Posted August 10, 201311 yr Hi all. I have a strange bug with MSI Z87 Mpower under LN2. I have an air preset, fully stable. Here is it: CPU Ratio x47 Uncore Ratio x39 VCCIN 1.8 VCORE 1.27 VCCSA +0.2 DRAM 2400 MHz @Cl9 1.95v (PSC, Memtest ok) PLL Filter Enabled (SB PLL) Power Limits 4096 OVP, OCP, C State, EIST, Intel Thermal Control, VID Connection & etc are disabled. 4cores|8 Threads So, I booting with that profile. Temps on LN2 Pot is about -80. I set up VCCIN to 2.3, after CPU Voltage to 1.75 volts without increasing ratio. After that all motherboard immediately shuts down. No bsod, no reboot, just shut down. If I set lower voltage, for example 1.5, it's works and allows overclock. 1.6 same as 1.7 but not always. Used bioses: 1.4b3 1.4b4 1.4 1.2 Any ideas? video Edited August 11, 201311 yr by benchmark.kz video added
August 10, 201311 yr I tried 1.43b and could run fine on air but it didnt run cold. Not sure if it was voltage or temp related. On 1.2 it runs fine but bclk doesnt work. Pretty sure it was 1.2 or something close. Never figured out a good solution.
August 10, 201311 yr Author I tried 1.43b and could run fine on air but it didnt run cold. Not sure if it was voltage or temp related. On 1.2 it runs fine but bclk doesnt work. Pretty sure it was 1.2 or something close. Never figured out a good solution. On air works fine too.
August 10, 201311 yr Author Not incredibly helpful, but get a better board I have a same think, but, may be, anybody have a magic trick to make it works.
August 10, 201311 yr Are you sure you have all the OCP OVP settings in the right order? Sounds like an OVP/OCP
August 10, 201311 yr Author Are you sure you have all the OCP OVP settings in the right order? Sounds like an OVP/OCP It's really sounds like as OVP/OCP, but it is disabled in BIOS. I swear.
August 10, 201311 yr Author also tryed different fiVR freq (300-350-400 MHz) and Vdroop (15%-50%-75%-100%). Not helps.
August 10, 201311 yr brother, I have also tried Mpower with ln2 and I was pretty bad, In xTU 5ghz turned off until I do not understand why. I've tried some different things bios and bios. Nothing helped to be stable. Very different from the xpower that is far more stable. I hope it will be your
August 10, 201311 yr Apparently I used V1.3 for everything. I did all of my MOA subs with that bios and chip ran pretty strong. The only downfall was that bclk changes would lock up system within windows and that i couldn't boot with anything other than 100. I put 1.43 on the 2nd bios and bclk worked fine when testing on air but as soon as I tried ln2 it wouldn't work. Since I had the pot cold already, i flipped the switch and just ran V1.3 with 100 bclk. None of this is taking into consideration obvious issues such as psc not working at 2600 or 2666. Matter of fact, I'm pretty sure the 2600 strap is broken.
August 11, 201311 yr Author Mikecdm, thanks, will try lastest 1.3 version. Will report here, helps/or not.
August 11, 201311 yr My MPower works fine. Can do 1,85 Volt without problem and already benched at 6,3 GHz without problems. Using E7815IMS.123 BIOS without problems.
August 11, 201311 yr Author My MPower works fine. Can do 1,85 Volt without problem and already benched at 6,3 GHz without problems. Using E7815IMS.123 BIOS without problems. Where I can download it? In bios list it is absent. It's seems you using MPower Max, not MPower Edited August 11, 201311 yr by benchmark.kz
August 11, 201311 yr Under the cpu settings in the oc tab, put the core current to 200. this should solve the issue
August 11, 201311 yr Author Under the cpu settings in the oc tab, put the core current to 200. this should solve the issue You mean CPU Core OverCurrent protection? It can be only auto or enhanced. OverVoltage setings is 500mV Edited August 11, 201311 yr by benchmark.kz
August 11, 201311 yr Where I can download it? In bios list it is absent. It's seems you using MPower Max, not MPower No it's the normal MPower. I also got the MPower Max and XPower here but those have a different bios. Uploaded for you: http://www.file-upload.net/download-7949212/E7815IMS.123.html
August 11, 201311 yr Author No it's the normal MPower. I also got the MPower Max and XPower here but those have a different bios. Uploaded for you: http://www.file-upload.net/download-7949212/E7815IMS.123.html Thanks, will try to use it. But Regullar Mpower bios marked as 7818, not 7815 Edited August 11, 201311 yr by benchmark.kz
August 11, 201311 yr Author Here is a video wihth system shudown. on video it is shutting down at 5.5 Ghz, but these shudowns so randomized and they can be also at 4.7 Ghz
August 11, 201311 yr You mean CPU Core OverCurrent protection? It can be only auto or enhanced. OverVoltage setings is 500mV No, I mean in the oc tab, all the way down to CPU features, then set CPU Current Limit (A) to 200
August 11, 201311 yr Author No, I mean in the oc tab, all the way down to CPU features, then set CPU Current Limit (A) to 200 I was setup up there 1024A. 200A doesn't help too.
August 11, 201311 yr Crew could this be PSU related ? Coolermaster 800W ? you are pumping some nutty voltages there man for them clocks...
August 11, 201311 yr Author could this be PSU related ? Coolermaster 800W ? you are pumping some nutty voltages there man for them clocks... Yes, It is CoolerMaster Silent Pro 800W Gold. Tryed to use Thotech Thunderbolt 850W - same. Next week will try to use Maximus 6 Extreme with that CPU, will see.
August 11, 201311 yr well, John had runs on >6ghz i3770 with overclocked 7970 on the same power supply. It is strange that system shuts down even with cpu idle - just with the vcore rised.
August 11, 201311 yr Crew well my old AX1200 did stuff like that too sometimes, sometimes flawless then all of the sudden she went down...
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