MSI Z77A G45 boot loop

Hi everyone!
I just tried to flash my MSI Z77A G45 today from the bios version 2.1 to 2.A.
I had blackscreens all the time when i tried to flash it with the M-FLASH utility from my bios.
Then everything just started normaly (after each blackscreen), but there wasn't any update, i tried to force the update with LiveUpdate.
And now when i try to start the computer, i just get a blackscreen (no signal for the monitor) and a boot loop.
It just stops and reboot after 10s.
My hardware is working perfectly, i think this is from a corrupted bios issue.
Which things i tried:
- Doing a clear CMOS (nothing happens)
- Removing the CMOS battery for 10 minutes (the reboot loop stopped, but there was not any display, i restarted the PC then and the reboot loop started again)
- Cleaning my PC (from dust and things like that), it was not efficient at all
- Booting from a USB key with the bios in, and formated as FAT32, nothing happens too. It doesn't recognize the USB key and anything else (keypad etc.) so the blackscreen was there again.
My Hardware:
CPU: Intel Core i5 3570 3.4 Ghz
Motherboard: MSI Z77A G45
GPU: None (Intel graphics 4000)
RAM: 2x4Gb Corsair Vengeance
HDD: Crucial M4 SSD 64Gb
Power supply: Corsair 850W
Do you think that i need to send my mother board back to the RMA?
I hope you will be able to help me, or find a solution
Thanks in advance

You can try the steps found here https://forum-en.msi.com/index.php?topic=119375.0
Otherwise, it is RMA time.
Next time use the forum flash tool and archives found on the forums.

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>>Posting Guide<< please list all the components in your system!
Motherboard?
CPU?
RAM?
GPU (if you have a dedicated graphics card)?
PSU (Power Supply Unit - please list the +12v rail/s amperage rating/s on its data sheet)?
what you have described is usually either a Bad Motherboard or a Inadequate/overstressed PSU! so the components list of what you used to build the system is Very important to determine what exactly has gone wrong.

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Hi,
I have read all issues about boot loop problems, but nothing fit mine.
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Hello again,
I have change CPU and MB for the new ones, but problem still occurs. I found an information on the web, that i5 3570k supports only RAM with power consumption max 1.5V. I have Zeppelin DDR3 4GB kit (2x2GB) 1600Mhz, but when I clear the CMOS and boot, the MB says that I have only 1333Mhz. That means the RAMS has more then 1.5V?
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Today when I tried to turn on my 2 year old computer, the computer just went into a boot loop, meaning it boots on for 7-8 seconds, shuts off, and starts booting again. Nothing shows on the screen.
I've searched around, and it seems like a fairly common problem, but I have not been able to fix it.
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* CMOS reset
* Switching the RAM sticks around
* Removing my GPUs
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Cheers

i'm assuming you don't get no boot drive message. regardless, make certain you verify your boot drive is correct> mine resets at times and does that more or less. you can try any other boot drive to see whether that is the problem. ie try to boot from a dvd first to make sure your not totally in trouble. if you another machine ghost present boot drive to other drive and see whats up. actually you can just slap the boot drive into any other machine or use a sata to usb adapter and make sure you can read it. they do fail at times. i forget the key for msi boards for boot setup but f1 will get u there i believe. ps u have ssd too so thats likely it if u had a power outage recently.
good luck m8

Re: MSI Z77A-GD65 Boot loop

ok then if you have tried other memory then its either the CPU (its not impossible and i have seen 5-6 dead CPU's recently) or Motherboard that has failed and both are possible! (unless you can test one of the 2 you have to blindly either get a RMA on ...

Quote from: Svet on Yesterday at 15:28:15you already using UEFI compatible vbios TV303MH.132
hi Svet, thanks for the reply.
I don't have experience in flashing vBios of v...

