mobo refuse to POST

sho95

New Member
After the fan retaining clip broke on the mobo it cause cpu overheat. My friend try to restarted way to many time to see why his pc was turning off and I'm thinking that this damage the cpu. But I installed a new retaining clip and now the darn thing won't POST. Could the overheat cause the mobo to brake?
 
Uh..okay this is how i burnt out my old mobo & cpu..i turned it on and off like 20 times in 1 minute trying to fix my psu's screeching sound and then my computer just stopped running.Thought it was the mobo,then i found it was both the mobo and the cpu...you might be looking at something thats dead,and the overheating could of caused some damage to the motherboard yes.
 
When a large fan quite on a sink here the cpu reached max temp after running for several hours. It was when spotting the temp when a game crashed a look inside was when the dead fan was spotted. A month later the board itself acted up where you could no longer run the cpu and memory at the normal setings. Upon seeing the high temp it was shutdown right away and saw the problems begin later to having stressed the board out too.

Once you realize there is a problem shut it down immediately and leave it off until it cools down for some time and you have an idea of what the problem is or could be. On your friend's system the overheat protection circuit was doing just that to prevent damage to both board and cpu. But the repeated attempts to keep it running made matters worse.
 
Blah blah blah.

It takes 6 seconds to burn out an unprotected AMD CPU from power up. If you tried to run it without a fan, it's more than likely dead. That's what it sounds like anyways. You'll have to buy yourself a new one.
 
"Blah blah blah." Is that your new user name? :rolleyes:

When the fan quite here the cpu was unprotected for sure when seeing the max temp of 85C where shutting everything down immediately saved the cpu itself. Unfortunately the board caught the brunt of that when it acted up a month later. If I set up the cpu on another board it would still run. But that was also on an older model cpu with a higher threshold(ahaa). Even on a newer model it takes longer then 6 seconds to reach the desktop. But I won't advise ever trying it.(zing! :eek: $$$$ zap! :eek: $$$$ pop! :eek: $$$$ boing!....)
 
Did you have a heatsink on it? Yes. That dissipates the heat from the CPU so your example doesn't apply.

No heatsink OR fan on a chip (because his clip was broken) and the CPU fries. That's all there is to it.
 
Once the cpu went past the max and overheated that was all it took to fry the cpu itself. But the repeated tries at keeping the system running at the high temps by restarting it immediately after shutdown finished the board off.

The thermal compound on the sink there turned out to be worthless when the fan quit. It was still like wet tooth paste even after running it for months. The stock thermal pad had already gone on it months earlier and the cpu still managed to survive. The 85C :eek: !seen after running the system for several hours failed to cook it then. Then the next misery came up. :confused:

When installing the first Zalman cooler there was no AS5 onhand. :( So the rush out to the local pc accessories section saw... Antec thermal paste? You should heard the line the clerk said when asking if they carried AS5. "Yes that's AS5 just Antec puts their own name on it." Bird dropping! :mad:! The temps with that stuff ran into the high 50s argh! Finally the current Zalman with AS5 was a little too late for the last board.(daa da daaaa daa da daaa... )
 
After the fan retaining clip broke on the mobo it cause cpu overheat. My friend try to restarted way to many time to see why his pc was turning off and I'm thinking that this damage the cpu. But I installed a new retaining clip and now the darn thing won't POST. Could the overheat cause the mobo to brake?
What kind of hardware are we dealing with?
Questions 101

When a large fan quite on a sink here the cpu reached max temp after running for several hours. It was when spotting the temp when a game crashed a look inside was when the dead fan was spotted. A month later the board itself acted up where you could no longer run the cpu and memory at the normal setings. Upon seeing the high temp it was shutdown right away and saw the problems begin later to having stressed the board out too.
Hehe grammar much? ;)

It takes 6 seconds to burn out an unprotected AMD CPU from power up
Funny, cuz Im testing that right bloody now. And I sure as hell get past 6 seconds (get to about 12 seconds before the mobo cuts out the way its supposed to) :)

"Blah blah blah." Is that your new user name?
This had better be the last time i see this kind of crap.

When the fan quite here the cpu was unprotected for sure when seeing the max temp of 85C where shutting everything down immediately saved the cpu itself. Unfortunately the board caught the brunt of that when it acted up a month later. If I set up the cpu on another board it would still run. But that was also on an older model cpu with a higher threshold(ahaa). Even on a newer model it takes longer then 6 seconds to reach the desktop
Although CPU temp and NB/PWM temp are related, having a CPU at 85C does not necesarily mean the mobo is in lethal temp range -- and since the cpu is radiating 90% of it's heat away from the mobo the CPU cant directly (unless stupidity a la THG enter the picture) damage the board -- now if you're board is running at lethal temp then you've over volted your board -- for which there were plenty warnings about.

No heatsink OR fan on a chip (because his clip was broken) and the CPU fries. That's all there is to it.
Actually it only fries if the thermal diode fails ... same deal with Intel chips (although granted the diode is FAR more difficult to fail). And yes I'm testing without a heatsink (XP1700 and XP2100 -- them hugeass .18 chips too)

When installing the first Zalman cooler there was no AS5 onhand. So the rush out to the local pc accessories section saw... Antec thermal paste? You should heard the line the clerk said when asking if they carried AS5. "Yes that's AS5 just Antec puts their own name on it." Bird dropping! ! The temps with that stuff ran into the high 50s argh! Finally the current Zalman with AS5 was a little too late for the last board.(daa da daaaa daa da daaa... )
And the Zalman didnt come with it's own (fairly high quality) TIM? ;) Oh btw, Antec TIM is rebagged AS5.
Antec Silver Thermal Compound said:
Made with 99.9% pure micronized silver
88% silver content by weight
Extended temperature limits: -50°C to 180°C
Thermal Conductivity: >350,000 W/m°C
Thermal Resistance:<0.0045°C-in/W

Arctic Silver 5 Thermal Paste said:
Arctic Silver 5 contains over 88% thermally Conductive filler by weight
Contains 99.9% pure silver:
Thermal Conductance: >350,000W/m2 °C (0.001 inch layer)
Thermal Resistance: <0.0045°C-in2/Watt (0.001 inch layer)
Average Particle Size: <0.49 microns <0.000020 inch
Extended Temperature Limits: Peak: –50°C to >180°C Long-Term: –50°C to 130°C


In any bloody case, lets cease hijacking this thread lest Praetor have a power trip.
 
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