Z77a-g45 cpu power question

I am having some issues with my 2500k throttling down to 3.3 when the cpu package exceeds 145-150w. My temps are fine and from the testing I have done I believe it might be a motherboard or bios limit. Right now I am running a 4.7 turbo overclock and the voltage is only hitting 1.308-1.312 on average under load and the only things that cause the issue is ibt and aida fpu only stress test. Under full load gaming and benching about the highest I've seen it hit is 110w and have not noticed any lag or slowdown (hwinfo tracking) even in bf3 multiplayer. Pretty much wondering if I have missed a setting somewhere that is limiting the watts or if it is because it's an ivy bridge board with a sandy processor. I have been able to 3d bench all the way up to 5150 but as soon as you start ibt the system powers off, I believe to protect itself from the watts being drawn by the cpu at those speeds.
Thanks in advance

I have settled in on a 4.5 turbo overclock and got it tuned in to where I have no throttle . There really isn't enough performance improvement to run it any higher with this board. I really think I got a nice chip here though so maybe when I can afford it I'll grab a better board. I actually got 4.8 stable with turbo but not worth the temps and voltage needed. Got easier figuring this board out after I knew what the limits were, I really thought it would handle 180w-200w. I'll toss up the bios screens for you in a little while, alot different than what I expected but controls the throttling and makes sure the board doesn't get overheated and throttle. I tossed a fan in on the vrm's to try and keep them cooler too. Running ibt on max might still cause some throttling but I don't think it is worth running on this board because of the power limit.

Similar Messages

Re: Z77A-G45 - No Power

Hi, Have the same problem, but this board was running for over 4 months... I Build it... but now my friend have the same problem.. tried two PSU... no power...no led.. im thinking of this smart no power system they put on this motherboard.. WOW it's working... Not

Quote from: xmad on 30-July-12, 23:09:10
Please don't hijack this thread:>>Please read and comply with the Forum Rules.<<
I will split the topic off for you.
Also: read the Posting guide: >>Posting Guide<<
Can't help you unless we know what all is in your system.
Removed the XFX Radeon HD5750 and used the onboard VGA. Now i can go to bios, but LOOPS at win boot when the flag is shown...
old:
MOTHERBOARD: MSI Z77A-G45 Bios ver. E7752IMS V2.1
CPU: I5-2500 3.3GHz bios temp 31 celcius
MEM: Kingston KVR133303N9/4G 2x4GB slot 1 slot 3 at 1333 Mhz at 1.5 v
COOLER: Frozen X Term
HDD: Maxtor stm3320
PSU: 530 W Hyper Type M
I will try boot in win safemode
Try to flash the bios, if there 's a new
Pray to thor

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

Z77A-G45 - No Power

Hi all.
This is the first MSI board I have owned, so wanted to check I wasn't doing anything stupid before I RMA it back to Scan.
My problem is fairly simple, I can't any power to the board! no matter what power supply I try, I'm not getting any blue CPU phase lights whatsoever. The only things I have plugged in are an 3570k CPU, a stock cooler and one 4GB stock of DDR3 Ram. I have the 24-pin ATX power plugged in securely, and have tried both 4-pin and 8-pin into the other ATX CPU power interface.
I was wondering, what's the bare minimum you need plugged in to these boards in order for them to register power? Should I be getting the blue CPU power lights with just the above components plugged in? Would an incorrect jumper setting cause the power LEDs to not come on?
In theory, if I disconnected everything and just plugged power into the board with no CPU or memory present, it should still register the power LEDs, correct?
Any help appreciated! Really want to get this up and running quickly.

Quote from: xxarixx on 17-November-14, 02:58:14
Same thing happened to me last night. Computer was working fine and It just randomly shuts off. I tried a different PSU and still nada. Ive had this Mobo for honestly 12 months exactly.. (well almost) I got it last black friday. It has always worked great no issues, I have no clue what to do now...
Please open your own thread instead of resurrecting very old one
>>Please read and comply with the Forum Rules.<<

Z87-G45 CPU Power savings options

Greetings,
What Power Savings options does this motherboard has, and where can I find them? I'm looking for stuff such as ERP, C1E and EIST (Enhanced Intel Speedstep Technology).