Msi z77a-g45 - BIOS not saving loop

Hi there, I picked up a msi z77a-g45 and an i5 3750k, 4x4GB Kingston RAM, etc etc.
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I've now gone through it quite a few times, and it always re-prompts me to go into the BIOS again or F2 to use defaults.
Doing the F2 deal will get me into Windows, but upon reboot I get the error again and have to F2 again just to boot.
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Quote from: Psych on 26-July-12, 03:43:47
Hi there, I picked up a msi z77a-g45 and an i5 3750k, 4x4GB Kingston RAM, etc etc.
I'm an experienced system builder, but this is my first build in i5 land, or actually on an MSI board. The issue I've got is when I first booted, it shows the "CPU or memory changed !!" and to press F1 for setup or F2 to load defaults and continue. Cool, expected on first boot. I enter setup, get the BIOS how I want it, save and reboot, it immediately shuts my box off and 2 seconds later, back on. All good so far.
But it again prompts the "CPU or memory changed !!" warning. Err...it showed my CPU properly in the BIOS, same with memory.
I've now gone through it quite a few times, and it always re-prompts me to go into the BIOS again or F2 to use defaults.
Doing the F2 deal will get me into Windows, but upon reboot I get the error again and have to F2 again just to boot.
I've tried using Click BIOS to make changes, it however doesn't show any memory in here (updated to latest Click BIOS version), but does show my CPU fine. Shows 0GB.
I've also updated my BIOS to release 25 this morning, no change.
Anyone else have this happen at all? I suppose my next steps will be to drop to a single stick of memory, see if that goes, or do a full 'remove battery' cmos clear. I've tried pushing the clear button on back of mobo but didn't seem to do anything.
Would really appreciate any ideas, thanks all!
Read my "thread" : https://forum-en.msi.com/index.php?topic=160606.0

MSI z77a-G45 Infinite Reboot Loop

Hello,
Here are my system specs:
Core i5 3570K
Hyper212 Plus
Intel 330 180 GB SSD (with OS on it)
WD 1TB Black (for data)
MSI z77a-G45 motherboard
G.Skill Ripjaws 8 GB RAM
EVGA GTX 660 FTW Signature 2
Corsair TX650m PSU
Lite-on iHAS124-04 Optical DVD Drive
Corsair 200R case
I should mention the following up front: I don't know what is causing my problem, but my guess is it's either PSU or motherboard.
Nothing in my system is overclocked (except for the fact that my GTX 660 card comes factory OC'd). Here is my issue. Yesterday, I shut down my computer and everything was normal. I didn't change anything at all. Today in the evening, I tried to power on my computer, and it simply goes into an infinite reboot loop. I don't see anything on the monitor, nothing comes up. The computer powers on for about 10 seconds, and then powers off for about 5-6 seconds, and it keeps repeating this process. Actually getting this process to stop is a bit tricky (I think I have to hold down the power button for several seconds when the computer is off). Does anyone have any ideas? I've tried a few things, like checking to make sure the 8 pin and 24 pin cables are tight. I've tried resetting CMOS and taking out the CMOS battery. Ideas? Thank you.

Hi guys. I know this thread is 2 and a half months old but I need to find a solution to this problem. It may have been better to start a new thread, excuse me for not doing it as my problem is quite similar.
Well, my situation is a bit different and I will explain it shortly but first I'll give you my PC specs.
MSI Z77A-G45
Intel i5-3570
Corsair DDR3 8GB (2x4)Kit 1600MHz Vengeance
Nvidia GeForce 9800GT
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Any ideas? This is really frustrating.

