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Problems with RAM OC on Intel exterme board DP67BG

post #1 of 22
Thread Starter 
Hello everone. I am having a trouble with oveclocking my memory and i hope you can help me.
But first things first here are my specs :

DP67BG Intel extreme motherboard
Core I5 2500k (oveclocked to 5Ghz stable)
16 gb G.Skill F3-10666CL7D-8GBXH ( two kits of total 4 stics of ram)
http://www.gskill.com/products.php?index=346
coller master v8 CPU coller
2x MSI NGTX560ti 2GD5 graphic cards in SLI
OCZ vertex 2 SSD 60gb
1x 500 hdd
1x640 hdd
LC power arkangel pover suply ( 850w 74amp)
Extended ATX InWin Maelstrom case

The computer in working wery vell an stable with cpu on 5 ghz.
But the problem is that I cant change setting of ram at all only thing that works is XMP profile that loads defaul settings which are 7-7-7-21 1333mhz.
but problem is that if I only change from XMP to user settin and leave everything on default it is already enough to fail to start.
It is strange that system fails to bot with the exactly the same original setting on user setting option, but works with the same setteng under XMP without a problem.
This is my first Intel build so please tell me if I have to change something else in the BIOS to practicly allow me do do any memory OC.

Thank you all.
post #2 of 22
You will most likely have to raise your VCCIO (I think it's called "CPU IO" in your BIOS) as you are populating all 4 slots with relatively dense modules. Bump it up to 1.20v (if it fails still go to 1.25v), then report back. smile.gif
post #3 of 22
Could you post your BIOS screenshots so we know of the settings that are available to you. Thanks
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it looks alive
(17 items)
 
Sandy Transformed
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CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
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LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
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post #4 of 22
Thread Starter 
Here are scrrenshots of my bios.

p1170946.jpg


p1170947.jpg


p1170948.jpg
post #5 of 22
Thread Starter 
I have changed Processor I/o from 1.0500 to 1.2500 but problem is the same only XMP working and booting
post #6 of 22
Quote:
Originally Posted by Ajinta View Post

I have changed Processor I/o from 1.0500 to 1.2500 but problem is the same only XMP working and booting

thinking.gif Up RAM voltage to 1.55v. Also in your Memory Configuration I see your Command Rate set to "Auto", set that to 2.

Probably should have asked this first: Have you tried to set the RAM frequency and timings with just 2 modules in?
post #7 of 22
Thread Starter 
Yes I tried with 2 sticks in blue slots and with one stick too always the same problem
post #8 of 22
Thread Starter 
Even after setting to 2T and voltage to 1,55v it is the same story.
post #9 of 22
Apologies for the late reply (subscription page is a nightmare to follow), try this:


Host clock frequency to 100 (no reason to change Base clock unless you're trying to squeeze every last mhz from the chip - suicide runs or benching etc) consequently the memory will drop to it's stock speed of 1333mhz.

Try setting the RAM to 1.55v

I/O voltage to 1.1v

Manually set the timings: 7-7-7-21 2T (just the first 4 and the CM rate)

Report back and let us know how you get on. Test with super pi 32m and hyper pi. Post a screenshot as well if you can.

If it fails or doesn't boot, leave everything on default and set the RAm to XMP or whatever it takes to get them to work and run memtest for a few hours.
it looks alive
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Sandy Transformed
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CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
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it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
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post #10 of 22
Thread Starter 
In xmp profile it passes the test 5 times and i have no problem using my computer no metter how hard task i put in I yusc cant understand that ram OC isnt working at all.
Problem is it doesnt start event at the same setting as in xmp if I type them manualy.

http://www.xtremesystems.org/forums/showthread.php?267339-G.Skill-Ripjaws-X-F3-10666CL7D-8GBXH-gets-tested
And after founding this I know that my memory is capeble of same prety good OC.

Anyway could this "thin" could be caused by BIOS ?
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