Z68A-GD65 Hangs in UEFI Help wanted

Hi there! im new to this forum.
I just bought myself an Z68A-GD65, and first thing i noticed was the bios revision was really old, so i updated to the latest version.
Now i wanted to try some overclocking, i went into bios and upped the multiplier and the voltage, pressed save and exit and UEFI froze, however, the temperatures were still monitoring and updating on the side?? but i couldnt do anything. Had to shut down PC on the button.
I went into UEFI again after reset and i see the changes did not apply, so i load defaults, press save and exit, and UEFI froze again, now i cannot save and exit at all.
What should i do? reflash ? something is obviously wrong....
Help plz
EDIT: It seems the problem was the new N7 bios, i flashed to the older N4 and now it works just fine.
The motheboard came with N2.

Quote from: HU16E on 01-May-12, 19:16:09
What does the DRAM V. 'Read Only' voltage read? Might try to set it manually to 1.521v and see if that helps. To really be of help, a full listing of all your systems components will be helpful in troubleshooting. It would also make it a bit easier if the settings you have are listed too. The sub section 'CPU Features' has some settings that can cause problems if not set right as well as in the Eco Section. EuP 2013 should be disabled for example.
I always changed the DRAM Voltage to 1.652 volts, and set the speed with XMP (1600mhz).
My system specs:
Intel i5 2500k
8gb Kingston HyperX 1600mhz CL9 1.65v
MSI Z68A-GD65 (now flashed to the latest bios again)
Nvidia Geforce GTX 470
Corsair VX550W powersupply.
Creative X-FI xtreme gamer soundcard.
D-link DWA-556 xtreme wireless network card.
Razer Naga molten edition mouse.
Logitech Ultra X flat keyboard.
I am trying to troubleshoot this problem now, step by step, im changing 1 thing in UEFI, save and exit, booting into windows, rebooting and changing 1 thing again.
Its gonna take some time, but hopefully i can find whats causing the UEFI freeze.
Here is the steps i took immidietly before:
1. Changed the boot order to SSD first, enabled hot swap on sata port1(recommended by MSI according to the site), rest disabled.
2. Changed to AHCI
3. Disabled onboard LAN and External SATA 6gb/s
4. Changed to XMP and manually set DRAM voltage to 1.652v.
5. Saved and exited.
6. Went into windows, rebooted, changed 1 random setting (didnt matter what) and UEFI freeze upon pressing "Save and Exit"
Clear CMOS > Solved problem, i now can change the settings again, until i find whatever is it from that list that is causing the UEFI to freeze.
Question: what is Eco mode and standard mode? im always changing the settings in Standard mode.
EDIT: The problem seems to be related to the "Advanced Settings" section in the UEFI, which includes the settings : to disabling the onboard LAN + external sata 6gb/s and changing the boot order and enabling hot swap.
The problem is in other words related to the onboard lan disable, external sata 6gb/s, changing boot order or enabling hot swap on sata port1. So i left those 4 things at default and it appears its working now since i have now rebooted and saved & exited bios many times since i decided to narrow this problem down.
I have now successfully done the following to help out with the OC:
Disabled: EIST, Speedstep, Turbo boost, EuP2013, C-state, Overspeed protection, C1E Support, Power technology, Spread Sectrum.
Enabled: Internal PLL Overvolt and XMP profile.
Manually: Set memory voltage to 1.652v, CPU voltage to 1.325v (doin OCCT linpack right now, seems stable so far)
Using BCLK: 100.2 (10010 in bios) to compensate up from 99.8mhz.
Will get back soon.
EDIT2: BSOD after 50mins OCCT at 4.5ghz 1.325v, backed off the BCLK increase from 100.2 to default 99.8, and upped volts to 1.330v, if its stable, im backing off volts to 1.325 again and running again.
Also tried to disable onboard LAN, disable serial port, UEFI still functions properly. It seems the problem is caused by enabling Hot Swap.
Question: what should i put PLL volt on?

