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Thread: CPU temp at -79°C ??
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06-12-2017 04:51 AM #1
DanniV8 PC Specs Laptop (Model) Asus ROG Strix 15.6" GL553V Motherboard Asus Crosshair VI Hero Processor AMD Ryzen 1700 Memory (part number) CMK16GX4M2B3216 Graphics Card #1 Asus ROG Strix GTX1080 Sound Card Built in Monitor Samsung SyncMaster P2450 Storage #1 250GB Samsung 960 EVO NVMe M.2 ssd Storage #2 500gb Samsung 840 SSD CPU Cooler Corsair H75 Case Thermaltake Chaser A31 Power Supply Corsair AX750 Keyboard Logitech G15 Gen. 2 Mouse Logitech G402 Headset Sennheiser G4ME ONE Mouse Pad Steelseries OS Windows 10 Home 64 bit
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CPU temp at -79°C ??
So this has happened twice tonight.
I'm messing around in Fan Xpert4 and AIDA64. Doing stress tests and adjusting my fan profiles, when all of a sudden the CPU temp and Motherboard temp plummet to -79°C (CPU) and -70°C (Motherboard) and stay there until I've restarted the system.
PCH, GPU, CPU Diode and VRM temps all stay operating normally.
I have no idea what could cause this, but this messes with my fan profiles. I want to be able to trust that the fans will kick in if they will be needed to, but with the temp readings the profiles rely on are over 100°C off, they'll never start running.
Time from last reboot was less than 30 minutes when this happened this time.
Any ideas?
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06-12-2017 10:49 AM #2
sphinx64 PC Specs Motherboard C6H Processor Ryzen 1800x Memory (part number) Corsair Vengeance LED CMU16GX4M2C3200C16 8 GB DDR4 SDRAM X4 Graphics Card #1 ROG STRIX Radeon RX 480 Graphics (8 GB) Monitor Acer S271HL [27" LCD] (LUW0D0058530) Storage #1 Samsung SSD 960 EVO 512GB M.2 Storage #2 INTEL SSDSC2CW240A (240 GB) CPU Cooler Corsair H80 Case Cooler Master Storm Sniper Power Supply Corsair CMPSU-850HX Keyboard Logitech K360 Mouse Logitech M500 Headset/Speakers Logitech Z506 OS Win 10 Pro x64
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The symptoms you describe happens to me all the time. It is a bios bug I think.
But when the CPU temp goes down to -79ish on my system, I immediately OC to 5GHz as this cooling is way better than LN cooling and I am very happy indeed!
Just kidding
Try to be patient (as we are) to see if a new bios on Agesa 1.0.0.6 comes out (if comes out) to solve the problem (if solves).
Regards.
P.S And yes, whenever temp values hit (-), then my CPU fan drops to 300 (which you can adjust in bios by the way) and so I have to reboot every time this happens on a top notch mainboard.Last edited by sphinx64; 06-12-2017 at 11:27 AM.
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06-13-2017 04:30 AM #3
DanniV8 PC Specs Laptop (Model) Asus ROG Strix 15.6" GL553V Motherboard Asus Crosshair VI Hero Processor AMD Ryzen 1700 Memory (part number) CMK16GX4M2B3216 Graphics Card #1 Asus ROG Strix GTX1080 Sound Card Built in Monitor Samsung SyncMaster P2450 Storage #1 250GB Samsung 960 EVO NVMe M.2 ssd Storage #2 500gb Samsung 840 SSD CPU Cooler Corsair H75 Case Thermaltake Chaser A31 Power Supply Corsair AX750 Keyboard Logitech G15 Gen. 2 Mouse Logitech G402 Headset Sennheiser G4ME ONE Mouse Pad Steelseries OS Windows 10 Home 64 bit
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06-14-2017 08:47 AM #4
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the settings are becoming temporarily corrupted as both utilities are taking readings using the smbus. there seems to be a problem with it atm. imo
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06-15-2017 06:24 AM #5
PcZoneExtra PC Specs Motherboard Corsair hero 6 Processor Ryzen 1600x Graphics Card #1 Gtx 970 Sound Card Soundblaster z Monitor Hp 27xi Storage #1 Hyperx fury 240gb Storage #2 Toshiba hp 3TB CPU Cooler Thermaltake silent pro 12 Case Kolink punisher Power Supply Lc power 650w Keyboard Logitech g910 Mouse Zl50 sniper Headset Steelseries sibwria elite prism Mouse Pad Razer fireflay Headset/Speakers Logitech z5500 OS Win 10 x64 pro Network Router Huawei b315s
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07-18-2017 03:17 PM #6
DanniV8 PC Specs Laptop (Model) Asus ROG Strix 15.6" GL553V Motherboard Asus Crosshair VI Hero Processor AMD Ryzen 1700 Memory (part number) CMK16GX4M2B3216 Graphics Card #1 Asus ROG Strix GTX1080 Sound Card Built in Monitor Samsung SyncMaster P2450 Storage #1 250GB Samsung 960 EVO NVMe M.2 ssd Storage #2 500gb Samsung 840 SSD CPU Cooler Corsair H75 Case Thermaltake Chaser A31 Power Supply Corsair AX750 Keyboard Logitech G15 Gen. 2 Mouse Logitech G402 Headset Sennheiser G4ME ONE Mouse Pad Steelseries OS Windows 10 Home 64 bit
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Is there any fix for this? Not using AIDA64 for temp monitoring is not a fix IMO.
