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Asus M4A88TD-V EVO/USB3 OCP

post #1 of 5
Thread Starter 
This motherboard, which can also be seen in my sig rig has a feature called "Over Current Protection", which by default, is enabled in the bios.

As far as I can tell this feature can clock down your CPU by reducing the multiplier in an attempt to relieve the VRM's/MOSFETS from the high temperatures OR voltages running through them. I'm not sure if it's the temps or the voltages.

The following leads me to believe it is because of the temperatures:

While running IBT with a voltage lets say of 1.55v, it will clock my system down by reducing the multiplier for a few seconds and then resume at the set multiplier. This leads me to believe the temperatures were to hot and it did this to cool itself off. I have tried adding a 92mm fan directly above it blowing on top of them to see if it would make a difference and it changed nothing.

BUT, this could also be because of voltages, because even if my voltage is set at 1.52v in the bios it can still reach up to the 1.6v area due to a feature called Load Line Calibration(LLC). When enabled, it creates voltage rise. When disabled, it creates voltage drop.

..At least in my case it does.

The following leads me to believe it was because of the high voltage:

When I try to boot up with voltages over 1.6v, just seconds after the posting the motherboard will shut down. It does not do this if I lower the voltage.

So I'm leaning towards it being an only voltage safeguard, but I have no confirmation. I even tried contacting Asus support and the guy I was talking to on live chat seemed as if he were like 13. I was told that there was a feature called "Over Current Protection", but there was no way for me to disable it and there was no way for it to change my multiplier in an attempt to lower voltage or reduce temperatures. The thing is.. there is clearly an option in the bios labeled "Over Current Protection", and it is enabled.

Really, I'm just wondering if I disable this feature in an attempt to raise the voltage without interruption and achieve a higher overclock if it would be a bad thing for my VRM's/MOFSETS. If it would be a bad thing.. could I add more VRM/MOFSET cooling? Or can the VRM/MOFSET's not simply handle the voltage I'm trying to put through them?

All input is appreciated.
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post #2 of 5
i have same problem with you, my procie throttling.. where i can find OCP ?
i think is EPU but maybe i'm wrong..

my diagnostic is cpu temp too hot, have a range +- 15ºC with core temp and when cpu temp reach tj-max +- 63ºC and temp sensor on mobo read it to protect, and it's going throttling mad.gif

something going wrong with cpu temp, i believe temp 1055T didn't read accurately..

CMIIW
 
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post #3 of 5
Well.. I think this feature will stop you MoBo from getting a Short... Even if its Volt, Or overvolt from your PSU or anything that could SHort your MoBo... Thus I think it will be smart to keep it enable.. But, Just my Opinion. biggrin.gif

Edit: BTW! NICE MOBO!!! biggrin.gif
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post #4 of 5
Quote:
Originally Posted by age_ruler1;13378936 
Well.. I think this feature will stop you MoBo from getting a Short... Even if its Volt, Or overvolt from your PSU or anything that could SHort your MoBo... Thus I think it will be smart to keep it enable.. But, Just my Opinion. biggrin.gif

Edit: BTW! NICE MOBO!!! biggrin.gif

yes that's true, i have tried once biggrin.gif
but give a wall if i want bench at higher clock and higher volt mad.gif
 
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Hard DriveHard DriveHard DriveCooling
WDC Black Sata II 32MB 500GB WDC Green Sata II 1TB WDC Green Sata II 1,5TB Corsair H100i 
CoolingOSMonitorKeyboard
Coolermaster Seidon 120M modded to HD 7970 Windows 7 64bit Dell P2211H Logitech K310 
PowerMouseAudio
Corsair AX760 Logitech MX™518 Microlab X321 
CPUMotherboardGraphicsRAM
Core i7 2600K @4.5Ghz Asus Maximus V Gene ATI OEM 5770 G.Skill Eco 4GB 7-8-7-24 1T @1600Mhz 
Hard DriveCooling
WDC Black Sata II 32MB 500GB Thermaltake Frio Adv. 
CPUMotherboardGraphicsRAM
Phenom II X3 720BE 3,2Ghz Biostar TA790GX 128M Sapphire HD4670 GDDR3 512MB 2x Corsair XMS2 2GB 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 250GB Lite-On Sata Windows XP 32bit LG W1953SE 
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FSP Saga II 500w Simbadda SIM-V 
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Bloody Red
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LittleDAMnRig
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CPUMotherboardGraphicsRAM
FX-8350 4.0GHz | 4.5GHz | 5GHz | 5.2GHz (Max) Asus M5A99X EVO R2.0 XFX HD 7970 Core Edtion to GHz Edition | Modded... Samsung LP 30nm 16GB 1600Mhz CL7-8-8 24 2T 
Hard DriveHard DriveHard DriveCooling
WDC Black Sata II 32MB 500GB WDC Green Sata II 1TB WDC Green Sata II 1,5TB Corsair H100i 
CoolingOSMonitorKeyboard
Coolermaster Seidon 120M modded to HD 7970 Windows 7 64bit Dell P2211H Logitech K310 
PowerMouseAudio
Corsair AX760 Logitech MX™518 Microlab X321 
CPUMotherboardGraphicsRAM
Core i7 2600K @4.5Ghz Asus Maximus V Gene ATI OEM 5770 G.Skill Eco 4GB 7-8-7-24 1T @1600Mhz 
Hard DriveCooling
WDC Black Sata II 32MB 500GB Thermaltake Frio Adv. 
CPUMotherboardGraphicsRAM
Phenom II X3 720BE 3,2Ghz Biostar TA790GX 128M Sapphire HD4670 GDDR3 512MB 2x Corsair XMS2 2GB 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 250GB Lite-On Sata Windows XP 32bit LG W1953SE 
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by reisya;13377269 
i have same problem with you, my procie throttling.. where i can find OCP ?
i think is EPU but maybe i'm wrong..

my diagnostic is cpu temp too hot, have a range +- 15ºC with core temp and when cpu temp reach tj-max +- 63ºC and temp sensor on mobo read it to protect, and it's going throttling mad.gif

something going wrong with cpu temp, i believe temp 1055T didn't read accurately..

CMIIW

Make sure core unlocker is turned off - I accidently turned that on once and it really screwed with my temps.

Anyway, it is actually called "OVP" in the bios. It's under the "Power" section.

Power > Anti Surge Protection [On]/[Off]. In the description it tells that it enables a feature called "OVP" when turned on. It looks like it is actually called Over Volt Protection and would explain why when I try to boot with a certain amount of volts it immediately shuts down.
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Celerity
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CPUMotherboardGraphicsRAM
Intel i7-6850K @ 4.5GHz / 1.41v Asus X99 Deluxe II EVGA GTX 980 Ti Classified  Corsair Vengeance LPX 4x8GB 3000MHz 
Hard DriveHard DriveCoolingCooling
Samsung 850 Pro 256 GB Western Digital Purple 2TB XSPC Raystorm Pro XSPC RX 360 
CoolingOSMonitorMonitor
XSPC D5 Photon 170 Windows 7 Professional BenQ GW2765 ViewSonic XG2401 
KeyboardPowerCaseMouse
Corsair Strafe RGB MX Silent EVGA SuperNOVA G2 750W Fractal Design Define S Logitech G900 
Mouse PadAudioAudioOther
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