MSI Z77A-G45 and Samsung 840 Series weirdness

Ok so here's the thing
about a week ago i decided that it was time to build a new computer with a Z77A-G45 motherboard
put it together, installed windows 7 64-bit and everything was working just fine - for about 5 days -
but then one morning when i turned on my computer it decided not to boot and just sat there with fans running with an A2 code at the bottom left of the screen
i tried taking out the ram leaving just 1 in and moving it to different slots and trying a different ram block boots thinking it might be faulty ram,
when that didn't work i tried removing the graphics card and boot with just the onboard VGA, reset the CMOS jumper, and even replaced that battery on the motherboard thinking the shop might have shipped an almost dead one, took everything apart and booted it outside the case on a glass surface to make sure it wasn't some sort of short
but the only time it actually wanted to get past the A2 code was when i booted with only 1 of my hard drives, so i started changing my drives around using various combinations of SATA cables and ports (luckily had an extra 5 SATA cables lying around)
eventually i narrowed it down to it wanting to boot with 2 of my 3 drives but the 3rd one (a Samsung 840 series 500 GB SSD, that has no system files or anything fancy other then music, movies and a few games at the moment) getting it stuck on the A2 code
so i set it up as an external USB drive with a SATA/USB converter i had sitting around but then it would get stuck on B4 instead if i booted with the drive connected
however everything would work just fine if i connected the drive after the system had booted up (or even just unplugging and replugging it when it got stuck on the B4)
once back in windows with the drive connected i ran all the diagnostics i could think of but nothing showed anything wrong with it
(and the only thing i had done with the drive before it stopped wanting to boot was to defrag it)
eventually i decided to copy all the files from the drive to a different drive and reformat it as sort of a hail-mary
and to my surprise that actually made it boot up just fine
so i moved it back inside the case as a normal drive just to make sure it would still work (which it did) and then moved all the files back to see if any of them were the culprit - that turned out not to be the case however
it booted up without complaint with all the original files on it
so now my question is why?
what the heck is going on?
did defragging cause some sort of data fault that caused the bios to not be able to read the drive properly or did i just buy a haunted computer?
like i said everything is back in the state it was the day before it didn't want to boot and bios and been defaulted so it's not really an issue at the moment but I'd still like to know what's going on so i can hopefully avoid it in the future
any answers or comments will be appreciated
for your reference a full parts list:
Motherboard: MSI Z77A-G45
Bios Version: 2.10
Graphics card: Club3D GeForce GTX 550ti 2GB
PSU: Corsair TX 950W - 100-240V ~ 12A 50/60Hz
CPU: Intel Core i7 3770K / 3.5 GHz Processor (Stock boxed fan)
RAM: Corsair Vengeance - 32 GB (4 x 8 GB) - DIMM 240-pin - DDR3 - 1600 MHz ( PC3-12800 )
HDD: OCZ-Vertex2 128GB SSD (OS)
Hitachi HDS722020ALA330 2TB HDD (Media/Backup)
Samsung 840 Series 500GB SSD (Media/Backup)
OS: Windows 7 64bit Ultimate

This is strange
I have Z77A-G43, and have exactly the same problem with one 1GB sata drive, that works just fine in every other PC.
In my case PC run into restart loop, but with same code A2 as yours.
Strangest part was PC was restarting even if I put HDD into PCI Sata/Raid card !?
So I am guessing here its not a hardware problem, but a software (BIOS) problem.
Now whole pc with Z77A-G43 is at Service because of faulty DVI output (not working).
Will try reformating drive, but need first to buy >1gb hdd to backup that one
Drive is currently working just fine in this 10y old MSI PC =.=
It seams they have stopped making things as they used to, this old mb is one durrable dog.
which was the main reason I went to same company when in question was mb...