Similar Messages

SPLIT: Z68A-GD65 (G3) Hitachi 3TB - Windows 7 64 - Help

Topic split from: https://forum-en.msi.com/index.php?topic=153163.0
Quote from: BrendaEM on 22-October-11, 15:00:03
I got it working : )
The new BIOS/UFEI worked.
The Windows 7 64 disk defragmenter did not work well until I updated Windows.
Some installers still warn of a lack of hard disk space, but the system seems to be working well.
I use Linux too, and this system makes it a PITA, but I am sure it was supposed to. Now I use a separate drive to boot Linux.
The system still seems fragile and hacked together--especially how Windows deals with large drives.
I'm having a very similar issue. I'm installing win 7 64-bit from a usb drive on a raid 5 setup that's 5+TB and I can't get the partition to stay GPT.
updated BIOS to 22.8 (http://www.msi.com/product/mb/Z68A-GD65--B3-.html#/?div=BIOS)
In the BIOS i set the "UEFI boot drive BBS Priorities" to "UEFI: FAT file System" as the first boot device. I can't set the UEFI as the first option under "boot option priorities"
installed raid drivers (Version 10.5.0.1027) during windows install
I've pressed shift+f10 at this same screen, "diskpart">"select disk 0" (my 5TB partition)>"convert gpt"
when I click drive options and format I don't get the proper ESP and MSR partitions created (like I see here http://www.sevenforums.com/tutorials/186875-uefi-unified-extensible-firmware-interface-install-windows-7-a.html)
if i install windows without clicking format, the drive gets formated as ntfs
I know this is a bit old, but if you can provide any help that would be GREATLY appreciated. I have been struggling w/ this for way too many hours. For something they put on the box you'd think it'd be easier to accomplish.

Quote from: Stu on 08-April-12, 21:40:07
Topic split, please don't hijack old topics even if your problem seems similar.
From the link you provided:
thanks for moving to the correct place, didn't mean to hijack.
when I attempt to install on the gpt partition i get "windows cannot be installed to this disk. the selected disk is of the gpt partition style"
Is there a bios config i have set wrong?

Z68a gd65 g3, i2600k help please

Trying to iron out bugs, I have bounced between throttling, or mem errors reported from IBT or Memtest.
Cured mem errors from memtest (was failing test 3 and 5) with a dram voltage bump.
Cant seem to get this stable for IBT, and it should be cakewalk, assuming nothing is fried.
Pwr Supply : XFX Black Edition 850w
MB : Z68A GD65 G3
CPU : i2600k
RAM : 2 x 4GB Corsair CMZ8GX3M2A1600C8 (8-8-8-24-2T stuff)
CPU HSF : Venomous X, 2 x 108cfm fans in push pull
GFX Cards : 2 x evga gtx 470 w/Vantec hsf on both cards (have not begun to mess with gfx oc this build)
Goals : 4ghz 24/7 stable lowest temps possible under load, HT on, and go from there.
Considering in a HAF 922, and CPU HSF is decent, I had expected eventually to get to 4.4 and stay under 65c, somewhere around 1.3 vcore tops. I cant even get 4g stable. I have read some other threads here and tried settings, but not getting there on my own. Please help meh

