSeries Sensei (RAW) / Logitech G5
Keyboard	Razer BlackWidow / Logitech (Unknown)
Software	Windows 10 Pro (64-bit)
Benchmark Scores	Benching is for bitches.

System Name	Custom Built
Processor	AMD Ryzen 5 3600
Motherboard	Asus PRIME A520M-A
Cooling	Stock heatsink/fan
Memory	16GB 2x8GB Corsair Vengeance LPX 2400MHz
Video Card(s)	MSI 1050Ti 4GB
Storage	KINGSTON SNVS250G 256GB M.2 + 2 data disks
Display(s)	Dell S2421NX
Case	Aerocool CS103
Audio Device(s)	Realtek
Power Supply	Seasonic M12II-520 EVO
Mouse	Logitech MX Master 2S
Keyboard	Logitech
Software	Windows 11 Pro 64-bit

Processor	Ryzen 2600x
Motherboard	ASUS ROG Strix X470-F Gaming
Cooling	Noctua
Memory	G.SKILL Flare X Series 16GB DDR4 3466
Video Card(s)	EVGA 980ti FTW
Storage	(OS)Samsung 950 Pro (512GB), (Data) WD Reds
Display(s)	24" Dell UltraSharp U2412M
Case	Fractal Design Define R5
Audio Device(s)	Sennheiser GAME ONE
Power Supply	EVGA SuperNOVA 650 P2
Mouse	Mionix Castor
Keyboard	Deck Hassium Pro
Software	Windows 10 Pro x64

System Name	Pioneer
Processor	Ryzen R9 9950X
Motherboard	GIGABYTE Aorus Elite X670 AX
Cooling	Noctua NH-D15 + A whole lotta Sunon and Corsair Maglev blower fans...
Memory	64GB (4x 16GB) G.Skill Flare X5 @ DDR5-6000 CL30
Video Card(s)	XFX RX 7900 XTX Speedster Merc 310
Storage	Intel 905p Optane 960GB boot, +2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs
Display(s)	55" LG 55" B9 OLED 4K Display
Case	Thermaltake Core X31
Audio Device(s)	TOSLINK->Schiit Modi MB->Asgard 2 DAC Amp->AKG Pro K712 Headphones or HDMI->B9 OLED
Power Supply	FSP Hydro Ti Pro 850W
Mouse	Logitech G305 Lightspeed Wireless
Keyboard	WASD Code v3 with Cherry Green keyswitches + PBT DS keycaps
Software	Gentoo Linux x64 / Windows 11 Enterprise IoT 2024

Processor	Intel Core i9 9900k @ 5.1GHZ all core load (8c 16t)
Motherboard	MSI MEG Z390 ACE
Cooling	Corsair H100i v2 240mm
Memory	32GB Corsair 3200mhz C16 (2x16GB)
Video Card(s)	Powercolor RX 6900 XT Red Devil Ultimate (XTXH) @ 2.6ghz core, 2.1ghz mem
Storage	256GB WD Black NVME drive, 4TB across various SSDs/NVMEs, 4TB HDD
Display(s)	Asus 32" PG32QUX (4k 144hz mini-LED backlit IPS with freesync & gsync & 1400 nit HDR)
Case	Corsair 760T
Power Supply	Corsair HX850i
Mouse	Logitech G502 Lightspeed on powerplay mousemat
Keyboard	Logitech G910
VR HMD	Wireless Vive Pro & Valve knuckles
Software	Windows 10 Pro

System Name	ACME Singularity Unit
Processor	Coal-dual 9000
Motherboard	Oak Plank
Cooling	4 Snow Yetis huffing and puffing in parallel
Memory	Hasty Indian (I/O: 3 smoke signals per minute)
Video Card(s)	Bob Ross AI module
Storage	Stone Tablet 2.0
Display(s)	Where are my glasses?
Case	Hand sewn bull hide
Audio Device(s)	On demand tribe singing
Power Supply	Spin-o-Wheel-matic
Mouse	Hamster original
Keyboard	Chisel 1.9a (upgraded for Stone Tablet 2.0 compatibility)
Software	It's all hard down here

System Name	Skypas
Processor	Intel Core i7-6700
Motherboard	Asus H170 Pro Gaming
Cooling	Cooler Master Hyper 212X Turbo
Memory	Corsair Vengeance LPX 16GB
Video Card(s)	MSI GTX 1060 Gaming X 6GB
Storage	Corsair Neutron GTX 120GB + WD Blue 1TB
Display(s)	LG 22EA63V
Case	Corsair Carbide 400Q
Power Supply	Seasonic SS-460FL2 w/ Deepcool XFan 120
Mouse	Logitech B100
Keyboard	Corsair Vengeance K70
Software	Windows 10 Pro (to be replaced by 2025)

System Name	3950X Workstation
Processor	AMD Ryzen 9 3950X
Motherboard	ASUS Crosshair VIII Impact
Cooling	Cryorig C1 with Noctua NF-A12x15
Memory	G.Skill F4-3600C16D-32GTZNC
Video Card(s)	ASUS GTX 1650 LP OC
Storage	2 x Corsair MP510 1920GB M.2 SSD
Case	Realan E-i7
Power Supply	G-Unique 400W
Software	Win 10 Pro
Benchmark Scores	https://smallformfactor.net/forum/threads/the-saga-of-the-little-gem-continues.12877/

System Name	Virtual Reality / Bioinformatics
Processor	Undead CPU
Motherboard	Undead TUF X99
Cooling	Noctua NH-D15
Memory	GSkill 128GB DDR4-3000
Video Card(s)	EVGA RTX 3090 FTW3 Ultra
Storage	Samsung 960 Pro 1TB + 860 EVO 2TB + WD Black 5TB
Display(s)	32'' 4K Dell
Case	Fractal Design R5
Audio Device(s)	BOSE 2.0
Power Supply	Seasonic 850watt
Mouse	Logitech Master MX
Keyboard	Corsair K70 Cherry MX Blue
VR HMD	HTC Vive + Oculus Quest 2
Software	Windows 10 P