Quote from: Messerschmitt on 03-March-14, 10:53:02
Greetings,
What Power Savings options does this motherboard has, and where can I find them? I'm looking for stuff such as ERP, C1E and EIST (Enhanced Intel Speedstep Technology).
In bios click OC (overclocking menu) after that scroll to the bottom and click on CPU FEATURES there you have what you ask for. Goodluck

MOVED: MSI Z77A - G45 - CPU multiplier problem

This topic has been moved to Overclocking, Undervolting.
https://forum-en.msi.com/index.php?topic=161026.0

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

Z77A-G45- CPU fan speed problem

Hi all, new to this forum and MSI Motherboards.
i have a problem with my CPU fan speed when i plug any fan and water cooler fan into the CPU 4pin they all run at 2000+ rpm, but when i use the fan 1 or fan 2 --4 pin it runs at a slower speed of 1400rpm, am i missing something in bios, i have 2.5 version of bios, would be greatfull for any help....

Should be able to adjust in the section below or with control center.
Quote
Hardware Monitor
Press <Enter> to enter the sub-menu.
CPU Smart Fan Target
Controls CPU fan speed automatically depending on the current temperature and
to keep it with a specific range. If the current CPU temperature reaches the target
value, the smart fan function will be activated.
SYS Fan1/ Fan2 Control
These items allow users to select how percentage of speed for the SYSFAN1.
CPU/ System Temperature, CPU FAN/ SYS FAN 1/ SYS FAN2 Speed
These items show the current status of all of the monitored hardware devices/ components
such as CPU temperature/ system temperature and the few fans’ speeds.

MSI Z77A-G45 CPU temps video ??

So i did this video with screen caps and wanted to know if this is normal fluctuation on these sorts of things let me know and god bless and have a great day all. fell free to comment here or on the video.

Quote from: Beavise on 09-February-15, 05:02:38
huh my temps are high ?
You said the are at 50s so I said they are high as 63.
Quote from: Beavise on 09-February-15, 05:11:11
one thing to note i just got done running two cpu stress test so the high number is most likely that.
What stress tests were they, and at what multiplier/frequency they run?

Gaming rig wont power up. Z77A-G45 involved.

Hello MSI,
I have a problem with my gaming rig. I recently upgraded to the Z77a mobo, the i5, and the RAM. Now, that upgrade has been working fine for over a month (no CTDs, BSODs or any glitches at all). Performance wise, it had been running BF3 and SWTOR perfectly, both on maximum settings- smooth as butter. Then suddenly 3 days ago it just wont power on.
MOBO: Z77A-G45
CPU: i5 3570K 3.4Ghz (using stock fan, no OC.)
RAM: Corsair CMZ8GX3M2A1600C9 Vengeance 8GB 2X4GB DDR3-1600
PSU: Corsair TX650W
GPU: XFX HD6870
OS: Windows 7
SSD: OCZ Agility 2 (running the OS)
HDD: Seagate Barracuda 7200RPM (x2) (for storage)
At first I thought it was the PSU. Corsair's website has the handy suggestion of powering up the PSU with the Green wire (PS ON#) shorted to any Black (GND) on the +24V ATX Connection. I did so with no load on the PSU and the PSU's fans spin up.
Next, I suspected the tower's power button. so I took an multimeter to it, and the button is working- providing the normal momentary switch action.
Next, I reconnected the PSU into the rig, and again shorted the PS ON# pin to the GND. Now, there's is some partial activity, but the computer still wont boot up normally. The partial activity is as follows:
-cpu fan is spinning
-one blue LED on the mobo's bank of four phase LEDs.
-both HDDs are powered (can feel them spinning)
-GPU fan is spinning.
Now, I wont lie, I'm not sure if shorting the PS ON# pin is sufficient signal to boot the computer, since the signal isn't coming from the power pins of JFP1. But it is worth noting.
So based on that train of thought, I also tried shorting the power pins of JFP1. Sadly nothing happens- no activity whatsoever.
The last piece of information I have is that in the just before all this happened, I was in the BIOS and enabled the Resume from S3 by USB and also the PS2 Mouse/Keyboard settings. Even though I've used those settings before, maybe I eff'ed something up somehow. So I'm planning on resetting the CMOS tonight.
After that, I don't know what else to do other than take the rig into the repair shop- it's got me stumped. Maybe the mobo is dead, or the cpu.
Any thoughts on this crazy problem I'm having? Any help would be greatly appreciated!

Quote from: StaticSilence on 28-July-12, 00:28:12
Thanks for the suggestion Jerry, I'll give that a try too- but it does seem like a longshot though.
It has happend to me, not with usb but with PS2 mice and keyboard. Gamers sometimes prefer to connect the keyboard to the ps2 port as the mechanical ones will accept a higher number of simultaneous keypresses at this port. Mine till accept more simultaneous keypresses than I have fingers!
Also gaming keyboards will often take a LOT of abuse.