I had not tried the auto oc yet, I will give it a try.
I have been experimenting with the 2 newer bios files posted on msi site, not quite getting there.
How is the auto oc feature with respect to voltages, and will it allow turbo/speedstep to function ?
Just got done setting up for a family member, with a 2500k, on a <competitor> <<-self censor z68 board, using c9 gskill and a downdraft style cpu fan.
No trouble at all to get it running @ 4ghz, full load using 1.21vcore, and it stays 55-57 w one oddball core hitting 61.
Of course, big differences are 999 vs 888 ram, 2 2gb sticks vs my 2 4gb, and I have HT. I did have to set manual vcore "fixed 1.22" on that setup, since it would run fine on "auto" voltage for cpu, but that board gave it ludicrous vcore on auto, well over 1.35, and of course allowing vdroop meant too low.
For oc genie, do you refer to button on mb, or the bios tab ? I have not messed with either. As long as temps are ok and voltages are not crazy on the auto oc, 4.2 would do nicely for the time being, until i can find more info. I would like to make sure all is well and stable, before I try popping in SSD I have sitting here. I do not want to go through trouble of fresh install, etc, just to realize im borked anyhow due to not understanding the sandybridge, or some quirk of bios/ram/etc etc.
Thanks for the quick reply! Ill try it out, and keep reading what I find here
edit: i have not yet tried relaxing ram timings or running it at 1333, could that be the issue ? Id rather keep 888, than 1600 mhz, if i had to choose
edit #2 - Specifics on what I think is "wrong" : 1) Prime 95 Blend - CPUZ shows consistent 40x multi, Prime 95 Inplace large FFT (max power heat test) shows throttling down as far as 35x, never seen any system do that to me. 2) No errors in memtest but IBT crashes on 3rd run, set at 8 threads, custom 2560mb test
Just realized I did not completely clean off remnants of previous manufacturers MB (also z68, but doa ram channel A), I could see that causing instability, but not throttling. Still I feel like a tool for not wiping the OS partition and going clean, so ill be doing that immediately. Please in the mean time, toss me the tips, or a link to the "read this ya nub" thread :P.

Overclock core i5 2500K with MSI Z68A-GD65 B3 [Help]

Hello
I have updated the bios of my motherboard Z68A-GD65 B3 with the lastest version
the OC menu has new options and my OC don't go above 4.2Ghz
there are some screenshot
Spread Spectrum=Disable
CPU PLL Voltage=1.65
Execute Disable bit=Enable
Intel virtualization tech=Enable
Power technology= Energy Efficient
C1E support= enable
Overspeed protection=disable
core ratios=45
what would you recomend me set in Long duration power, maintained, short duration etc?
because the OC only goes to 4.2Ghz.

Quote from: Sea Dog on 06-August-14, 05:18:10
With the CPU Core Ratios in CPU Features back to Auto or their default, set the Adjust CPU Ratio to 43X at first just to test it for POST completion, OS loading and stability. Turbo and Enhanced Turbo could be set to disabled. Internal PLL to enabled. Try VDroop in Auto or it's other available setting. CPU PLL to 1.82v's - 1.84v's, EuP 2013, Spread Spectrum, and Overspeed Protection keep disabled. Reset the CPU Features power and duration limits back up to the previous settings as discussed.
As you said, there is a problem with the BIOS version. I tried to overclock with CPU Ratio method, unsatisfactorily. setting the CPU Ratio at 40 the system fail.
I recently tried with OC Genie Button, but the Frecuency doesn't go above 3.7Ghz, but the CPU Ratio Limit is set in 42.
you can see the picture.

Raid mode very slow/ crashing after installing driver (Z68A-GD65 (G3))

I recently purchased a Z68A-GD65 (G3) motherboard, i5-2500K, 8 gb ram, and a Crucial 64GB 4m SSD drive. The intention was to use the SSD drive for Intel Smart Response Tech.
Instructions tell me to place the SATA ports in RAID mode, which I did. During installation of Windows 7 (64-bit), I provided the "F6" raid drivers which installed. After that point, my hard drive (a WD 250GB SATAII drive) begins to perform incredibly slow. Once Windows 7 installs, which takes way longer than it should, Windows has problems booting and won't work properly.
I tried installing Windows 7 without the "F6" raid drive on install and that worked fine. Everything seemed to be working great. I then installed the Intel Rapid Storage Tech software and rebooted. Now my system is acting up again. It takes far longer to boot, it shuts down as soon as it boots, and it has even blue screened on boot. It is very unstable.
My SSD is unplugged during all of this. I'm just trying to get Windows 7 to run properly on my one mechanical drive in raid mode.
Do I have a bad motherboard? Anyone have any ideas?
Edit: I'm not using the Marvell ports. The hard drive works fine in IDE/ACHI modes... I've been using it for years.
Thanks

