For all features requests or Bug fixes for Memtest86+ (www.memtest.org). NO HELP FOR HARDWARE ISSUE !
Update : Official Memtest86+ USB Installer released
Select Download - Auto-installer for USB Key from this link
Run boot Memtest86+ from USB flash drive
Useful for Notebook they don't have DVD drive to boot.
Backup USB flash drive before run installer
After More than 2 years since 4.20, 5.01 is finally out and the development of Memtest86+ is now fully resumed. Regular updates will follow soon. We still have some issues to solve with embedded menu items and we must add support for IVB-E, HSW-E & BDW.
Tips : F1 will enable fail-safe mode, F2 will enable SMP Mode (disabled by default) and F3 will trigger an hidden alternative SMP Mode.
Memtest86+ V5.01 changelog
- Added support for up to 2 TB of RAM...
To help getting memtest recognising more chipsets i made this thread, so that people could leave a cpu-z dump everytime they found a chipset that memtest wasn't detecting.
Original Thread by Sven Bent.
A simple primer on how to get Memtest86+ to boot from a USB Drive or Hard Drive (without having to install an entire distro or DOS).
note: drive used here is a usb drive located on /dev/sda, so make changes accordingly (eg a hard drive install would use /dev/hdc instead)
First Step - format the drive
optional, only suggested if you're drive needs a good cleaning
(this may take a long time given the size of the drive)
dd if=/dev/zero of=/dev/sda Second Step - create FAT partitions...
Memtest86+ FAQ v1.21
By R.R. van der Vossen (Wichetael)
Latest update 2007-02-28
- What is memtest86+, what do I use it for?
this is my first time using Memtest86 and I have the following questions:
1. If I boot it from a USB drive, I get a message saying that this will erase all data on the selected drive and possibly result in loss of capacity. I don't know what this message means because I have never done this before, and I don't want to take the chance that the USB drive will become unusable and never work properly again.
2. I have Windows 8.1 and I am considering the option of booting from a disk on my disk...
i have errors on same module ddr2,
first motherboard - errors (read spd information -OK)
second motherboard - no errors (can not read spd information)
I am trying to check out a new server:
Supermicro H8QG6F with 64 cores (AMD) and 512GB of RAM (32*16GB). Running 5.01
The board has 4*AMD 6376 processors.
Memtests brings up its blue screen, beeps once, and then prints the SPD info for 8 slots. No tests start, and the keyboard is nonresponsive.
Am I running up against a limit of Memtest+, or is this some sort of hardware error?
I'll probably pull a lot of the RAM and try testing smaller batches.
I came across with this issue yesterday:
0. Start Memtest86+ V5.01 (27/09/2013), with the Auto-installer for USB Key (Win 9x/2k/xp/7)
1. Spam the 'c' key to get into configure menu immediately (tests are 0% complete at this point)
2. Press '1' '1' '0' keys for select tests, default tests, cancel
3. Memtest instantly jumps to test #2 and displays a never ending list of errors.
hi i ran memtest after getting BSOD randomly every now and then.Is 3 errors bad?I have 16GB of ram in 4 sticks and im just wondering if anyone can see from this log what might help find the bad ram quicker as i have limited time to run memtest,otherwise it will take a few days once i have time to do it.
The only error in this log i see is down near the end and it says test 10.should i just put each stick in one at a time and only run test 10 or do you have to run the full thing with 4...
I've tried the 4.2 version on Windows 8. It doesn't even notice Memtest86+. So I changed the order CD first HDD second in the EFI Boot Manager and still Memtest86+ is skipped and Windows 8 carries on to the Desktop.
Only when I resort to "converting" to a virtual CSM to mimic the BIOS Boot Manager can I get Memtest86+ to run.
So my question is how difficult would it be to have Memtest86+ determine for itself what Boot Manager to boot up with? Would make life a little less painful...
Greetings, I wanted to ask what is the reason to get the same error (exactly the same failing address) when I ran the memtest86+ and I have switched every RAM into different DIMM slot. Is it possible for the error to be because of the big amount of memory (256G) ?
