Quote:
Originally Posted by Shadowspawn 
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(Moved this from top-level thread, I meant to post it in this thread, not to clutter the top of the forum). 
Been reading these board for a while, and have gotten a lot of good help and learning from them. Never had a question before, but now I do! This is a strange one, that I have not seen reported in this thread before.
I have a GA-Z77X-UD3H motherboard with an Arctic Cooling Freezer 7 Pro Rev. 2 CPU Cooler.
Everything normally works fine with the CPU cooler. It spins a bit when the BIOS loads, then stops. When I boot into Windows, it spins up and runs 900 - 1000 RPM (as reported by CPUID HWMonitor). All is normal, until I run PRIME95.
I go though the PRIME95 configuration, I pick "In-place large FFTs", and click start test.
The instant that the test starts running in earnest, the CPU fan stop spinning! The CPU begins to heat up, but the fan does not kick in.
Not only that, but HWMonitor can't find the fan any longer. It has completely disappeared off the HWMonitor display. Not just sitting there at 0 RPM. Gone!
If I stop the test and reboot the system, the fan is still gone. The fan does not spin, and HWMonitor cannot see it. Yet, the BIOS is OK starting up the system (I believe that the fan still twitches a bit when the BIOS initializes).
If I unplug the system and let it sit for a bit, the fan usually comes back to normal (spins up when Windows begins to load, idles at 900 - 1000 RPM).
This is really strange, has anyone ever seen anything like this? I'm afraid to play with it much more, because I'm afraid that I will permanently disable the CPU fan somehow.
Other relevant details:
Since installing the fan, I have re-flashed the BIOS (it had the latest non-Beta F11 BIOS both before and after this problem was noticed). I have cleared the CMOS, and loaded optimized defaults. The BIOS settings are mostly stock. Just changed Intel Turbo Boost to "enabled", set the memory XMP to "Profile1", and disabled Legacy USB Support.
The fan settings in the BIOS are "Auto" "Normal" (I also tried "PWM" "Normal" and "Voltage" "Normal"and the same thing happened).
I have double-checked that the 4-pin fan connector is well seated on the pins, multiple times.
The whole system looks like this:
* GA-Z77X-UD3H, F11 BIOS
* Arctic Cooling Freezer 7 Pro Rev. 2 CPU Cooler
* Intel I5 3750K
* G.SKILL 8GB (2 x 4GB) Ripjaws X Series DDR3 1600MHz
* 2x Western Digital 1 TB RE4 SATA 3 Gb in RAID 1 configuration, plugged into the Intel connectors
* Sapphire Radeon HD 7850 OC 2 GB
* SeaSonic X Series X650 Gold
* Uspeed PCI-E to USB 3.0 Internal Combo/ USB 3.0 Hub & USB 2.0 All-in-1 Card Reader
* Lite-On LightScribe 24X SATA DVD+/-RW Dual Layer Drive
* Linksys WMP600N PCI Wireless Adapter
* LCD Monitor plugged into the HDMI port on the Radeon card.
* Windows 7 SP1, 64-bit
Not running Speedfan, EZTune6, or anything like that.
I am running Intel Turbo Boost.
Does anyone have any suggestions or insights into this problem?
Thanks!
Been reading these board for a while, and have gotten a lot of good help and learning from them. Never had a question before, but now I do! This is a strange one, that I have not seen reported in this thread before.
I have a GA-Z77X-UD3H motherboard with an Arctic Cooling Freezer 7 Pro Rev. 2 CPU Cooler.
Everything normally works fine with the CPU cooler. It spins a bit when the BIOS loads, then stops. When I boot into Windows, it spins up and runs 900 - 1000 RPM (as reported by CPUID HWMonitor). All is normal, until I run PRIME95.
I go though the PRIME95 configuration, I pick "In-place large FFTs", and click start test.
The instant that the test starts running in earnest, the CPU fan stop spinning! The CPU begins to heat up, but the fan does not kick in.
Not only that, but HWMonitor can't find the fan any longer. It has completely disappeared off the HWMonitor display. Not just sitting there at 0 RPM. Gone!
If I stop the test and reboot the system, the fan is still gone. The fan does not spin, and HWMonitor cannot see it. Yet, the BIOS is OK starting up the system (I believe that the fan still twitches a bit when the BIOS initializes).
If I unplug the system and let it sit for a bit, the fan usually comes back to normal (spins up when Windows begins to load, idles at 900 - 1000 RPM).
This is really strange, has anyone ever seen anything like this? I'm afraid to play with it much more, because I'm afraid that I will permanently disable the CPU fan somehow.
Other relevant details:
Since installing the fan, I have re-flashed the BIOS (it had the latest non-Beta F11 BIOS both before and after this problem was noticed). I have cleared the CMOS, and loaded optimized defaults. The BIOS settings are mostly stock. Just changed Intel Turbo Boost to "enabled", set the memory XMP to "Profile1", and disabled Legacy USB Support.
The fan settings in the BIOS are "Auto" "Normal" (I also tried "PWM" "Normal" and "Voltage" "Normal"and the same thing happened).
I have double-checked that the 4-pin fan connector is well seated on the pins, multiple times.
The whole system looks like this:
* GA-Z77X-UD3H, F11 BIOS
* Arctic Cooling Freezer 7 Pro Rev. 2 CPU Cooler
* Intel I5 3750K
* G.SKILL 8GB (2 x 4GB) Ripjaws X Series DDR3 1600MHz
* 2x Western Digital 1 TB RE4 SATA 3 Gb in RAID 1 configuration, plugged into the Intel connectors
* Sapphire Radeon HD 7850 OC 2 GB
* SeaSonic X Series X650 Gold
* Uspeed PCI-E to USB 3.0 Internal Combo/ USB 3.0 Hub & USB 2.0 All-in-1 Card Reader
* Lite-On LightScribe 24X SATA DVD+/-RW Dual Layer Drive
* Linksys WMP600N PCI Wireless Adapter
* LCD Monitor plugged into the HDMI port on the Radeon card.
* Windows 7 SP1, 64-bit
Not running Speedfan, EZTune6, or anything like that.
I am running Intel Turbo Boost.
Does anyone have any suggestions or insights into this problem?
Thanks!
Well, you could try the latest beta F12g and see if that does it for ya. If not (your right, that is a weird problem) I would try using the stock cpu heat sink and see if you get the same behavior. If so, likely the board. If not, the aftermarket cpu cooler. Is the AF 7 new, or have you used it on previous system?
Edited by barkeater - 6/26/12 at 8:11am
New rig
(15 items) |
|
New rig
(15 items) |
Took 7 hours but i'm so relieved, just wish i could get the last 4 days back! One of my previous sticks must have been faulty as it appears to be working as it should now.