So it turned out that the issue was the hard drive itself. It had been running flawlessly for years as my system drive. However, the Intel iastor driver exposed a hidden issue with the drive.
I decided to check the Windows system event log for any clues. In there I saw errors with event id 9 on iastor. They were lined up with the times of the hangs and blue screens. Solutions I found online for this issue did not help. Luckily I have two hard drives in my system, although they are both the same model. I moved my data around and clean installed Windows on the other drive instead. The hangs and blue screens are no longer occurring.

Z68a-gd65 (G3) + 280x = no signal

I bought this new gpu XFX Radeon R9 280X 3GB Double Edition (R9-280X-TDFD) and when i plug it and power on my pc the fans start running and all led's is on but there is no signal output to my monitor.
I have tried changeing pcie-slot and i have made sure several times that its pluged in correctly and i have also tried different cables (dvi, dp and hdmi).
I've found severel others with the same problem by using google and its seem like most of them was helped by updating bios on their motherboard, which in my case is MSI Z68A-GD65 (G3). But i have also tried this but its still not working. (v. 25.8 from msi webpage)
At this point I decided too try it out using an other computer with a new 4970k I7 from intel and a newer motherboard and it worked instantly and fine. But when i connect it in my pc again : NO SIGNAL.
Does anyone know what the problem is? Do i need an other version of bios?
I've also seen others with this problem that solved it by a simple bios update + switching from UEFI to LEGACY on the GPU (but my graphiccard does not have that switch).
Please help me! My 26 year old hair is turning gray.

Quote from: Chike on 26-February-15, 23:37:29
Is there no signal on the build in graphic either?
Im not totally sure of what you're asking me. But.. All that happens is that the monitor signals No signal and bios wont load. I know this cause when i push the start button on my chassi the computer instantly turns off
Quote from: Svet on 26-February-15, 23:39:04
ask XFX if they can provide you with legacy vbios for your card
I have started a support ticket on XFX's webpage but i havent yet got any replies. I will update it asking for Legacy Vbios aswell.
Somewhat off topic but what is this legacy vbios. How does it compare too the "uefi" kind. Is it a far more simple bios?

Strange Z68A-GD65 G3 Problem

Hi first post,
Having recently purchased the Z68A-GD65 G3 motherboard,i have encountered a srange issue.
When i have my Xbox 360 controller connected i cannot enter the bios,but when it is disconnected it loads fine.
Can anyone find a solution?

I have the Z68A-GD55 G3 and was experiencing the same issue where Windows would not boot with the XBOX controller. It would post but then stop with a black screen with a UEFI code of 92 in the lower right hand corner of the monitor.
I upgraded to the 23.5 BIOS and then downloaded a Windows update for the controller and the issue went away.
Hope this helps.

Does the mobo support Z68A-GD65 (B3) was removed?

Does the mobo support Z68A-GD65 (B3) was removed?. Currently not find BIOS updates and Virtu does not work with the Core i5 3570K.

Well, that is highly irregular! One day it's not found on the Websites, and now it is. That was not on the Global site yesterday, because I looked. And a (G3) UEFI/BIOS at that.
You are mostly on your own on this one. The 'key' or 'certification' has obviously been removed from hardware/firmware or whatever it is on the board that handles that aspect. How you get it back depends on what you decide to do. If it is that important to you, the mainboard may have to be restored to it's former glory of Sandy only UEFI/BIOS's. Use the link in one of my previous replies and contact MSI Technical about all this. They are the only ones that can help you possibly get the Virtu problem resolved. What have you really gained using an Ivy CPU on a Z68 (B3)? Good luck!