I've experienced several problems with memtest86+, in particular booting fails (the PC reboots when selecting memtest.bin during boot using grub 0.97). Looking into the code, I found what I think is a problem concerning stack setup. I attach a patch (that I had to rename as .txt to be able to attach) that fixes the issue for me, and I describe this issue better below.
In setup.S, the stack setup seems really weird to me. Register SP is initialized as DX, but DX has no particular value...
Hi there, I built a new PC 3 weeks ago, and I have been experience weird ass random crashes as well as clock_watchdog_timeout blue screens.
I ran memtest86 today and got the following result:
All these errors happened during the hammer test, I stoped the test because it basically stuck there for about 3 hours.
Should I change my memory sticks?
I have a 32 gb Corsair 2133 mhz kit on a Asus Rampage IV Black edition and I wanted to test it. Turns out that if I run memtest86+ using all the cores, the memory is not detected correctly (frequencywise) and the computer will shut down after a few minutes. If I run it in fail safe mode, everything will run fine and complete a pass without errors. Why could this be happening? Should I be concerned? Thank you
Please can someone tell me how to output/save the test results of memtest86+ version 4.2 and 5.01. Many thanks Edit - I've just seen the sticky so apologies for the question/request doh!
I used Memtest now a few times on my Xeron E5-2620 on a Gigabyte GA-X79S-UP5-Wifi and sometimes Memtest starts with a black interface wich looks more graphical and sometimes in a Blue interface.
It seems like some Bios settings are the reason, which interface starts, but I couldn't figure out, which.
When does it start in which mode and how do you call those two different modes in the Memtest interface?
When I did a test on 3 4GB modules (12GB, DDR3, 1333), the first pass took about 1:45 to finish (using the F2 SMT mode.) The second pass, however, took about 8:15 to finally finish. No errors were found, but this seems like an incredibly long time for a single pass of only 12GB of 1333 RAM. Is this normal?
The vast majority of the time was spent on Test #8. I believe that the rest of the tests took less than an hour, while Test #8 took the rest. On top of this, the percentages counters...
So you ran memtest, found some bad bits, but don't feel like throwing away a 4GB stick? Here's how to tell Windows to ignore those bits.
I'm paraphrasing some of the information from this thread:
First run memtest, and write down the memory addresses that it says are bad. For example, I had a test return that 0x0020B9BF07C was bad.
There is a Bad Memory List feature in windows, but it uses Page numbers instead of absolute addresses. Pages are usually 4096 bytes in size. To turn...
Hello and apologize if this is not the place for my restlessness, I´ve downloaded and installed the software (yes my I can boot from my usb) but when I restart the pc nothing happen, just black screen and a twinkling dash, what is wrong here? Thank you in advance.
Hello. I am testing Corsair CMY16GX3M2A2400C11A memory modules. When I put the modules in the system and set my BIOS to 2400MHz all is well. When i run MEMTEST86+ the memory will show as 2400 at the top but under the SPD info
it shows Slot 0 - 8GB PC3-10600 memory. Why does it show 1333MHz here? Is this normal?
Hi I have created a vhd file for using with PXE boot. If you send this file over PXE booted PC will enter the memtest.
I hope this helps :)
File is created by me based on Memtest 5.01+
Several days ago I downloaded the latest version of memtest (5.01, Pre-Compiled Bootable ISO) to test my memory sticks. Finally, after hours of different kind of testing I caught the fault-prone bit. (screen)
Next, I decided to repeat the test (to do double check). And this time I had wanted to shrink the test, because it needs a lot of time.
Firstly, I tried to set up the lower and the upper limits. As you see, my fault-prone bit has 1A9E66918 address, or 7,145,416,984 in dec. I realised...
I have multiple Intel dual Xeon server boards of the following configuration:
2) Xeon E5-2630 v2
24) 32GB DDR3-1866 LRDIMM
1) Intel S2600GZ4GC dual socket motherboard
All bios, etc at current rev.