This is happening more frequently now and not always locking in at the same number. Last time for example it was -39°C.
It completely shuts down the Corsair water cooler, even the pump, when this happens. Running BIOS 1403.
This has gotten to a stage where I can't even trust my computer to stay on while I am away from it.
I'm seriously thinking about returning this motherboard and going back to Intel... this is becoming too much of a hazzle for me.
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07-18-2017 11:30 PM #7
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07-18-2017 11:53 PM #8
davemon50 PC Specs Laptop (Model) Asus G752VY-DH72 (17") and Asus G752VT-DH74 (17") Motherboard Asus ROG LGA2011-v3 Rampage V Edition 10, x99 EATX Processor Intel Core i7-6950X Extreme 10-core 25MB Cache 3.0 GHz Memory (part number) Corsair Vengeance LPX Red DDR4 DRAM 64GB-4x16 3333 (CMK64GX4M4B3333C16R) Graphics Card #1 Sapphire Nitro Radeon R9 Fury 4GB HBM Backplate Graphics Card #2 Sapphire Nitro Radeon R9 Fury 4GB HBM Backplate Sound Card Asus SupremeFX Hi-Fi Audio DAC Monitor (2) Dell UltraSharp U2515H 25-inch monitors Storage #1 (4) SSD's - Samsung 960 & 970 1TB M.2, Intel 535 480G, Intel 510 250G Storage #2 (3) HDD's - Western Digital Caviar Black 2TB 3.5-in SATA III 64MB Cache CPU Cooler Corsair Hydro Series H80 Case Corsair Obsidian Series 650D Black, ATX, Mid Tower Power Supply Corsair Digital AXi-Series AX1200i (1200W) 80+ Platinum Rating Keyboard Logitech Wireless K360 Mouse Logitech Wireless MX Anywhere 2 Headset HyperX Cloud II OS Windows 10 Pro 64-Bit
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Perhaps a RELATED ISSUE ? This user had to reinstall the Asus software.
Davemon50
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07-19-2017 02:53 AM #9
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Debugging this at the moment. It's a third party software causing corruption due to simultaneous access. They're not liable for the resulting issue, but we are. Quite a bad situation for us. Can you try with HWInfo instead?
Last edited by elmor; 07-22-2017 at 08:25 AM.
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07-19-2017 06:52 AM #10
supertrekie PC Specs Motherboard ASUS CROSSHAIR HERO VI Processor AMD RYZEN R7 1800X @ 4GHZ Memory (part number) GSKILL FLARE-X 3200MHZ Graphics Card #1 NVIDIA GTX 980ti HYBRID Sound Card CREATIVE 1212M Monitor ASUS PB278Q Storage #1 SAMSUNG 960 EVO 500GB Storage #2 x4 4TB Seagate ST4000DM000 CPU Cooler CM NEPTON 280L Case FRACTAL - DEFINE XL R2 Power Supply ANTEC 750W Mouse LOGITECH G600 Headset/Speakers ULTRASONE PRO 750 + LITTLE DOTI+ AMP OS WINDOWS 10 Network Router PFSENSE
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I have this problem in conjunction with random fans and the AIO headers failing, reporting 0 rpm, or going full blast at random times. I use AIDA64 ... if I stop using it completely does this issue disappear?
I worry about disabling AIDA64 because I wont get a warning my system lost fans or the pump and it will reach the temp threshold.