MSI Z87 GD65 - Hangs on black screen with 9C at bottom right

Pretty much what the title says, 'MSI Z87 GD65 - Hangs on black screen with 9C at bottom right'. Does anyone have any idea why it does this? It hangs for a while before eventually continuing with the start-up, this is most frustrating when I have an SSD and want a quick start-up. I have already looked it up in the manual to no luck. Help?

9C last for me like 1 to 3s, depending on the amount of USB devices attached. If I have only USB printer, keyboard, and mouse attached, it shows for roughly less than 1.5s.

Problem of combination of Z68A-GD65 G3 and GV-R795WF3-3GD

Hi, MSI guys.
My environment.
CPU : Sandybridge i5-2500K
MB : Z68A-GD65 G3
Mem : AX3U1600GC4G9-2G
VGA : GIGABYTE GV-R795WF3-3GD Radeon HD 7950 3GB
PSU : Seasonic SS-600HM +12V(18A)x4 max.576W
ATNG? KRPW-G530W/90+ +12V(41A)x1 max.492W
Issue
VGA is not output to the monitor.
It is output properly in Sandy core GPU.
Problem is similar to this topic.
https://forum-en.msi.com/index.php?topic=167494
In the BIOS of version 25.8.
It is not possible to set CPU voltage, DRAM voltage, Adjusted CPU Ratio and etc...
Setting the CPU Phase Control are missing.
I've done
I tried all PCIe slots.
I tried with a DVI and HDMI connection cable.
BIOS updated from 23.2(Intel ME7) to 25.8(Intel ME8).
But, it did not work well.
So, I tried to change back to old version BIOS(23.7 or 25.6).
using the MSI HQ USB BIOS Flash Tool, was executed in mode 1.
However, BIOS was not changed.
Please give me advice.

A downgrade requires a special archive. None the less you don't have the same problem as the original poster as the new bios helped there. Try the vga in another system to see if it works at all.
If wanting to downgrade to 23.7 you must use the attached and NOT unpacked archive.
For BIOS Update >>Use the MSI HQ Forum USB flasher<< => Mode 1: Point to archive file!
*NOTE: Make sure you unplug your PSU from A/C power and properly >>Clear CMOS Guide<< after flashing.

MOVED: Z68A-GD65 (B3) and Asus r9 280x

This topic has been moved to Intel Core-iX boards.
https://forum-en.msi.com/index.php?topic=174418.0

Quote from: say0n on 07-November-13, 04:19:18
I just got an ASUS R9280X-DC2T-3GD5 but i doesn't give me any signal in my monitor. Im using the DVI port and the Motherboard is Z68A-GD65 (B3)
Im running an old HD6870 with no issues but in the moment o switch the cards it doesn't give me any image and there's no POST.
i5 2500k at 4.3ghz
Z68A-GD65 (B3)
The card was already tested with the seller and it works fine so is not the card... please help i don't want to spend more money to change my platform to 1150 socket.
I bet the seller didn't test the card in a PCI-E 2.0 "environment".
Z68, i5-2500K are PCI-E 2.0 (HD6870 is PCI-E 2.1)
AMD Radeon R9 280X is PCI-E 3.0
Many AMD PCI-E 3.0 graphic cards have backward compatibility issues.
That's why I always recommend Nvidia cards for older motherboards and processors.
If your motherboard BIOS is up to date, the next thing to try is to update the VBIOS
(ask the seller if you cannot do it by yourself).
If that doesn't fix the problem, you have 2 options:
- replace the card with a Nvidia one
- keep the card, but replace the processor with a Gen3 one (3770K, 3570K, etc)