On boot of memtest86 the screen turns blue but never completes the load of the screen with memtest86 program data. Just a blank blue screen.
Thanks for your work on this program.
I'm running with an AMD six-core CPU but Memtest86+ shows "1 Active / 1 Total" for cores. Is that a mistake? Shouldn't it show 6?
The first 4GB of my memory is shown as mapped and the rest is not. Isn't that a 32-bit limitation? My CPU is 64-bit and I see "X64 mode".
Suggestions / Comments:
I found the range selection difficult to use.
I am trying to test my ram. I keep getting the same result. I tried each stick in each slot and it keeps stopping at test 10 and at 11 min and 8 seconds. I included screenshot...please help
Before the test starts, it's blank for quite a while, then it says
!!!! X64 Exception Type - 00000..000D
RIP - CAE72F78, CS - 00038, RFLAGS 000010293
System is i2500k - no longer overclocked, 16 GB ram, z68 chipset.
Was working fine for a long time, but now won't boot windows (Stop F4)...
Did I burn my CPU?
Hi all, new to the forum. I have been using memtest for many years and it has been a nice tool to use to exercise memory. I work for a company that develops test equipment and we are trying to find a memory test that would test for the row hammer problem in DDR3. I was wondering if there is a way to use memtest for that purpose. For those of you who are not familiar with row hammer, it is a problem in DDR3 when an area of the memory is hammered by activity and the surrounding memory...
my system is a freshly installed ubuntu 14.04.1LTS on an 3ys old sabertooth990FX/PhenomIIx6 config.
After some unexpected bad crashes I've tested (memtest86+ 4.20) my 16GB (4x4GB ) Corsair DDR3 ram and have found some errors into the upper (remapped) zone: 2x16k pages at base address 0x0410E40000.
Pb is I'm not sure how to handle that in the GRUB_BADRAM variable.
If I follow the base_address/mask infos I found on web, then that should be:
CPU: Intel Ivybridge 3570k 3.4Ghz
RAM: Mushkin 996995 8GB
Firstly am I supposed to force SMT? Memtest86+ seems to think my PC is single core otherwise.
Secondly, after choosing SMT, the test freezes less than two minutes in. The few blinking symbols on-screen keep blinking, but the timer freezes, and the program doesn't respond to keypresses...
In case this is important: I installed MT86+ to USB from my Windows 8.1 computer using the installer.
How can i use memory test 86 plus V5.01 tool by console in dos system?
this is the very first time I used Memtest. For the last couple of weeks, I did get a Bsod every now and then with the "memory managemnt" display message. As it is very annyoing and I have 2x 4GB Corsair modules I though I'd give it a try with Memtest and send Corsair the failury unit.
Now I used Memtest and I have no clue what those numbers mean. I read something about to let it run until you've about 8 passes and wondered if that was even possible for my unit. I let it run for...
Is there any eta on the next version to support the Haswell-E processor? Will the current version of memtest 5.01 support DDR4 memory?
I am trying to use Memtest86+ on an HP xw4600 computer with 4 x 1GB DDR2 memory. With both Memtest86+ v 4.1 and 5.01, the test passes VERY quickly, about once a second. Both times I booted Memtest86+ from USB key.
On the "Memory" line, it shows 604k, suggesting that Memtest only sees this much memory. However, the computer has no problem booting into Windows 7, which obviously needs more than 604k of RAM!
I have successfully run Memtest86+, from the same key, on other...
I just want to do a bootable USB in Linux. I've tried all the methods with the binaru and with the iso. And there is no way.
I found a tutorial in this page but the bootloader is lilo. How can I do to install the latest version of memtest86+ in a usb?
I don't want to use memtest86. Philosofy behing memtest86+ is better
Use this control to limit the display of threads to those newer than the specified time frame.
Allows you to choose the data by which the thread list will be sorted.
Order threads in...
Note: when sorting by date, 'descending order' will show the newest results first.