MSI Z77A - G45 - CPU multiplier problem

Hi,
I recently bought this PC:
Intel Core i5 3570 k
MSI Z77A - G45 - with BIOS V 2.5
Seasonic S12II-620 620W
Corsair Vengeance Low Profile White 8GB (2x4GB) DDR3 1600
Amd HD 7850
My problem is following:
If I change CPU Ratio (multiplier), in standart mode to 40x and leave CPU core voltage auto, it cause instability, even if use Cpu core voltage 1.25 V for ratio 40x.
But that's not all problem. I could understand, why I cant OC my CPU, but this instability is even if I change multiplier to 30x from default 34x and this makes me uncertain.
Now I will describe you that instability...
OK so, when I change ratio to 40x or 30x it doesn't matter, it runs to windows successfully but after using windows something about 3-6 hours pc turns off.
I also discovered second problem by coincidence. If I hit F11 (Boot menu) , when I am starting pc and I have set ratio 40x or 30x, I can choose what I want to boot only for 10 secs and after that PC restarts by itself....
But if I set default 34x ratio I can choose what I want to boot forever and pc doesnt restart.
I know that boot menu is not some test of stability but it is very strange... Why If I change multiplier, it doesnt matter, if it is higher or lower then default settings it just cause instability ? :-/
Thanks for help.

Quote from: xmad on 19-August-12, 07:02:15
I was just saying that the beta caused a vga problem, latest release the f11 problem so try the release prior to that, but if you got it working don't touch it! lol
Are you still using the beta bios?
No clue, we are just users like you are, just keep checking the website. You should report the troubles you had with 2.4 to msi too.>>How to contact MSI.<<
Yeah iťs working now. As I said, I wanted flash older Bios 2.4, so for sure I click on restore defualts in bios (for sure before flashing) in that 2.64 Bios version...
PC restarts and my graphic card started working =)...
So now I am running on that the latest Bios as you refered mi (2.64 beta).
I am running some test of stability on @ 4 GHz with 1.070 V (IBT,Prime,memmaxx,linx,cinebench,occt,super pi, 3d mark) temps are 62 C max...
So I guess it's ok now =)
At the end I have one question :
My Cpu is now running on 40 x ratio all the time, there is no some underoverlocking ratio (16x etc.) when it's in idle. I was thinking the Ivy Bridge overclocking is overclocking of turbo only...
I know It's detail, because I have good temps even in idle with 40x ration (33-39 C) but i want to be assured if it is ok.
EDIT:
And btw I didnť have 2.4 bios flash on, I wanted put them on... But before flashing my 2.64 beta started working right with HD 7850 as is wrote upper.
I had Bios 2.5 before 2.64

MSI Z77A-G45 RAID Issue

Greetings...
Just got a new MSI MoBo and wanted to RAID1 my two WD Caviar Black HDDs. However, everytime I enable RAID and reboot it goes to a black screen with two "Z"s randomly placed in the middle. Once I get to the "black screen", it will only boot to that screen afterwards and needs a CMOS reset to fix. I have tried everything I can think of, but always get the same results. I have successfully installed Windows 7 on one of the drives with AHCI mode enabled, and have also had IDE mode work fine... but as soon as I enable RAID - black screen.
Everything else on the board seems to be fine. Anyone have any ideas?
SYSTEM:
MSI Z77A-G45 mobo
Intel i5-3570 CPU
Coolermaster Hyper 212+ EVO
8GB Crucial DDR3-1600
EVGA 560Ti 448 Core Classified (Primary)
XFX 260GTX XXX Ed. (Physx)
2 x WD Caviar Black Dual-Proc HDDs
LG DVD Super-Multi Burner
Silverstone Decathalon 850W PSU
Windows 7 Home Premium 64-bit

FIXED - Ended up reflashing the BIOS, which restored the RAID utility. BTW, my G15 keyboard would not register the CTRL-I to get into the utility... I had to use a PS/2 keyboard, which required a CMOS reset in order to recognize. Just posting this in case anyone else runs into this.

