This post/Thread is in response to another post, that deals with PC overheating issues and such.

SpeedFan is a FREE Windows utility that monitors fan speeds, temperatures and voltages in computers with hardware monitoring chips. SpeedFan can even access S.M.A.R.T. info for those hards disks that support this feature and show hard disk temperatures too, if supported.

At the lowest level, SpeedFan is a hardware monitoring software, but its main feature is that it can control the speed of the fans (depending on your sensor chip) according to the temperatures inside your pc, thus reducing noise and power consumption.

If you need a tool that can change your computer's fan speeds, read the temperatures of your motherboard and your hard disk, read voltages and fan speeds and check the status of your hard disk using S.M.A.R.T. or SCSI attributes, then this is the utility for you.

It is fully configurable and you can create custom events to handle every situation in an automated way.

SpeedFan works under Windows 9x, ME, NT, 2000, 2003, XP and Vista. SpeedFan works fine on Vista 64 bit too. The relevant driver is fully digitally signed. And this all costs you absolutely nothing!


SpeedFan has been fully tested and currently used by City Computer Service as a diagnistic tool .

I used to use speedfan for temperature monitoring, but I'd recommend coretemp over speedfan if the interest is in accurate temperature reporting--it reports the temperatures more accurtely because speefan reports the temperature of the socket, whereas coretemp reports the actual temperature of the CPU core(s)--which is why in most cases coretemp reports higher temps than speedfan because the temp at the socket is cooler than the temp of the core itself. Also, speedfan isn't very good for multi-core temperature reporting as it only reports the temp of one of the cores--coretemp reports the temperature of each core.

However, coretemp lacks the other features of speedfan such as optional fan control if the motherboard supports it. The logging features of speedfan are also quite useful.

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AMD Athlon 64 X2 4400+ (@2.6 GHz)
2x1GB OCZ Spec. Ops. PC3200
ASRock Dual939-SATA2
Antec TruePower 550 watt PSU
80 GB Seagate Barracuda SATA 7200 rpm
300 GB Seagate Barracuda SATA 7200 rpm
120 GB Maxtor ATA/133 7200 rpm
ATI Radeon x1950 Pro

I believe I had just pointed this out

in my original post that is underlined. Can you see it? Well if not, here it is again:

I was just keeping in mind those of us that have dual-core computers, which are quite a few people, that speedfan doesn't report the temperature of both cores, and also doesn't report the core temp as accurately as coretemp. I know what you said in your post, and I don't think you mentioned the useful logging abilities of speedfan, only that it displays motherboard/CPU/HD/fan readings. Logging is useful if you want to do something like monitor system temps while playing games/benchmarking where you can't continuously look at the speedfan display.

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AMD Athlon 64 X2 4400+ (@2.6 GHz)
2x1GB OCZ Spec. Ops. PC3200
ASRock Dual939-SATA2
Antec TruePower 550 watt PSU
80 GB Seagate Barracuda SATA 7200 rpm
300 GB Seagate Barracuda SATA 7200 rpm
120 GB Maxtor ATA/133 7200 rpm
ATI Radeon x1950 Pro

i have this program on my puter, even though i didn't read about it on this forum. its a good app. really helps to put your mind at ease if you are constantly worried about your temps while your playing games n stuff

It only detected my hard drive nothing else. Why does it not detect the cpu?

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It could be down to the fact that it's not compatible with your BIOS and/or temperature sensors. Keep downloading updates though to see if your system is made compatible

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Where do you download the updates?

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Just keep checking the site for any newer versions

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Thanks,
Ash
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I'll mirror SpeedFan version 4.32 locally, and update the post (below) with a link to their site AND the mirror download.

It's great! it works for my 64 bit windows vista!

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