[SOLVED] Intel i9 7960x , Multi-core enhancement Failure, (help requested)

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HaizRail007

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Mar 21, 2015
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Hello, it's been awhile since I've posted anything on here, But I've hit a wall and I'm not sure how to solve the issue. So let me start, The problem is that when I turn multi-core enhancement on in bios, and then I try to run either prime 95 or handbrake, the pc then bsod's within 10 seconds of either running prime 95 or or starting to render video using handbrake.

I've tested the cpu, checked Motherboard pins and memory modules and all are fine and dandy. I was thinking it was a motherboard issue, so I swapped out the motherboard hoping that would solve the issue. but to my dismay there was no change. the first Motherboard was a asrock x299 Killer sli/ac and the second was a gigabyte x299x arours master. In addtion I checked voltages and power draw using occt I got a reading from the cpu of 280 to 430 watts. all the power supply voltages were normal according to occt. In addition, running multi-core enhancement on, in general leaves the computer running fine except prime 95 and handbrake. I did notice it blue screened once while playing cod modern warfare, with the multi-core enhancement turned on. but if I turn it off everything runs fine on the asrock motherboard. I did send back the gigabyte board back due to it not wanting to post after a software restart. and I have bought another motherboard and I'm just waiting on it to come it. but any idea's on what is causing the multi-core to crash the computer. Moreover, I've got a buddy running that gigabyte board and a 9900x, he as well gets the bsod with multi-core enabled, when running those two programs .

pc spec's

monitors

3 24 in asus 1920 x 1080

1 40 in lg 4k tv

balistic sport 2400 mhz ddr 4 memory

cpu 7960x
gpu gigabyte aorus 2080ti WBE
m.2 860 evo
1 optical drive
1 card reader
1 hotswap
aver media capture card c985
1 mechanical hhd

cooling specs

I've tried both cooling methods

Method one

cpu cooling

480mm X 60mm raid
phobia waterblock
8 Noctua NF-F12 iPPC 3000 PWM push/pull configuration
alphacool d5 pump none pwm
2 Noctua NF-F12 iPPC 3000 PWM front Intake and 1 for exhaust

for gpu loop
2 Noctua NF-A14 iPPC-3000 PWM
280mm x 60 mm raid.

Method 2

cpu cooling
noctua d15 air cooler

psu 1300 watt super nova gold rating

gpu loop carries over and so does the 2 front intake fans and 1 exhaust fan in the rear , However, I've taken the 8 fans in the top and removed 4 and turned then into 4 additional intake fans.
and speed setting is on silent except for cpu fans which are maxed.

In addition, I've looked at event viewer on my system and my buddies and when both systems suffer from the dreaded crash, event viewer log's it as power kernal 41.

consequently, if the turbo boost 3.0 is enabled without multi-core enhancement turned on I get the same crash . but if I turn on McE and turn off all turbo boosts, it works normal and no crashes. I do feel as if it's a power issue. Furthermore, if turbo boost 3.0 along with McE is enabled and the standard turbo boost is disabled, the pc doesn't crash in prime 95 , but the video signal to my 4 monitors goes out, indicating a massive power draw.Lastly, the cpu is not being overclocked and I'm trying to get it to run with in intel's specifications.
 
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Solution
I can replace the 8 sticks with 2 sets of quad for 160

That just puts you right back where you are now. The whole problem is that ALL sticks need to come in ONE kit, or else there are no guarantees that they are all going to "play nice" together.

The odd man out, (Or, mixed memory)


While memory modules that did not come together in a matched set that was tested by the manufacturer to be compatible, certainly CAN still work together, often it does not. Right up front I'll tell you that if you are trying to get sticks to work in the same machine together that were purchased separately, even if they are otherwise identical according to the kit or model number or if they would seem to have identical timings and...
Okay update fellows. it wasn't the memory that was causing the crashes, it was the asrock motherboard. I've ran pime 95 for 15 minutes and it's running great with the air cooler. it hit 106 degree's C though, and it did thermal throttle, which was expected. but I do have a question under task manager the cpu speed is listed as 2.81 no matter the task running or not running, on the asrock board it varied, is this normal for asus boards. when I run hwmonitor the cores say different. in addition, I do have turbo boost enabled and I couldn't find a option in bios for turbo boost 3.0. and mce is set to auto, it has no option to enable it, just auto and disable. here's a few screen shots.

desktop image 1
desktop image 2

I will aso give bios images as well
 
No, I mean "still using it", as in, on your system. You are not still using a warped water block with your hardware, to cool it, right? Because if you are, you are seriously begging for a leak or cooling failure that might simply take out your hardware and end all your worries, or even be contributing to the problems you are having right now.
 
No, I mean "still using it", as in, on your system. You are not still using a warped water block with your hardware, to cool it, right? Because if you are, you are seriously begging for a leak or cooling failure that might simply take out your hardware and end all your worries, or even be contributing to the problems you are having right now.
No I'm not using it. I took the d 15 off my media computer once I noticed it. But could you look at the picks and tell me if that's normal for a Asus board.
 
