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ASUS M4A785-M CPU VCORE unstable - Page 3

post #21 of 29
Thread Starter 
just finished running Prime95 for 12 hours w/ no errors during torture test (blend) ran HW monitor in the background and found no power loss to processor, and same vdroop as the OCCT did in 10 min tests. Currently set at 220x16.5

Current cpuz
tOL8Z.jpg
PCMark score at stock and at current OC settings
OAG19.jpg
No more throttling Prime95 12 hrs
7m1Xy.png
Vdroop Prime95 12 hrs
Rx4r4.png
CPU core 0 temps Prime95 12 hrs
Rue82.png

time to go higher:gunner2:
 
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post #22 of 29
Thread Starter 
Pushed her around some more stable here I believe I can up the CPU/NB still, PHII x4 will go to 3000 currently at 2748 (211x13 at 1.35v vddnb), and may try kicking memory down to 400 and raising ref clock to try and push 4-4-4-12 timings again.

Is there a difference between a ref clock at 211 vs 220 if i am adjusting the multipliers to yield the same overall ie 200x18 vs 211x17 CPU multiplier...meaning can I just stay at 200 ref clock and use multipliers only to increase oc instead of increasing ref clock and having to lower memory frequency?

current settings
 
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post #23 of 29
Yes you can just stay at 200 ref clock and only use the multiplier, that's the purpose of a BE.

I haven't read the whole threat, but have you solved you problem with Vdroop?

I have almost the same board m4a785td-v evo, and i find that using a LLC ( load line calibration) of 19,25% or something like that ( the option with 19% on it) the least fluntuating on the V core.

When i set the vcore to 1.55v i get these reading 1.504, 1.536, 1.552, 1.568, 1.582

But most of the time i get 1.56volts.

Hope that helped.
post #24 of 29
Thread Starter 
Quote:
Originally Posted by Erick View Post
Yes you can just stay at 200 ref clock and only use the multiplier, that's the purpose of a BE.

I haven't read the whole threat, but have you solved you problem with Vdroop?

I have almost the same board m4a785td-v evo, and i find that using a LLC ( load line calibration) of 19,25% or something like that ( the option with 19% on it) the least fluntuating on the V core.

When i set the vcore to 1.55v i get these reading 1.504, 1.536, 1.552, 1.568, 1.582

But most of the time i get 1.56volts.

Hope that helped.
yes vdroop has been solved as best it can my voltage is only set to 1.475 with LLC at 25 more so tx though...what processor are you using?
 
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post #25 of 29
I've had the same problem with after upgrading from a 945 to a 955BE.

Disabled one core and board ran perfect...

Have decided to put the 945 back on this board and run the 955 on another mobo that I know can handle it.

Never had any problems with Asus boards before, but Gigabyte seem to be favourite now.
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post #26 of 29
Thread Starter 
right on...hey overall for a a 99 dollar board I'll take what she has given me but indeed it has limits, the power management can only get so good from this 4+1 4 pin as I have learned (lots of good info in this thread)...this was my first O.C. and damn happy with 3.7Mhz CPU/2.7 NB. Next move is a big step for me looking at the 1090T and the Crosshair 5 for my next build! Wish me luck
 
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post #27 of 29
I have now put my 955BE on a Gigabyte MA78LMT-US2H with some Corsair Value ram and it is now happily running at 4.2GHz on default voltages and memory timings. Would boot up at 4.35 and then BSOD after loading windoze.
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post #28 of 29
I might advise against that actually. While the M4A785-M uses a high quality VRM design that works well when cooled (when overclocking processors), the MA78LMT-US2H is the opposite. This is not a high quality VRM design and I know OCN users on boards such as the MA785LMT-US2H and 880GM-UD2H - which have same VRM design - that have had problems on their boards. Two or three users have reported heavy squealing from the VRM areas during load with higher TDP processors with OC. One or two have reported total failure.
post #29 of 29
Thread Starter 
fiend I don't know much but I am learning, and posts do back up xd's findings/knowledge. I know that if AMD did not have Over Current Protection my board would have fried at 3.7 long ago...and for that matter 3.7 is pushing it, even with added mosfet heatsinks I can still get throttling seen in this thread when under heavy load, and by heavy load not just OCCT for 10 minutes. PRIME for 12 hrs fails between 8 and 12 currently W/O throttling present. Then w/ dirt 3 using the video render tool and upload to youtube it is under heavy load and OCP kicks in. Anyways Gigabyte= no OCP= cooked at some point.

When looking at both boards side by said the amount of mosfets and spacing is different looks that M4785-M will cool better just in design alone(more mosfets, more space = less heat) just guessing actually but seems logical hope this helps!
 
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HP w1907 DELL COOLMAX CTI-600B 600W ATX12V Power Supply HP  
MouseMouse PadAudio
Logitech Walmart special Creative Sound SBS250 
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Element II
(24 items)
 
Element I
(15 items)
 
CPUMotherboardGraphicsGraphics
Intel Core i7-3930K Sandy Bridge-E ASUS Rampage IV Formula LGA 2011 Intel X79  MSI N680 PE 2GD5/OC GeForce GTX 680 2GB MSI N680 PE 2GD5/OC GeForce GTX 680 2GB 
RAMHard DriveHard DriveCooling
Mushkin Enhanced Blackline 8GB (2 x 4GB) 240-Pi... SAMSUNG 840 Series MZ-7TD500KW 2.5" 500GB SAMSUNG 840 Series MZ-7TD500KW 2.5" 500GB CORSAIR Hydro Series H110 Water Cooler 
PowerCase
SILVERSTONE SST-ST1000-G Evolution 1000W Corsair Special Edition White Graphite Series 6... 
CPUMotherboardGraphicsGraphics
FX-8150 Asus Crosshair V Formula  MSI R6950 TWIN FROZR III PE OC MSI R6950 TWIN FROZR III PE OC 
RAMHard DriveHard DriveOptical Drive
Mushkin Enhanced Redline 8GB (2 x 4GB) DDR3 160... Samsung 830 Western Digital Caviar Blue 1TB  LG Black Blu-ray Disc Combo UH10LS20 LightScribe  
Optical DriveCoolingCoolingOS
Asus DRW-24B1ST (Black) Noctua NH-D14  FANS x10 in details Microsoft Windows 7 Professional  
MonitorKeyboardPowerCase
Samsung Syncmaster T220HD Logitech K520 SILVERSTONE Strider Gold ST1000-G  Cooler Master CM 690 II Advanced  
MouseMouse PadAudioOther
Logitech M310 black one with a pad Bose Companion 3 Series II Scythe KM02-BK 5.25" Bay Fan Controller 
OtherOtherOtherOther
Rosewill RCR-IC002 74-in-1 USB 2.0 3.5" Interna... Logitech Cordless Rumblepad 2  Microsoft xbox 360 wireless controller Logitech Gaming Headset G930 
CPUMotherboardGraphicsRAM
Phenom II X 6 1090T Asus M4A785-M XFX Radeon HD 5750 G.Skill 2x2gb 800 
Hard DriveOptical DriveCoolingOS
Samsung Spinpoint  Sony DVD RW DRU-840A Stock AMD Windows 7 Pro x32  
MonitorKeyboardPowerCase
HP w1907 DELL COOLMAX CTI-600B 600W ATX12V Power Supply HP  
MouseMouse PadAudio
Logitech Walmart special Creative Sound SBS250 
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