Z68A-GD65-G3 SLI black screen lock ups

Let me start off by saying I have tried everything and I motivate everyone to prove me wrong and provide me with a solution to this issue.
System spex:
MSI z68A GD65 G3
2600k
Corsair XMS3 1600 16GB
Corsair AX1200
2 - EVGA GTX 580 3GB SLI
Running beta bios: E7681IMS.N49 from -> https://forum-en.msi.com/index.php?topic=151148.msg1144560#msg1144560
I have tried almost every BIOS under the sun, including "standard bios" ie flash back to factory BIOS
So here is the issue:
In order to run SLi I have to be at completely stock settings, if I even up the multiplier to x35 on my CPU I black screen as soon as I bench/game on the cards. If I bench only the CPU (prime95) it is fine and no issues. but again as soon as I loud up something graphics wise the screen goes black and locks up.
It isn't the cards either, each card has been tested on its own and in different PCs in SLi.
It is like the motherboard cant handle the power??????
Someone else has to be overclocking and running two power house cards like this without issues? right? what did they do different? what settings? am I missing something?
Or do I need to contact MSI and get a RMA in process.
Before adding the extra card I had my CPU @ 4.7Ghz and when I would bench it I would take it to 5Ghz+ without a issue... solid, never had a BSOD. but this extra card just kills the systems.
Again everything set to stock and the system runs great I can game on it for hours without issues.
Thanks
Nick

Quote from: Bernhard on 30-December-11, 00:22:38
I am not running your PSU down, don't get me wrong. You have the best PSU by general consensus. All I am suggesting is to check it in another system under similar OC conditions with approx the same specs.
It does fine with SLI non OC, yet when you add the extra load of OC, and that can be an additonal 50 to 100W, then the PC becomes problematic.
It could be something else, but one has to start eliminating potential culprits.
Edit: Did you install Virtu ? If so, have you tried deleting it again for a test ?
Oh I understand completely and thank you for your suggestion and time, it helps me to believe that it could be my PSU even more, I am borrowing a PSU from a friend and a PSU tester from work and tonight will get a chance to do some full testing on the PSU.
If that tests out ok I will pull my PSU out and RMA it. hopefully Corsair will have a quick turn around.
Virtu isn't installed, I will double check but it was disabled in BIOS, but i have reset my BIOS so many times I will make sure it still is.
I will report back with my findings.

Z68A-GD65 (G3) issues.

I'll start with my build,
Z68A-GD65 Gen 3
i5 2500k under Noctura NH-D14
16GB G.Skill DDR3 1333 CL9 1.5V
MSI R6950 Twin Frozr II 2GB
Crucial M4 128GB SSD (in 1st intel sata 3 port)
Antec HCP 850w
Bios 23.3 (or whatever, I'm on phone at work)
A few issues;
I can't OC. If I try an oc, it boots, I get splash screen for msi, then hangs with blinking underscore. Even if I match oc genie setting for setting in standard mode. Using auto etc, set v core way high (like 1.4 for a mild 4.2 oc) it just seems to hang. I'm guessing something to do with the sata 3 controller, since I'm booting off ssd
Last night I started PC, went to bathroom, came back and it was loop booting. I hard powered it off, and restarted. OC failed, and that was oc genie at 4.2.
PC won't wake up from sleep. Have to hard power off (hold power button down) then restart and it resumes windows. Mouse and two diff keyboards won't wake it (performance mx mouse, g510 keyboard, and ps2 dell keyboard.)
G510 won't enter bios, have to use dell ps2 keyboard.
If in OC genie, or trying oc in standard mode, system double posts. Starts, runs 4-5sec (no display), powers down, starts back up and runs fine for hours (except the one oc fail on genie)
Any ideas on any of it?

No, thats the last official release. There has been a host of beta BIOS releases since. I just flashed to the latest .N48 today and I must say, I am very happy with the stability I now have.
If you intend to flash, use the forum flasher. >>Use the MSI HQ Forum USB flasher<<
Do a full CMOS clear after flashing >>Clear CMOS Guide<<
Also you will need to ensure that you set your BIOS back to AHCI, if you did that before installing the OS.
I further suggest you remove all RAM except one stick in the slot closest to the CPU before the BIOS flash. Only put the other RAM back after you have been through one boot cycle.

