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Can't get stable overclock. Same CPU, memory, everything... just a slightly different Motherboard.

post #1 of 3
Thread Starter 
Hey everyone, I was getting a stable 4GHz on my MSI X99a SLI Plus motherboard with a i7-5820k with no problem. However, the other day I screwed my motherboard up so I had to buy a new one. Slightly different but in the same "family" of boards; it's the MSI X99a SLI Krait Edition. No matter what voltage, CPU Ratio/multipler/ I use it won't post. The only thing I got to post was setting the Base Frequency to around 3.7Ghz without touching the multiplier and upping the voltage to around 1.2.

When I restore defaults, keep Base Frequency stock, but up the multiplier to 4GHz or actually anything other than stock it won't post. Don't know why this is happening. The Core voltage won't go past 1.25 (If I put in 1.3 it shows as red and goes back down). It is really frustrating. I have a amazing cooler; it's the Be Quiet Dark Rock Pro 3 and on my old system with the SLI Plus motherboard I was able to hit 4.2 GHz easily stable before I backed down to a conservative 4GHz...

With this Motherboard I am just not sure why nothing I change will post except the Base Frequency which only goes to around 3.7Ghz. Really hoping someone has some tips.

Some folks on Reddit were mentioning that the board could be defective, but I am just not sure anymore. Any ideas?

Here is a pic of the interface:

http://imgur.com/u9tSbMi

Thanks so much for any input!smile.gif
post #2 of 3
Have you updated the BIOS to the latest available? That may very well help your situation.
Beast
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Beast
(14 items)
 
Dell XPS Faptop
(8 items)
 
Alura :)
(11 items)
 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
Core 2 Duo T5250 @ 1.5ghz Dell 0N6705 Mobile Intel 965 Express 2 x 2GB Hyundai/Kingston DDR2 533mhz 
Hard DriveOptical DriveOSMonitor
OCZ Summit 60GB SSD Slot Load DVD-RW Windows 7 Ultimate x64 13.3 inch 1280x800 
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Pro MSI R7970 Lightning BE 2 x 4GB G.Skill Ripjaws 2133mhz 
Hard DriveOptical DriveCoolingOS
Mushkin Enhanced Chronos 240GB and WD Black 1TB Asus DRW-24B1ST Cooler Master Hyper 212 EVO Windows 7 Ultimate x64 
MonitorPowerCase
Hannspree 24 inch Thermaltake Tough Power TP-750P 750W Gold Cooler Master HAF 932 
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Reply
post #3 of 3
Before you RMA the board to the manufacturer, go back and look closely at your BIOS settings.

For instance, you could set the XMP profile for RAM. So far, so good. The bCLK should default to 100, although I think it has a ratio or strap, which you can select. Fix it at 100 for the time being. Now . . . . There should be another setting for the actual RAM speed. The XMP profile will offer up settings at or below the RAM spec, and you would have chosen the spec speed. But if this second setting is on Auto, check that sub-menu so you can fix the speed at the exact RAM spec.

I could imagine something else is wrong, though, when a 1.3V setting for VCORE (or total adaptive Turbo voltage -- however you configure it) -- is shown in red to indicate something beyond a safe range.

And I would also suggest, before you even follow any suggestions or investigate further -- reset the CMOS, get back to default settings, and then enter your tweaks again -- carefully. After that, as Dopamin3 says, update the BIOS.
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