MSI Z77A-G43 DRAM underclocking

hello guys, for some reason my DRAM on my MSI Z77A-G43 board underclocks itself.
i went into my bios and set it to run at 1600 mHz but when i use CPU-Z to check my actual DRAM speed it is only at 800 mHz.
so here is my questions, how does this happen and how can i fix it?
link for my current settings:

if not already done, update your bios to the latest.
then after that, go to bios, disable x.m.p., set (relating ram) everything auto, but select 1600 mhz for your ram, and then remember to LINK the timings if u have 2 or more ram sticks, now set the timings, 9-9-9-20 (or 22, or 24), and u should be fine.
x.m.p. is crap, 1) it feeds too much voltage 2) it sets the worst timings.

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Z77A-G43 - DRAM banks 1&2 acting up.

Hey, guys. Thanks in advance for your time. I know it gets busy around here.
I am putting together a new system for the wife, and have an odd little issue. The DRAM banks 1 & 2 cause a pre-POST boot-loop when either are used. Banks 3&4 work perfectly. When a stick is in bank 1 or 2, the computer will power on, the fans spin, no video output, then it shuts itself down (regardless of what banks 3 & 4 hold). Repeats a few seconds later. All the usual trouble shooting has gone down. BIOS is all out-of-box default. All the components are brand new, but regardless were systematically replaced/removed one by one to narrow it down to these 2 ram banks. Needless to say, the RAM is fine - tested in two different computers. The memory banks are clean, new, with no visible dirt or damage. It's just odd.
Code: [Select]
1 2 3 4 <- Bank # ... X = used ... O = empty
X X X X = FAIL
X O O O = FAIL
O X O O = FAIL
X X O O = FAIL
O O X X = OK
O O X O = OK
O O O X = OK
The RAM in use is Kingston HyperX DDR3 1600MHz PC3 12800 4 GB (4 identical sticks = 16gb total) (KHX1600C9D3K2/8GX ). With RAM in memory banks 3 & 4, BIOS tones it down to 1333 from 1600, but that's the least of my worries. BIOS shows the timing as 9/9/9/24 and the voltage around 1.45 (can't remember exactly) even when it's increased to 1.65 (as suggested by the sticky). I also tried going 1 stick at a time but it started acting up as soon as I put anything in bank 3 or 4. There's just a lot of BIOS options that I simply don't know what they do.
I realize you guys have seen a lot of issues and was curious if you wouldn't mind lending a hand? I know my way around a computer, but certainly don't have the specialty knowledge particular to these pieces of hardware that you guys do. Any help is very appreciated. Please let me know if there's any information I can provide. I am dumping anything I think could be remotely relevant in this message. I really hope it's not a faulty board. Between disassembly and shipping, that would be an awful hassle.
Here's what I'm working with:
MSI Z77A-G43 (BIOS v2.2B2)
Kingston HyperX DDR3 1600MHz PC3 12800 4 GB (4 identical sticks = 16gb total) (KHX1600C9D3K2/8GX )
Intel Core i5-2500 3.3ghz
Nvidia GeForce GTX 550 Ti 2gb
PSU: Cooler Master GX 750W (RS750-ACAAE3-US)
A-Data 120 GB SATAIII Sandforce SSD (AS510S3-120GM-C)
Western Digital Caviar Green 2 TB HD (WD20EARX)
Case: Cooler Master HAF 922 (RC-922M-KKN1-GP)
No OS has been installed. I didn't want to get too involved until I knew the hardware was staying put.
Thank you again for your time.

Quote from: Jack on 14-April-12, 13:42:19
I think the potential explanations for your problems are only a few. We can, I think, exclude a memory compatibility problem, since the sticks work fine in other slots.
In my oppinion, what we are looking at is one of the following things:
1. A problem with the memory controller (which is inside the processor) = defective CPU
2. A pin-contact problem between the CPU's contact pads and the board's socket pins causing certain memory slots to be improperly connected to the CPU's memory interface
3. A short-circuit problem, blocking the functionality of the memory slots (test the board outside the case on a non-conducting surface)
4. Defective memory slots or a problem in the underlying circuits = defective board
At your suggestion, I have made a couple of attempts to reseat the CPU (regarding #2). I realize that was a long shot, and not surprised to see no difference. I just wish I had another LGA 1155 CPU to swap out and test #1. I'm going to continue to brainstorm this for a few days before putting in a RMA request.