Z68A-GD65 (G3) Memory problems after BIOS update

Good day, i'm russian, so sorry for my english.
Friend of mine had MSi Z68A-GD65 (G3), i5-2500K, memory pair 2*2GB with bios 22.8 (latest version with no red letters about ME8 and IvyBridge).
He decided to upgrade the processor to IvyBrydge and updated bios with new ME8. Then the computer went into a state of continue restarting every 3 seconds. After replacing the CPU to the new Ivy - computer works good, the impression is that the computer does not understand Sandy now and switched toIvy. But it has seen only one of memory pair. My friend just bought a new motherboard. Now he has no problems. I took his MB and SandyBridge CPU.
Flashing the bios to the old version by M-Flash - it does not see the BIOS file, although it is there (in the root, FAT, 2G). Flashed it under dos with AFUDE238 with a key -x, it said about mismatched ROM ID. After the old BIOS flashing (with an Ivy) computer went three-second reset mode. CPU changed to Sandy i5-2500K - now works good. By the way, now M-Flash see the firmware on a flash drive - I flashed it again from the M-Flash, just in case, reset the settings.
What is the problem: if I set the memory into the slot 3 or 4, the computer goes into a three-second reboot, it does not matter is the memory in the first two slots or no. If this memory is inserted in the first two slots - all ok. So I work now - in the first two slots with no dual-channel mode.
The feeling is that the problem appeared after first flashing to Ivy and remained after flashing back to Sandy.
Question 1: What to do to get working the memory slots?
Question 2: Is BIOS 22.8 - the latest which I will have with Sandy? (There is a problem now when the computer starts - 1 times out of 10 will not boot - reset is helping, and the BIOS at starting not very fast).
There are posts about people with the same MB and the CPU and the new BIOS (25.2) that supports Ivy. I'm confused. It means I can use the new firmware from SandyBridge. But there are many posts about problems with new firmware. Where is the true?
Just checked BIOS version - P.1 (25.1) 2012-04-16 - by the way with Ivy support. But I flashed with 22.8, I'm sure. ME version in BIOS isn't shown, but while booting - ME 7.0
What does it mean? Can it be repaired? What should I do?

Thanks to all. My system is working fine now.
What it was. I flashed BIOS with tool from this forum. Bios flashed good, but problem still was here. Then I flashed to the first bios version from support site. And again flashed ok but memory still not working in slots 3 and 4. Then I decided to flash back to last flash with Sandy support 22.8 (or 23.8). Then I flashed to the last bios at all - 25.4. Flashed it from dos - this was pretty long. It rebooted 3 times (ME updated too). I still don't know - what it was with first flashing to Ivy. Now it's ok.
So I decided the problem is bent pin. With magniglass and needle I've found some uncertain pins (these were not BENT, but slightly bent) and touched these with my needle. And that was the answer. Now all works fine. Thank you all.
On the russian msi forum no one answered and helped me at all.

Z68A-GD65 (G3) fails to boot with new Gigabyte Radeon HD 7950 OC

Hi,
I have a problem with my new Gigabyte AMD Radeon HD 7950 (GV-R795WF3-3GD):
My system fails to boot with this GPU, with the old Radeon HD 4850 everything works fine.
Here are my system specs:
MSI Z68A-GD65 (G3)
CPU: Intel Core i5-2500K
RAM: 8Gb DDR3-RAM (Corsair)
power supply: be quiet! Pure Power L7 530W
What I have already tried to fix the problem:
-CMOS Reset
-other PCI-e slot
-other power supply (old 750W)
Nothing worked.
Do I need a Bios update? My current version is V23.7, but I'm not sure whether I can use the latest versions because my CPU is a SandyBridge...

We can't help you woth your vga as it is no MSI product. You can try latest bios for your board (http://www.msi.com/product/mb/Z68A-GD65--G3-.html#/?div=BIOS) because the latest bios versions for G3 boards are working well with Sandy and Ivy. If latest bios should not help and you like to downgrade the bios we can give you the needed files if you ask here.

Z68A-GD65 Hangs in UEFI *Help wanted*

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