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IDProjectCategoryView StatusDate SubmittedLast Update
0002467SpeedFanLogging and chartingpublic2015-12-05 17:092019-03-21 09:49
Assigned Toalfredo 
PlatformIntel Core i7-3820OSWindows 7 64-bitOS Version7
Product Version4.51 
Target VersionFixed in Version 
Summary0002467: sometimes get corrupted/compressed data graph after playing computer games
DescriptionThis just started happening recently, perhaps after I installed a Samsung 950 Pro SSD (it is *not* my boot drive, just for gaming). After I exit from a game (tested with Fallout 4 and Divinity: Original Sin EE), then display the graph to review system temperatures. For a moment the graph displays normally, then switches to a "scrunched" view as shown in the accompanying image. Once graph is corrupted like this, it does not recover until program is closed and re-opened.

Steps To Reproduce> start SpeedFan
> on Charts page, enable all 9 sensors for graphing
  Display is initially normal, except that the HD2 (Samsung SSD) line usually does not draw all the way across the graph like the others do
> start Fallout 4 and play for awhile
> close the game, Restore SpeedFan, which is set to Charts page;
graph will momentarily be normal, then will flash and show the corrupted display.
Additional InformationSystem data shown by SpeedFan:
Win9x:NO 64Bit:YES GiveIO:NO SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Linked Intel Patsburg SMBUS at $F000
Found nVidia GeForce GTX 970
Linked nVidiaI2C0 SMBUS at $3D403E3F
Linked nVidiaI2C1 SMBUS at $3D403637
Linked nVidiaI2C2 SMBUS at $3D405051
Scanning ISA BUS at $0290...
SuperIO Chip=IT8728F
Linked ISA BUS at $0A30
Scanning Intel SMBus at $F000...
Scanning I2CNVidia SMBus at $3D403E3F...
Scanning I2CNVidia SMBus at $3D403637...
Scanning I2CNVidia SMBus at $3D405051...
Scanning ISA BUS at $0A30...
IT8728F found on ISA at $A30
Found SCSI drive WDC WD2003FZEX-0 (2000.4GB)
ProbeSCSI: WARNING: hard disk skipped because of invalid returned LogSense data
Found SCSI drive Samsung SSD 950 (512.1GB)
Found Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz
End of detection
Loaded 0 events
TagsNo tags attached.
Motherboard ModelGIGABYTE X79-UP4 - overclocked to 4GHz
Video Card ModelGeForce GTX 970
Attached Filesjpg file icon speedfan.graph.glitches.jpg [^] (59,311 bytes) 2015-12-05 17:09

- Relationships

-  Notes
Gorlash (reporter)
2016-01-10 04:29

I figured out what caused this, and how to resolve it, though it is still a bug.

I had installed a Samsung 950 Pro SSD, 512 GB on my machine. It is connected via a PCIe M.2 adapter card. I installed the Microsoft NVMe drivers for Windows 7 (which I am using). The card works wonderfully, and provides nearly RAM-level speeds!!

However, it was shortly after I installed that drive, that SpeedFan 4.51 began exhibiting this issue. So I went to the graphing page, and I de-selected HD2 (the new SSD). This action appears to have solved the problem. Since I'm not especially worried about temperatures on this SSD, this solution is adequate for my purposes, and resolves this issue for me.

However, wanted to let the maintainer know about it, as it might be useful in debugging the issue, and it may come up again, since this drive is so popular.
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- Issue History
Date Modified Username Field Change
2015-12-05 17:09 Gorlash New Issue
2015-12-05 17:09 Gorlash Status new => assigned
2015-12-05 17:09 Gorlash Assigned To => alfredo
2015-12-05 17:09 Gorlash File Added: speedfan.graph.glitches.jpg
2016-01-10 04:29 Gorlash Note Added: 0007949
2018-12-27 06:42 Thanos Note Added: 0008732
2019-01-16 08:31 alizeynoshay Note Added: 0008806
2019-01-16 09:23 karenminton Note Added: 0008807
2019-01-21 04:45 Robert1122 Note Added: 0008817
2019-03-12 07:06 smithkaylee525 Note Added: 0008998
2019-03-12 08:23 chauhanmandis Note Added: 0008999
2019-03-12 13:21 angelina Note Added: 0009003
2019-03-19 09:29 marcellus7889 Note Added: 0009082
2019-03-21 09:49 marcellus7889 Note Added: 0009091

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