MSI Z77A-G43 - extreme memory profile problem

Hello everyone,
I’d really appreciate a piece of help here. I’ve bought the MSI motherboard MSI Z77A-G43 and currently I’m having problems with my memory (slots 1 and 3). My PC has following specs:
-   MSI Z77A-G43
-   Intel Core i5 2500K (not overclocked)
-   RAM Patriot 2x4GB DDR3 1600MHz CL9 (PGD38G1600ELK) G2 Series
Everything is set to default values and works fine. But when I enter the BIOS, I see that the memory is automatically set to 1333 MHz. The memory has the XPM. But when I set the XPM (agressive timing, 1600 MHz) support (no other changes) and reboot the PC, it doesn’t work (endless reboot looping). Is there any way how I can make the XPM modus work? The memory is OK (tried on other MBs, XPM without problems), the CPU too. I tried overclocking, with slightly increased voltage I can easily reach 4,8 GHz on CPU, basically everything else is fine. The PSU is also sufficient (700W, OCZ). I can too set the memory on 1600 MHz manually, but the timing isn’t that good.
It’s actually a failure I can live with, but since it’s a brand new PC, I’d like to get the best out of it.
Many thanks
V.K.

Sometimes manually setting them works when XMP refuses to.
I don't know what the XMP SPD profile for that memory is, and a screenshot of your SPD and memory tabs would help.
However try the following.
Disable XMP and reboot so they are back at 1333.
Manually set it to 1600 and ensure manual setting of the timings to 9.9.9.24 see if that works.
If not set your DRAM voltage to 1,575V and see if that works.
It may be that your memory requires 1,65V, in which case, that is what you have to set. You should be able to see that in CPU-Z SPD tab under the XMP profile column.

Black screen at boot MSI Z77A-G43 with HD7850

Hi,
I've tried everything You suggested in this topic. I've upgrade and downgrade bios (official 2.3, 2.4, 2.8, 2,9 / beta 256, 281,296) few times but still is black screen at boot. Now i'm on the newest beta bios 296 and still same issue on Sapphire HD 7850 with my Z77a-G43 board. I know for sure that sapphire working well because I've checked on other mobo with even worst PSU (400W instead 550W Volcano). Before hd 7850 I had gtx460 and swith those few times and always gtx460 works fine, so I don't understand anything right now.
Tried different slots, also clear cmos.
Board: MSI Z77A-G43
Bios: Version 296
VGA: Sapphire HD7850 1GB
PSU: Modecom Volcano 550W
Intel Core i5-3570k
MEM: Kingston 4GB 1600MHz
HDD: 2xSSD
Without OC
OS: Windows 7 64bit Professional
Can You help me somehow, maybe I did not check something else?

Quote from: The CPU Whisperer on 22-April-13, 16:06:05
Do you see the same problem on bios 2.90?
The Z77A-G43 seems the have difficulties accepting HD7xxx AMD VGA cards lately.
It seems that the problem is gone. I thought of it being an ATI driver issue ~ but not even the latest didn't fix it. But since I flashed to BIOS 2.9 I haven't encountered the problem anymore. So I believe something is fixed between 2.3 to 2.9.
However my problem was a bit different that the OP has.
Oh, and I said this on other thread so I say it here too: MSI and Asus 7xxx cards haven't faced the kind of issues Sapphires are having. I'm so glad to my choice... as I almost picked Sapphire but then read comments on Newegg which weren't in favor for Sapphire.

Can i crossfire two radeon 7950's with msi Z77A-G43

Im looking to buy MSI's version of the Radeon 7950 twin Frozr to complete my system but im not sure if i will eventually be able to crossfire two of these cards in the future. I know that this MB only has one PCIe3 slots. Does this matter in crossfire? or will I have to replace the MB in order to corssfire?
MSI Z77A-G43
8gb Corsair Vengence
600 Watt Corsair PSU
Intel Core i5 3770k Oc's at 4.2 ghz
500 gb Western Digital HDD
Cooler Master hyper EVO 212

that should work but at PCI-E REV 2.0 speeds just make sure you have gen 3 support turned off or it will not allow crossfire!

Three beeps when booting new computer with MSI Z77A-G43 Mobo

I just built this pc and pressed the power button. Nothing happens for a few seconds and then I hear 3 beeps from the PC speaker. It powers off by itself and opens again, with 3 beeps again, and repeats this until i press the power button to close it down forcefully.
Board: MSI Z77A-G43
Bios: I am not sure, but the box says Click BIOS II
VGA: MSI 7850 Twin Frozr III
PSU: Corsair Builder 600W 80 PLUS Bronze Certified ATX12V Power Supply
CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor LGA 1155
MEM: Corsair
HDD: 1 TB Western Digital Caviar Black
COOLER: CoolMaster Hyper 212 EVO
OC: none

3 beeps is a memory failure!
try each stick in slot 2 individually as you may possibly have a bad stick?
if the first suggestion doesn't work remove the CPU and check the socket as you may have a bent pin in there causing the issue?

