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Old 03-09-2010, 09:22 PM   #1
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Default Temperature Alarm Went Off - Lucky Story

So after I installed my new DVD drive, I closed up my computer and turned it on. I started to play Battlefield: Bad Company 2 (My graphics are set to max except AA, which is 2x and AF which is 8x).

About half an hour into the game, my temperature sensor's alarm went off and could be heard from downstairs on the other side of my house. I looked at the monitor and it said it was over 70C (158 F)!!! I immediately switched my PC off and checked why it was overheating. Turns out the diode thing was stuck in my GPU fan.

Thank god for alarms. Just saved my GPU!!!
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Old 03-09-2010, 10:17 PM   #2
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Default Re: Temperature Alarm Went Off - Lucky Story

Wait, what diode thing?
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Old 03-09-2010, 10:43 PM   #3
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Default Re: Temperature Alarm Went Off - Lucky Story

My sensor is some orange plastic wrapped connector thing. It looks like 2 wires almost touching each other coated in orange plastic.

Kinda like this but coated with the orange plastic.
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Old 03-09-2010, 11:15 PM   #4
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Default Re: Temperature Alarm Went Off - Lucky Story

Oh boy, you got to watch where you wired them! I did mod my GTX260 with silver paste, but ran out...turns out I've used thermal paste...I've screwed it up. The GPUs fine, but I have to redo it over again...temps go to 85C! I definatelly don't like that temp!
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Old 03-10-2010, 12:53 AM   #5
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Default Re: Temperature Alarm Went Off - Lucky Story

Killed my 8800GTS 320MB not long ago due to improper heatsink installation. It was all over before I could do anything about it.
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Old 03-10-2010, 01:02 AM   #6
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Default Re: Temperature Alarm Went Off - Lucky Story

Quote:
Originally Posted by Lennox View Post
So after I installed my new DVD drive, I closed up my computer and turned it on. I started to play Battlefield: Bad Company 2 (My graphics are set to max except AA, which is 2x and AF which is 8x).

About half an hour into the game, my temperature sensor's alarm went off and could be heard from downstairs on the other side of my house. I looked at the monitor and it said it was over 70C (158 F)!!! I immediately switched my PC off and checked why it was overheating. Turns out the diode thing was stuck in my GPU fan.

Thank god for alarms. Just saved my GPU!!!
if your gpu was 70 that is hardly alarming (pardon the pun), they can run much hotter than cpus, and 70 isn't all that harmful for a cpu either, although at those temps the cpu cores were probably in the 90s and about to shut down anyway...
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Old 03-10-2010, 04:11 PM   #7
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Default Re: Temperature Alarm Went Off - Lucky Story

Quote:
Originally Posted by Lennox View Post
My sensor is some orange plastic wrapped connector thing. It looks like 2 wires almost touching each other coated in orange plastic.

Kinda like this but coated with the orange plastic.
Oh, that's not a sensor, that's just a zener diode. It allows voltage to travel in one direction only, if the voltage reaches a certain point. I would guess that when the temp sensor hits a voltage, it passes through the diode, and trips your alarm?
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Old 03-11-2010, 12:52 AM   #8
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Default Re: Temperature Alarm Went Off - Lucky Story

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Originally Posted by GibsonSGKing View Post
Oh, that's not a sensor, that's just a zener diode. It allows voltage to travel in one direction only, if the voltage reaches a certain point. I would guess that when the temp sensor hits a voltage, it passes through the diode, and trips your alarm?
if it matters, Zeners clamp a Vout to a certain set voltage level.
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Old 03-11-2010, 07:31 PM   #9
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Default Re: Temperature Alarm Went Off - Lucky Story

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Originally Posted by sniperviper21 View Post
if it matters, Zeners clamp a Vout to a certain set voltage level.
I'm pretty sure there are 2 different types, maybe we're thinking of different ones? Admittedly, it's been a while since I've dealt with this stuff, so I may very well be slightly wrong
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Old 03-12-2010, 01:13 AM   #10
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Default Re: Temperature Alarm Went Off - Lucky Story

By contrast with the conventional device, a reverse-biased Zener diode will exhibit a controlled breakdown and allow the current to keep the voltage across the Zener diode at the Zener voltage. For example, a diode with a Zener breakdown voltage of 3.2 V will exhibit a voltage drop of 3.2 V on the Vout if reverse bias voltage applied across it is more than its Zener voltage. The Zener diode is therefore ideal for applications such as the generation of a reference voltage
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