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Asus M3N-HT Non C&Q Multiplier problem

post #1 of 5
Thread Starter 
Hi to all!
I'm using M3N-HT Mobo for the half of year, and recently I've faced with the really annoying problem
The multiplier drops to 4x under load, no matter of the CPU temperature, as well as of the other idicators.
I have two OS's - XP and Win7, the problem is the same. No C&Q, and Win7 power consuming profile is set to Perfomance. Moreover, reseting BIOS settings, moving CLRTC jumper, unplugging the battery don't help at all.
The CPU cooler installed - Asus Arctic Square, keeps CPU cool, near 50C Under LinPack, but my Mobo continues dropping multiplier (as well as voltage) from 15x to 4x.
Then, SOMETIMES after 4-5 minutes, the multiplier is recovered. I suppose VRM to be overheated, but there is a strange circumstance: after being hibernated, the PC works fine without any multiplier lock. So, to have CPU working at 3Ghz you should boot OS (800Mhz), then make it "sleep", and "wake up" it => 3Ghz stable (tested in OCCT for 30min @3700Mhz at 1,42V). So, what the trigger is on when hibernating?

The screenshot:
http://img153.imageshack.us/img153/9...throttling.jpg

Have You any ideas on this issue?
Thanks for the prompt reply!
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post #2 of 5
It could be some sort of a driver problem within Windows or a BIOS issue. The fact CnQ is overridden after resuming from hibernation shows that something isn't quite right. Since it happens the same on the two OSes, the common part is the hardware, the motherboard probably has some issues. Try a BIOS reset and / or a BIOS update.

I use a better thing to control the C'n'Q - it's a soft called K10Stat. You can control everything on your processor - speed, voltage, NB speed, NB voltage, ramp up/down speed and at which % load it occurs. You could easily lock your CPU at a certain multiplier or tune a setting that would only rarely decrease CPU speed.
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post #3 of 5
Thread Starter 
dragosmp
Thank you! Does K10Stat work on all motherboards, i.e. with nvidia chipset (780a SLI)?
Edited by Shtopor - 8/1/11 at 7:26am
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My System
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CPUMotherboardGraphicsRAM
i7 2600K Asus Maximus IV Extreme-Z MSI GTX 780Ti AMD Perfomance Edition 
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Samsung 840Pro Samsung 502HJ Pioneer DVR-219LBK Win7 32-bit 
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LG 27MT93V Chieftec BPS-C2 850W LogicPower 9901 A4Tech R8 
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post #4 of 5
This is the symptoms of VRM throttling, however with an 8+1 setup on your motherboard and beefy MOSFET heatsink, I doubt it's a problem.
See if the MOSFET heatsink is loose and ensure it is tight.

It may also be CPU heat. Check your CPU temperatures to ensure it is not too high and throttling as a result.
post #5 of 5
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
This is the symptoms of VRM throttling, however with an 8+1 setup on your motherboard and beefy MOSFET heatsink, I doubt it's a problem.
See if the MOSFET heatsink is loose and ensure it is tight.

It may also be CPU heat. Check your CPU temperatures to ensure it is not too high and throttling as a result.
Hmm. I don't think its the CPU throttling, because I've never heard about throttling AMD. In condition of CPU overheating, the AMD system shuts down.
Futhermore, in worst circumstances, CPU temperature riched 57C, CPU core - 52C (under LinPack with 31C environmental temp.)
Given screenshot controverts CPU temp. throttle theory
http://img153.imageshack.us/img153/9...throttling.jpg

VRM overheating and throttling is more probable, BUT, for the last few days, even when staying calm at !!! 0,91V Vcore and 800Mhz the CPU frequency is not recovered. If it was the VRM temperature factor - it would recover, because at such a frequency and voltage the VRM components (8+2 Phase) are really cold even without a heatsink at all.

dragosmp
I've tried K10Stat. Nice utility, but in my situation, has no effect on CPU multiplier at all. I can change voltages, P-states, but MB rejects the idea of multiplier increase

I suspect MB protection to be activated in connection with one of the sensor's alarming, which is not indicated to user The sensor is going to be damaged, I think, that's why system can properly work at far more greater perfomance => after hibernating, protection is likely to be deactivated, so the system works at full speed.

The question is, what sensor may influence CPU multiplier, which is not indicated to user and depends on hibernating
Edited by Shtopor - 8/2/11 at 1:22am
My System
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i7 2600K Asus Maximus IV Extreme-Z MSI GTX 780Ti AMD Perfomance Edition 
Hard DriveHard DriveOptical DriveOS
Samsung 840Pro Samsung 502HJ Pioneer DVR-219LBK Win7 32-bit 
MonitorPowerCaseMouse
LG 27MT93V Chieftec BPS-C2 850W LogicPower 9901 A4Tech R8 
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Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K Asus Maximus IV Extreme-Z MSI GTX 780Ti AMD Perfomance Edition 
Hard DriveHard DriveOptical DriveOS
Samsung 840Pro Samsung 502HJ Pioneer DVR-219LBK Win7 32-bit 
MonitorPowerCaseMouse
LG 27MT93V Chieftec BPS-C2 850W LogicPower 9901 A4Tech R8 
  hide details  
Reply
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