Z77A-G45 1 second on then go off

Hi,
I just got my full new gaming Pc, I mount all component and when I press PWR Button, It start CPU fan and then in 1 seconds go Off, APS LED 1 gets on, others don't. I mount only with 1 stick of Ram and no more components, PWR connector and CPU connector, no beeps no stability....
My Components:
MOBO: MSI Z77A-G45
CPU: Intel 3rd Generation Core i5-3570K CPU (4 x 3.40GHz, Ivy Bridge, Socket 1155, 6Mb L3 Cache, Intel Turbo Boost Technology 2.0)
GPU: Asus nVIDIA 3D GeForce GTX 560 TI DirectCu II TOP Graphics Card (1GB)
PSU: Corsair CMPSU-700GUK Gaming Series GS700 High Performance 700W Power Supply
RAM: Corsair CMZ8GX3M2A1600C9 8GB 1600MHz CL9 DDR3 Vengeance Memory Two Module Kit
Any suggestions are
Thanks, and sorry for my bad English
-- First part of the story: https://forum-en.msi.com/index.php?PHPSESSID=i139e7fpasvpmmu2toera68st7&topic=161693.0

Quote from: xmad on 15-September-12, 09:55:59
First, do a full cmos clear, then:
Place the board on a non-conductive surface w/ 1 stick of ram, the cpu, cooler and psu and try to start it like that.
If it fails again, switch the ram and try different dimms.
If no luck, remove the cpu and inspect the socket pins with a bright light and magnifying glass. Look for any bent or even slightly deformed pins.
Alredy did all this things, later today I will post some img, maybe you can see something im doing wrong.
Thanks alot,
Note: it is possible I got a damaged CPU?

Z77A-G45 only integrated graphics boot

Hey all, just upgraded mobo and cpu and so far its only working on the on-board graphics, when i have the monitor connected to a card it wont start boot at all, it comes on, lights and fans whirring but it wont enter the boot screen just stays blank with light on standby, have tried with 2 different cards besides my main and in different pci slots, nada, same thing.
I did have one other problem now fixed but i dont know if relevent to this, when i first turned the newly built comp on and had the above problem i tried the onboard graphics method, it booted but then crashed at windows startup with the x07b error, which after some checking is a hard disk error, i set the sata mode to IDE and it worked, can now go into windows as normal but still only on the onboard graphics.
Any help/advice is appreciated, thanks.
Motherboard: Z77A-G45
CPU: i5-3570k
RAM: Crucial Ballistix BLS2CP4G3D
Graphics card: Gigabyte GeForce GTX 670 Windforce 3X 2048MB (tried a 8800 GTX & something else)
PSU: Enermax Galaxy 850w

Quote from: Froggy Gremlin on 22-March-13, 13:22:29
If you are migrating a HDD from another machine with a previous OS on it, it is not going to work correctly. It needs to be a fresh install. Z77's default to AHCI mode.
thanks for identifying the problem to that little curio, a OS reinstall hmm was trying to avoid that but now I know what the prob is and can tackle it once things are settled.
To get the discrete card to work, change the graphics setting from IGD to PEG, Save and Exit and then hard shut down. Install the discrete card connecting it's PCI-E power, connect the monitor to the discrete card, start the system and see if it now shows graphics.
tried this and alas it hasn't worked, I turn on and go into bios, under advanced section the integrated graphics configuration subsection and the initiate graphic adapter line, I change it from IGD to PEG, click save and exit, while its rebooting I yank out power cable (you said hard shut down), clear power (wait a min and press power button down), install graphics card and connect monitor, reconnect power cable power on and...the same thing.
It was originally actually on PEG so I changed it, saved and let it go into windows to do clean shut down to try your method, did the same thing when it failed first time, have tried a few times now, even tried the method but with changing from PEG to IGD, just in-case of the outside chance the order was a typo on your part.

My new MSI Z77A-G45 Gaming question

Hello MSI forums ,
I'm building a gaming system for my son. The MB i picked was the MSI Z77A-G45 Gaming and it just arrived from newegg. Just a quick question.
The MB arrived w/ out shrink wrap and the MB itself seems to be slightly warped or curved. Is this normal? I purchased a MSI Z77A-GD65 a few months ago for myself and I can't remember if it had shrink-wrap on it or not but I'm sure I didn't see any warping on the GD65.
Anyway, over the last two months I've build two complete systems all from newegg and i haven't had one issue, so good luck for me so far.
thanks!