I don't like the ASUS profiles. I prefer to either run the full-on stock Intel behavior as intended or manually configure everything including all of the main/primary voltages and core behaviors. Frequency, core voltage, per core (versus synced), no multicore enhancement, manually set VCCIO and VCCSA voltages, memory XMP, LLC, and other recommended settings on a per generation basis, which changes to some degree or other from generation to generation.

And, if we're being honest, unless you are willing to dedicate a goodly amount of time to tweaking things, it's a really good idea for most people to simply set the optimal default settings in the BIOS, then enable XMP, then configure your fan profiles and other basic customizations and then just leave it that way. The automatic "overclocking" profiles, including ASUS multicore enhancement, just seem to add thermal and electromigration potential where none is really necessary because they ALWAYS tend to overvolt everything in order to err on the side of stability.
 
I agree a 100 % and I'm glade this board is working, but I haven't used a asus board since amd fx 9590, so there's a few thing's I need to brush up on. I am wondering about the task manger cpu speed thing though. everything else says it's boosting to 4.4 Gb, such as cpuz, but that fixed speed in task manager has me stumped.
 
Okay, fellows last update, The new motherboard is operating as it should now, the problem with the task manager not reading the cpu speed correctly was due to the bios. This motherboard came with bios 0224 and I updated the bios to the latest version 0702 as of writing this update.

In addition, I'd like to comment again on why I started this post. I was running an x299 asrock killer sli/ac motherboard, and it would blue screen when enabling turbo boost 3.0 and multi-core enhancement when the cpu would hit 4.4 Ghz. I ran memory test's, pulled memory, and tested the memory in multiple configurations and it all came back good. I'm running two separate sets of memory and it's not always going to work, Meaning your mileage may very if you try it. Moreover, I tested the cpu and psu and they both came back good. One mistake I had noticed, the memory was not paired correctly which was causing the system to slow down among other aspects. The reason for the mistake was because I bought the memory used and the identifiers were removed prior to me receiving them. In order to identify them I had to remove the heat shields from the sticks and look at the serials listed on the pcb with a magnifying glass. After this I switched to the asus prime edition 30 motherboard and when I pulled the cpu water-block I noticed it was warped, it was hard to see, but I did notice it. I've never, seen a copper block do this, but then again copper is a soft metal if I'm not mistaken and with the correct amount of heat it can bend. after noticing this I pulled the entire cpu water loop, and inspected the asrock motherboard carefully, not only did I find rust around the treads of the motherboard's cpu posts, but I found a few swollen capacitors. Moreover, when rebuilding the pc I used the noctura d 15 out of my media computer, to go on the prime board.

I will say this, I had to install the gpu in the second pci-e x16 slot, because with that air cooler installed, there wasn't enough clearance to use the first slot like I wanted.

here's a image not the best but you get the idea.

Pc with air cooler

Long story short the new build is running within spec after bios update.

and remember fellows water cooling is great until you have a problem.

I believe what happened is this, the cpu block bowed and which caused a small leak, which in turn shorted something out on the motherboard, the swollen capacitors, I think was a by product of the short not sure. short of it was the asrock x 299 killer sli/ac motherboard was at fault.

I thank you all your ideas and help.
 
Please do not select your own post as the best answer, in any thread you create. That is a violation of our rules and guidelines. Thanks.

As far as the task manager is concerned, PFFFT. Task manager and resource monitor haven't been accurate since, well, any version of Windows to be honest. I can recall the last time I used resource monitor in years and years and for task manager I only use it to see running processes, startup program listings and for a comparative listing of what is using the most memory, CPU, or storage device resources, and only comparatively. I don't rely on it's figures to be exacting whatsoever.

Glad you got it sorted out.
 
Please do not select your own post as the best answer, in any thread you create. That is a violation of our rules and guidelines. Thanks.

As far as the task manager is concerned, PFFFT. Task manager and resource monitor haven't been accurate since, well, any version of Windows to be honest. I can recall the last time I used resource monitor in years and years and for task manager I only use it to see running processes, startup program listings and for a comparative listing of what is using the most memory, CPU, or storage device resources, and only comparatively. I don't rely on it's figures to be exacting whatsoever.

Glad you got it sorted out.
Yeah I'm glade too I've got a huge video render coming up, so it couldn't of happened at a better time.

as for selecting my own post as the answer, well every case is different and in this case, it turn out with my tech background and the help from you and other's I was able to slove the issue. but if that is not allowed then just go into the html code of the website and disable the feature for the original poster. I know it's a lot of work but it can be done. I hope this thread can help someone in the future. I thank you and take care buddy.
 
You're preaching to the choir. We've been asking for that to be disabled since day one. It is apparently not that easy however since we use Xenforo, but Xenforo does not HAVE a BA system, so a custom BA system module had to be developed and simply rewriting the module to make that change is apparently not all that easy for the devs that involved so it has not been a big priority. Suffice to say, for the amount of times it happens they prefer us to simply enforce the rule as is, so that's what we do. This is something that is above our pay grade and since we don't GET paid in any way, is not something we are going to spent a lot of time fretting over or arguing about.
 
I understand how that goes, Nevertheless, it seems as if it put's more work on y'all. I've had to do a little program coding for html and it can be tedious, and html coding is on the easy side, compared to say android. nevertheless, I'll stick with building, maintaining and repairing pc's any day of the week. shoot video editing is simpler to me than coding.