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#1
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SMART Hard Drive Temperatures
I've always been concerned about the temperatures being reported by
SMART monitoring utilities I've used. I even ended up taking the side of my case off and sticking some massive fans to the side to blow air on the hard drives. This allowed me to put the PSU outside of the case, too, as it was half an inch away from the CPU fan. I recently decided to remove the large fans I'd added, because the whole system was making one hell of a racket! So, having put the PSU back in, and removing the extra fans, the CPU now runs about 10 degrees cooler, and the hard drives about 20 degrees hotter. Now I'm getting temperature readings of 47-50 degrees C for the primary hard drive, and about 40 C for the secondary hard drive. This seems way too hot, especially when the CPU is at 45 C most of the time! I have read that the SMART temperature is usually taken from the controller chip, which is the hottest part of the hard drive, and also that the maximum operating temperature on the spec. sheet is probably referring the ambient temperature (ie, not the temperature of the drive itself.) Should I be worried? The hard drives feel fairly warm, but not scorchingly hot... |
#2
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Silver Blade wrote:
I've always been concerned about the temperatures being reported by SMART monitoring utilities I've used. I even ended up taking the side of my case off and sticking some massive fans to the side to blow air on the hard drives. This allowed me to put the PSU outside of the case, too, as it was half an inch away from the CPU fan. I recently decided to remove the large fans I'd added, because the whole system was making one hell of a racket! So, having put the PSU back in, and removing the extra fans, the CPU now runs about 10 degrees cooler, and the hard drives about 20 degrees hotter. Now I'm getting temperature readings of 47-50 degrees C for the primary hard drive, and about 40 C for the secondary hard drive. This seems way too hot, especially when the CPU is at 45 C most of the time! I have read that the SMART temperature is usually taken from the controller chip, which is the hottest part of the hard drive, and also that the maximum operating temperature on the spec. sheet is probably referring the ambient temperature (ie, not the temperature of the drive itself.) Should I be worried? The hard drives feel fairly warm, but not scorchingly hot... In a quick look at hard drive specs, maximum operating temperature is speced at 50-55°C by most makers. I do not know if this is ambient temperature or via the diode on the hard drive. My guess is it's the latter. 55°C ambient seems way too high. I'd replace those fans or substitute them with quieter versions. Taking the sides off the case is a last resort and is actually counter productive, since unidirectional airflow is made impossible. -- If you pick up a starving dog and make him prosperous, he will not bite you. This is the principle difference between a dog and a man. -Samuel L. Clemens |
#4
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Ken wrote in message . ..
On 2 Jul 2003 05:58:27 -0700, (Silver Blade) wrote: I've always been concerned about the temperatures being reported by SMART monitoring utilities I've used. I got 2 Hard Drives, one IBM 120GXP (80GB) and a Seagate Barracuda V 120GB (both 7200 rpm) and with 23 degrees Celsius room temperature the IBM is 29-32 degrees and the Seagate 30-33 degrees. I got one 80mm fan in the front of the case running on 7 volts blowing right on the HDD:s. Works perfect for me, very quiet. Example http://w1.857.telia.com/~u85710476/d...ple/pcvent.png But where are these temperatures taken from? My IBM drive runs at about 40 degrees most of the time - roughly 10 degrees more than yours. Adding fans is not an option for me, since I want my PC to be as silent as possible. Plus, it seems if I add more fans, the CPU temperature rises. I've thought about the possibility of insalling some slow large fans, but have only one place for a fan to go. Besides, I'm thinking of saving that for if I ever get round to making a cabinet to go round the computer case - just for some airflow I might stick a couple of fans at the bottom/back to pull cool air in while the hot air rises out of a vent at the back, perhaps. -SB |
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