Not even a security flap or tab seal on any of mine, so no shrink wrap I can recall. Slight curve should pose no problem once it is tightened down in the case.

Control 3 pin cpu fan on Z77A-G45

hi, i have a Z77A-G45 motherboard and a cpu fan with 3 pin only (no 4 pin PWM),
the cpu fan is spinning at a high rpm all the time and no matter if its idle or cpu is extremely hot,
i couldn't get it to change using the bios hardware monitor's "CPU smart fan target",
nor with msi control center on windows.
i believe this is because the motherboard needs to be told to change voltage instead of pwm mode (this solved a similar problem on a gigabyte board),
how do i change the cpu speed from pwm to voltage mode?

Quote
is there a way to somehow "upgrade" my fan to have 4 pin PWM?
Buying a different (PWM) fan...

Z77A-G45 start up-shut down loop with more than 1 stick RAM

New Build, personal use and doing it myself:
BOARD: MSI Z77A-G45
BIOS: *?* click-bios reports "E7752IMS V2.5", but "MS-7752 VER: 1.4" printed on board?
PSU: Thermaltake 850-watt Black Widow 69A 12v rail
CPU: Intel Core i7-3770K BX80667i73770K - Quad Core, 8MB L3 Cache, 3.50GHz, 77W, Unlocked, fan included, no extra cooler yet
MEM: Corsair Vengeance CMZ8GX3M2A1600C9B 2x4GB 1600 MHz, 9-9-9-24, PC3-12800, 1.5V
HDD: WD Blue WD10EALX 1TB, SATA 6Gbs, 7200RPM, 32MB Cache
CASE: Thermaltake VN770M1W2N Overseer RX-I Full Tower
OS: Win7 Pro 64-bit
System bought as bundle including the 2x4GB Corsair RAM. Assembly went well but took me a long time to make sure I had it all right. Then, nothing happened at power-up, no lights or anything. My first reaction was to replace the included Thermaltake power supply (700 watt 52A 12volt rail) - I disconnected all power to the unit and removed the original psu and, on a whim, I booted up with the original power supply outside the case and the lights came on with the psu laying on it's side! Got the start-up and shut-down loop (lights up and spins all fans for a few seconds, then shuts down and repeats ad infinitum), which I was not expecting. Replaced the original power supply with the Black Widow (specs listed above) and got same shut-down loop.
Started checking the memory sticks one at a time in DIMM2, each produced that shut-down loop. Also tried with two sticks of Patriot Viper 3 PVI316G160C9K 2x8GB 1600 MHz, 9-9-9-24, PC3-12800, 1.5V (which doesn't appear on MSI's compatible list...but I had it handy) Then, With the last 8GB Patriot stick in DIMM2, I finally let it go through that shut-down loop 5-6 times out of frustration, and then it suddenly powered up "normally"!
I took advantage and have smoothly installed Win7 Pro, and mobo drivers from CD, no glitches, USB working fine. Then tested each stick - all 4 RAM sticks work individually in DIMM2, but the board will not accept a 2nd stick in 4 without that same shut-down loop (tried using either matched pairs). Manual specifies using DIMM2 and 4 (which are the black ones) for dual channel. Have also tried slots 1 and 3 (blue) with same shut-down loop results, no BSOD or error codes, not even any beeps. Computer boots normally and runs Win7 just fine with one 8GB stick in DIMM2. Also boots Windows and runs fine with one 4GB Corair chip in DIMM2.
Have done CMOS clears and also re-seated the cpu and heatsink/fan, and all pins and board connections looked OK.
Have some problem getting into the BIOS screen to look at things - seems to boot up so fast with a re-start that Delete key and F11 don't quite catch before Windows starts (8-year-old Logitech USB keyboard?). Have to completely power down and start up to get into BIOS, but that doesn't always work either. System recognized the memory change to the Corsair stick, but the screen went by so quick I couldn't catch it to get into BIOS.
Questions:
1) I've searched this board and read for hours about similar shut-down loops problems, but either nothing seems to match my particular quandary or I don't know what to look for. I don't understand what's happening with this shut-down loop - since all four sticks work individually in DIMM2, could DIMM4 slot be defective and I need to RMA the board?
2) I have not yet removed the board and tried to start it outside the case - could a short be causing the 2nd slot to malfunction? Standoffs are built into the case but they didn't seem too low, and the amount of standoffs matched the mobo mounting holes wiwth nothing else protruding. It's a really solid board that did not bend when being attached. It's also possible to look down behind the board with the front cover off and see that nothing is touching it. Will breadboard it next, since I have to take it out, anyway.
3) Where exactly is the Bios version printed on the board? Click Bios reports version as 2.5 but appears that 1.4 is marked on the board. Have done no updates of any kind, only thing I did was disable the splash screen so I could see POST (like I could read that fast...!). Do I need to contact MSI to find out what Bios version actually shipped with this board? It's OK if I got an older board with updated BIOS, but it's confusing when something different appears to be printed on board.
Additional info: Phase lights - LED is lit and all lights flashed at boot-up. CPU temp running for three hours idle is steady 37-38C, mainboard system temp 25C. Went with a larger power supply because I intend to use Crossfire and more drives in the near future, but using onboard video for now. System to be used for graphics/video processing with multiple programs running.
I'm currently working from an ASUS M3A78-CM board with AMD Phenom 9650 2.4 GHz. I've never dealt with an MSI or an Intel system before, and the Click-Bios is something new to me. Alas, I'm not an expert, but I've followed the basic steps I knew. What did I do wrong, overlook or just plain don't know? I sure would appreciate another opinion before I give up. I'm amazed at the speed of this motherboard/CPU combo - it's probably more than I need, but I'm intrigued to figure it out.
Looking forward to those opinions,
Jilliebob