I bought a MSI Z77A-G43 and 1st PCIE(3.0 I guess) slot doesn't work?

I bought a MSI Z77A-G43 and 1st PCIE (3.0 I guess) slot doesn't work? I mean when I put my gf card in it , my screen wont start. BUt when I put it to other blue Pcie (2.0 I guess) it works. What will be the reason? Do I need to do anything in bios ?

I had a similar situation recently.
1.) Check the cpu/ socket for damage
2.) Remove the mobo and make sure there are no extra stand off's under the board.
3.) Check the pci/e slot for obstruciton or debris
Other than that it's probably going to be an rma issue.

MSI Z77A-G43-memory problem

Hello
I bought lately new cpu,mb and memory. When i turned it on it was still rebooting after few seconds after start. So i treid to put just one memory in slot. It worked but only if memory is in bank 3 or 4. In 1,2 computer is still rebooting. Also it works with two memory modules, but putted in 3,4 slots only. And just in single channel. I saw that many people have the same problem and shop service wrote them that it works like that. First You put memory in slots 3,4 and then in 1,2. It is strange for me. I don't have two another memory modules to check if this is true and I want to that it works in dual channel, not single. So, is this true or mb is broken?

Hello. I have the same problem, except, I use 4 Dimms in 4 slots on my MSI board. I installed speaker on MB to see if there are any beep sounds during the booting, but all seems ok. The problem is the PC keeps still rebooting after about 5 sec. from the start. There aren´t any visual information on screen, since the start is so short. I tried to install dimms in 2nd and 4th slot first. Then to 1st and 3rd. In both cases the problem was still the same. When I put all rams in all 4 slots, the result is the same (restart for ethernity). The only way that goes is the PC runs with only 1 dimm in either 1st or 2nd slot. I tested all the memory modules and all of them work fine. I even tried this on a differennt mainboard from ASUS P8Z77-V LX. Now I tested it on MSI Z77A-G43. Both mainboards are new. There is a very slim change that both of them would be defective. Before I got MSI MB, I ran couple of days on the ASUS MB and everything was perfect, so I don´t think that CPU is defective. I even ran a few benchmarks on it. But I still don´t understand why can´t I run the system with all 16 GB of RAM instead of 4 GB in one slot. Please help me.

Msi z77a-g43 bios code b4 black screen

Hi, i have this mainboard update to day with bios 2.12 and this card reader, coolbox cr600v2. Well, the problem is that when i turn on the system i have black screen bios with code b4, any solution?

won't boot with the card reader
Board: MSI Z77A-G43
Bios: Version 2.12
VGA: Asus GTX 780 DCUII
PSU: Corsair hx750
Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W
MEM: CDIMM1: Kingston HyperX KHX1600C9D3/4GX x2
HDD: Crucial M4 256GB
COOLER: Noctua U12P
OS: Windows 7 64bit Professional

MSI Z77A-G43 GAMING LGA 1155 MOTHERBOARD

Does anyone know where I can get one of these in the UK, everywhere I look it says out of stock/discontinued..... I mean everywhere
I have no choice to get a z77 version of the motherboard as im running an i5 3350p ivy bridge which is a 1155 socket.
any help or location of this product would help.... I wish MSI would just sell their stuff too.

Quote from: badboy2k on 07-March-14, 08:49:26
http://www.amazon.co.uk/MSI-Z77A-G43-Motherboard-Pentium-Celeron/dp/B007JRGV14/ref=sr_1_1?ie=UTF8&qid=1394153251&sr=8-1&keywords=Z77A-G43
was easy as just typing it in on amazon enjoy!!!!
Thanks for the reply I did see that one but I was looking for the red and black dragon emblem one, its seem everyone of these I find is somehow discontinued.
prefer the red and black as its goes with the colours scheme I have also matches the 2 msi GPU's I have, just wondered if anyone knows of a UK retailers of this version
As a side note the blue and black doesnt look as impressive XD

MSI Z77A-G43 UEFI Overvolt+Intel Exteme Tuner Overvolt combo

Hey all,
I just wanted to run past you an experiment I did and I think worked.
I currently overclock my i5-3570k with an every day overclock of 4.4 at no offset voltage and a benchmark overclock of 4.7 at +.14V - however my benchmark overclock isnt exactly stable.
I noticed in Exteme Intel Tuning Utility There's a slider there for additional mV turbo voltage. I'm multiplier overclocking for my benchmark overclock with no power saving features and my voltage tops out at around 1.34V but when I add additional mV on Intel Extreme Tuner it goes to 1.38V. It also made me pass my 3dmark at 4.7 which is hit-or-miss but now worked every single time and also passed IBT.
Could this truly be modifying my input voltage on the CPU beyond the motherboard's limited offset mV overclocking?
Is this super dangerous and should I never do it again?
thoughts/opinions
also obligatory 3dmark link
MSI 7950 3gTF+MSI Z77A G43
http://www.3dmark.com/3dm11/5624604