Msi z77a-g45

Hello,
I got a new build with a msi z77a-g45, Intel core i5 3570k and 8GB corsair 1666 DDR3 and a MSI 560GTX TI
this is not my first build so i went for it.
after i put it al together it did boot up and just kept running without giving me any form of beeps and my screen stayed black.
i went to troubleshoot some things and it all didn't help. after an hour i found out that when i push down on the (stock) cooler on the right corner it would boot up ( the phase leds all turn up) and when i let it go it just shuts down immediately. same goes for when i push down on the right corner of my gpu it would boot and when i let go it shuts down. i dont know what this is. i replaced the cpu for another one and this didn't help either. i also went for another cooler ( scythe mugen 3 ) still the same problem. i now fixed it with some tie wraps to pull it all down and it starts. do you guys have any idea what this is? i obviously want this fixed and I'm not sure if this is a rma problem or not. i also tried it out of the case ( on the desk ) to put down only the motherboard, CPU and gpu.
thanks in advance,
Wessel van Waas

You have a damaged CPU socket, and the board should be RMA'd.

MSI Z77A G45 not detecting Sapphire HD 7950 , only integrated graphic works

First of all - sorry for my poor english,
I've build my setup today.
MSI Z77A G45
i5 3570k with Macho Hr 02
Sapphire HD 7950 Vapor-X
2x4 GB Corsair Low Profile 1600
XFX Core 550W
The problem is MOBO is not dectecting my HD7950 Sapphire when connect to HD7950 HDMI out (using SONY Bravia as display) It works only with integrated graphic on MOBO hdmi out. I've installed Win7 64-bit. System boots fine but only on i5 graphic.
I'm using nearest CPU PCIe port. Unfortunately can't try plug HD7950 in with other PCIe port, Radeon won't fit in case I own (Fractal Core 3000 usb 3.0)
BIOS version 2.9
Need your help

Has the VGA been tested in another machine to verify it works? Do you have access to other VGA's you can test in the primary graphics PCI-E 16X33 slot? If nothing works, then it can be a troubleshooting extravaganza! First recommendation would be to test outside the case on a plain piece of cardboard or untreated wood surface, barebones configuration. Inspect the case for any errant standoffs that may be shorting/grounding the PCI-E slot. The primary graphics PCI-E slot not working can also be caused by a pin problem in the CPU socket. A bright light and magnifier will be needed for socket pin inspection.

(msi z77a-g45 motherboard) A disk read error occurring

For the msi z77a-g45 Motherboard
I'm getting the "a disk read error occurred press ctrl+alt+del to restart" error when booting in my new build.
I have recently switched out my 4gb stick of g.skill ripjaws ram for 4x2 gb sticks of 1333mhz ram. I have not done anything besides this and i just started getting this error. I tried each ram stick individually and they boot but i get the error. I tried the 2 and 4 dims and still get the error. I tried re-seating the sata and data cables to my optical drive and hd.
The only thing i can think of is that i was installing a windows update just before i left to go change the ram so if that could be an issue please let me know.
Thanks.

>>Posting Guide<<

MSI Z77A-G45 Crossfire

I am planning to buy the MSI Z77A-G45 motherboard. Only i see the manual say:
Quote
Slots
■ 2x PCIe 3.0 x16 slots
- PCI_E1 supports up to PCIe 3.0 x16 speed - PCI_E3 supports up to PCIe 3.0 x8 speed
■ 2x PCIe 2.0 x1 slots
Can you tell me if this motherboard does fully support 16 lanes on both cards in Crossfire?

No, it can't. It will switch to X8/X8 if using Crossfire. Due to technical limitation Z77 can't go X16/X16

MSI Z77A-G45 SLI

Hi, guys. Can somebody say to me. Does SLI realy works on my mainbord MSI Z77A-G45? On the my mainboard I saw "SLI ready", on the official site MSI I saw SLI ready too. But in the Basic Specifications on the site MSI I don't see "SLI". Please help me to find truth!

Even the product site lists SLI also in Basic Specifications (http://www.msi.com/product/mb/Z77A-G45.html#/?div=Basic) as it says "SLI - Y" and Y means Yes.
Overview also lists SLI: http://www.msi.com/product/mb/Z77A-G45.html#/?div=Overview
So yes, Z77A-G45 supports SLI in a X8/X8 configuration using the Gen3 slots.

MSI Z77A G45 boot loop

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