Hello All -
I am building a new machine and having issues with it freezing up in windows (both 7 and 8.1)
The machine will run well for a while, then suddenly begin to freeze up. Mouse moves fine, but applications (browser, Intel XTU, etc) will freeze up and report “Not Responding”. Some seconds/minutes later, it will continue. Same goes for simple tasks such as opening Control Panel or shutting down the machine: once it begins to freeze up, it does so until reset. Using Intel XTU, I can see that CPU utilization and heat is minimal during these freezes
What I have done to troubleshoot:
- Update BIOS to latest rev from ASROCK
- Run memtest and confirmed by DRAM is good (3 clean runs)
- Ran Intel Processor Diagnostic Tool- Processor passes
- Swapped back and forth between GTX550 and OnBoard graphics – no effect
- Windows has been installed 4 times on the machine (1xWin7, 3xWin8.1) with various changes each time to make certain this wasn't a driver issue.
The only thing that may have gone wrong with the build was an early mishap with the stock cooler. One of the feet popped loose sometime during the early runs. I discovered this when the heat was higher than expected for idle system and was quickly rising to 95+ and throttling.
Following a thread addressing i7 4790k heat issues, I began tweaking Power and CPU Core Voltage.
Changing default CPU Core Voltage / Offset Voltage: This seemed like it may be promising. When I upped the core voltage, the system seemed to be a bit more stable. However, I am using the stock CPU cooler (while waiting on my DH14) and raising the Core Voltage was causing me to go into thermal throttling during Intel XTU stress and benchmark tests. I spent hours tweaking and thought I was good with a 1.28 Core Voltage, Adaptive Mode (helped with heat) and a 50mV Offset. Let the system run (idle) overnight and was back to the freeze state this AM.
The new heatsink arrives today and will improve the heat issue, but I should not be running into these issues on a generally idle system.
I have built many machines. This is my first foray into a high-end machine which I planned to overclock.
Does anyone have any suggestions? Could I have a damaged CPU/MB due to heat?
I am building a new machine and having issues with it freezing up in windows (both 7 and 8.1)
The machine will run well for a while, then suddenly begin to freeze up. Mouse moves fine, but applications (browser, Intel XTU, etc) will freeze up and report “Not Responding”. Some seconds/minutes later, it will continue. Same goes for simple tasks such as opening Control Panel or shutting down the machine: once it begins to freeze up, it does so until reset. Using Intel XTU, I can see that CPU utilization and heat is minimal during these freezes
Mobo: ASRock Z97 Extreme4 LGA 1150
UEFI Verion Z97 Extreme4 P2.00
Chip: Intel Core i7-4790k 4.0GHz LGA 1150
RAID 5 Using Intel Rapid Storage Configured in UEFI BIOS
HD1,HD2: 1.5TB WD15EADS SATA3 Green
HD3,HD4: 1TB WD10EZRX SATA6 Green
DRAM: XMP (2 x 8GB) DDR3 1600
PSU - Cooler Master 650w
Graphics: NVIDIA GTX550ti / OnBoard Intel HD 4600
DVD BluRay: LG Model ???
What I have done to troubleshoot:
- Update BIOS to latest rev from ASROCK
- Run memtest and confirmed by DRAM is good (3 clean runs)
- Ran Intel Processor Diagnostic Tool- Processor passes
- Swapped back and forth between GTX550 and OnBoard graphics – no effect
- Windows has been installed 4 times on the machine (1xWin7, 3xWin8.1) with various changes each time to make certain this wasn't a driver issue.
The only thing that may have gone wrong with the build was an early mishap with the stock cooler. One of the feet popped loose sometime during the early runs. I discovered this when the heat was higher than expected for idle system and was quickly rising to 95+ and throttling.
Following a thread addressing i7 4790k heat issues, I began tweaking Power and CPU Core Voltage.
Changing default CPU Core Voltage / Offset Voltage: This seemed like it may be promising. When I upped the core voltage, the system seemed to be a bit more stable. However, I am using the stock CPU cooler (while waiting on my DH14) and raising the Core Voltage was causing me to go into thermal throttling during Intel XTU stress and benchmark tests. I spent hours tweaking and thought I was good with a 1.28 Core Voltage, Adaptive Mode (helped with heat) and a 50mV Offset. Let the system run (idle) overnight and was back to the freeze state this AM.
The new heatsink arrives today and will improve the heat issue, but I should not be running into these issues on a generally idle system.
I have built many machines. This is my first foray into a high-end machine which I planned to overclock.
Does anyone have any suggestions? Could I have a damaged CPU/MB due to heat?
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