1.400v's on the CPU is the industry recommended limit for an everyday machine, so whatever way it gets there shouldn't make any difference.
Quote
I noticed in Exteme Intel Tuning Utility There's a slider there for additional mV turbo voltage. I'm multiplier overclocking for my benchmark overclock with no power saving features and my voltage tops out at around 1.34V but when I add additional mV on Intel Extreme Tuner it goes to 1.38V. It also made me pass my 3dmark at 4.7 which is hit-or-miss but now worked every single time and also passed IBT.
Could this truly be modifying my input voltage on the CPU beyond the motherboard's limited offset mV overclocking?
If not doing a 'Turbo' OC, I don't see the connection with mV turbo setting. If raising the mV on the Intel utility raises the voltage to the CPU, and it is confirmed, then it must work as you have described.

MSI Z77A-G43 (MS-7758) + MSI 970 4G - PCIE2.0 instead 3.0

Hello,
I got parts descripted in tittle and GPUID and Nvidia panel cant show gtx970 in pcie3.0
Operating system64-bit Windows 8.1 (6.3.9600)
Motherboard MSI Z77A-G43 (MS-7758) - with bios 2.D0 (lastest)
Processor Intel Core i5-2500 Processor 3,3Ghz
MSI GtX970 with Bios NV316MH.182 - Driver version9.18.13.4475
Memory 8192 MB
Module 1 - 4.096 MB Kingston DDR3 @ 667 MHz
Module 2 - 4.096 MB Kingston DDR3 @ 667 MHz
Hard drive model 160 GB INTEL SSDSA2BW160G3H
Hard drive model 256 GB SAMSUNG EVO
Hard drive model - 500GB no SSD
PSU: EVGA B2 750W

Ok, thx for reply. Honestly no idea about that.
Just one question, The difference PCIE3 in a gtx970 is significant in relation to PCIE2 in the same 970?
thank you
i found that
http://www.pugetsystems.com/labs/articles/Impact-of-PCI-E-Speed-on-Gaming-Performance-518/
Oks, you can close this post.

MSI Z77A-G43 and mixed drive types

Hi,
I have an own-built desktop using a MSI Z77A-G43 motherboard. The OS boots from an SSD but all documents, media, etc, are stored on 2x1TB HDDs, configured as RAID.
However, having performed a benchmark on my SSD I'm finding that it's speed is half what it should be. It's connected to the SATA 3 connector on the MB.
I'm wondering if the issue is that, because of the RAID drives, I have the SATA mode as RAID in the BIOS. Is it falling back to IDE for non-RAID drives? Is there a way to force it to use AHCI?
Any thoughts/help on this would be greatly appreciated.
David.

Well, checking you manual will clear up your confusion. SATA 3 is the connector number while SATA III is a terminology for SATA 6GB/s. Some say just SATA 3 meaning SATA III but that's just wrong terminology. The SATA 3 connector and all others but SATA 1 & 2 are 3GB/s (1-22 of the manual by the way)

MSI Z77A-G43 crossfire?

i got a quick 1
can the MSI Z77A-G43 run dual crossfire yes or no?
can't find a soilid answer on the main website saying yes or no but looking at the express slots i think
just don't want to make a mistake.
i'm doing some searching for a clan mate not to well known in pc building.

I have the same question...? Do you mean 'dual' Crossfire as in 4 Videocards.. or 2 Videocards in PCI_E2 & PCI_E4?
The answer is... this board can run 2 cards in Crossfire. In E2 & E4 as explained in the owners manual.
You can not use the other slots for CrossFire.
Tell your Clan Mate..that All are welcome here, and not to think any question is unable to be asked. We were All newbee's at one point in time.. and a lot of us still are not experts. We just like to help and be helped.
Plus if the posting guide is read, it will be learned that going to 'Profile' and listing the PCs equipment will give us better information about the PC, to be able to help better.
Welcome, Good Luck

MSI Z77A-G43 - have Lucid MPV???

I want to buy MSI Z77A-G43 and I have a question:
Have this board support for Lucid MPV??
Thanks

Hi all
Here is a link to Lucid's list of Intel 7-Series motherboards currently supporting Virtu MVP.
http://www.lucidlogix.com/mvp-product-list.html
Hope this helps everyone

MSI Z77A-G43 DRAM underclocking

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