Quote
Do this, and while it is in the open re-examine your cpu pins w/ a bight light and hd zoom or a magnifying glass.
Thanks, xmad, I'll look at th CPU again tomorrow/next day under the glass when I take the board out. I already checked them under magnification and was leaning toward a funky board, but it never hurts to re-check. Eyesight is not what it used to be, for sure (I miss DOS, if that's a clue...). Don't want to flash the BIOS if not necessary, since it runs Windows fine and everything works except that RAM.
Bernhard, I don't have CPU-Z installed on that machine and don't want to install anything else until it's working normally. I'd never seen Click-Bios before and just need to get over my initial suspicion of something new! Also learn my way around it before I change anything. I'd never encountered a board reporting a bios different than printed on it. I've never messed with manual memory settings or done more overclocking than just a little exploratory and suprisingly successful nudge - if you could point me toward a good basic explaination of all those settings, I could learn from there.
Appreciate your input very much.
Have learned a lot just reading the threads here for the last few days. This is the best forum I've ever encountered. I'll report back - some suggestions in other posts resembling my problem ended with no resolution, and that's a shame because one doesn't know if it worked or not.

MSI z77a-G45 Gaming 3770k overclocking?

I just recently purchased the z77a-G45 Gaming mobo and a i7 3770k, most of my googling would leave me to believe that the 3770k can easily obtain 4.6Ghz with fairly low voltages like 1.16-1.20 vcore; here comes the question...in order for me to obtain some level of stability @ 4.6Ghz I must crank my vcore to 1.4150 with 100% cpu offset resulting in a 1.39 vcore in windows with a 1.38 vcore under load. I have all power saving technologies disabled, pll overvoltage enabled, cpu vdroop offset set to 100%; my question is am I missing something with MSI boards as this is the first one I've ever owned or did I just get a very power hungry 3770k?
General system specs
MSI z77a-G45 Gaming MOBO
i7 3770k CPU
16Gb of Gskill Trident X 2400mhz memory
Corsair HX850 Gold PSU
MSI GTX 670 PE OC
Cooled by custom water loop

Alrighty, appreciate the info; gonna back down to 4.4Ghz as I can maintain stability with 1.275 vcore in bios = 1.26 in windows = 1.24 under load resulting in hottest core never exceeding 70...was really hoping for 4.7-5.0Ghz overclock when most everyone who reviewed this chip in the early days was claiming such great overclocks with such low voltage. But I'll chalk that up to either misinformation or non stability checked overclocks, I guess I'm old school; cause if it can't hold up to a minimum 24hr pass of Prime 95 small fft's it isn't stable in my book. Might consider delidding it in a year or so once the new wears off, I had my i7 920 for about that long before I lapped it into a mirror shine lol. So based on my new information 3770k's on average overclock between 4.4-4.6Ghz and can require up to 1.4 vcore and higher past 4.6Ghz which is where you start to really become thermally limited on liquid as the Ivy Bridge's 22nm technology puts the cores to closely together in combination with intel's cheap ass thermal compound solution. Maximum recommended voltage for 24/7 shouldn't exceed 1.4 vcore without some kick ass cooling or a combination of delidded processor and kick ass cooling cause ideally you want your cores mid 70's and below...that about sum it all up?

Z77a-g45 cpu power question

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