Simviation Forum - Overheat Damage

Sep 25^th, 2004 at 7:47pm

Scorpiоn Offline
Colonel
Take it easy!
The Alamo

Gender:
Posts: 4496

Some of you may recall the CPU frying itself awhile back in my PC, and I replaced the CPU today. However, I switched the power on and nothing.

Hopelessly feeling powerless. Cry

I suspect the CPU damaged the motherboard when it went kablooie. Any other ideas?

The Devil's Advocate.&&

Back to top

IP Logged

Reply #1 - Sep 25^th, 2004 at 11:40pm

TWA800 Offline
Colonel
Cessna 185
Fairbanks Alaska

Gender:
Posts: 14

I'm sorry to hear about your cpu and possibly the motherboard...If you get absolutely nothing... no power on self test (POST) then maybe the problem is in the power supply. The processor won't get any power until the POST checks for stability and proper voltage. Do PS's come with fuses or breakers? Just a thought...

sys specs:&&Gigabyte 7NNXP MoBo&&AMD XP 3000+ CPU&&1.5 MB GeIL PC3200 RAM&&Gigabyte nVidia Gforce 6800GT GC

Back to top

IP Logged

Reply #2 - Sep 26^th, 2004 at 1:28am

Scorpiоn Offline
Colonel
Take it easy!
The Alamo

Gender:
Posts: 4496

It is not the PSU.

600 watts.

The Devil's Advocate.&&

Back to top

IP Logged

Reply #3 - Sep 26^th, 2004 at 3:22am

JRoc Offline
Colonel
Town Drunk
CYVR/CYQR/CYMJ/CYXE (nomad!)

Gender:
Posts: 410

'Tis possible that the mobo went due to the heat. Could've melted the socket or something like that.

Back to top

IP Logged

Reply #4 - Sep 26^th, 2004 at 11:02am

JBaymore Offline
Global Moderator
Under the curse of the
hombuilt cockpit!

Gender:
Posts: 10261

How did you KNOW that it was the CPU in the first place?

As to the power supply........ did you put a multimeter on the various outputs to see if they are indicating the correct voltage? Of course, that would not tell you if the voltage is correct under load conditions.... but it is a start.

best,

.................john

Intel i7 960 quad 3.2G LGA 1366, Asus P6X58D Premium, 750W Corsair, 6 gig 1600 DDR3, Spinpoint 1TB 7200 HD, Caviar 500G 7200 HD, GTX275 1280M, Logitec Z640, Win7 Pro 64b, CH Products yoke, pedals + throttle quad, simpit

Back to top

IP Logged

Reply #5 - Sep 26^th, 2004 at 12:21pm

Scorpiоn Offline
Colonel
Take it easy!
The Alamo

Gender:
Posts: 4496

Because a small wisp of smoke came right out of the CPU fan. Embarrassed

I'll use some of my dad's tools to see if it really is the PSU. He has this strange thingy, where you put whatever you're measuring in between two pincers and it'll tell you the output.

Can a CPU really damage other parts of the PC when it goes out? Like the PSU or the graphics?

The Devil's Advocate.&&

Back to top

IP Logged

Reply #6 - Sep 26^th, 2004 at 2:08pm

JBaymore Offline
Global Moderator
Under the curse of the
hombuilt cockpit!

Gender:
Posts: 10261

Quote:

Because a small wisp of smoke came right out of the CPU fan. Embarrassed

Well that is a pretty good indication you likely fried it, I'd say. Grin

However......... there are other considerations here.... see below.

Quote:

I'll use some of my dad's tools to see if it really is the PSU. He has this strange thingy, where you put whatever you're measuring in between two pincers and it'll tell you the output.

Not sure, but I think you are describing a multimeter there. Wink

You need to know the exact voltages (under no load) that your power supply is supposed to put out. You might have to look that up. Make sure you set the scales correctly if it is not a self-scaling uint.

Also... be careful poking around in the case. Make sure you are well grounded... or you can do more damage fast. And be careful of using the continuity tester function..... it supplies voltage to test the circuit. Don;t want to put that to the wrong place.

Quote:

Can a CPU really damage other parts of the PC when it goes out? Like the PSU or the graphics?

Welll.... you are making a big assumption here. Wink

The puff of smoke from the CPU may heve been the RESULT of another component "going west", not the cause of it. Chicken and egg problem. The car crashed and that is a big problem with all the bodywork bent and destroyed.... but the CAUSE of the crash was the blowout on the left front tire. Fixing the metalwork crash damage doesn't address the shot tire.

Simplest example I can think of here would be is a voltage regulator in the power supply decided to "give up the ghost"........ and sent significant overvoltage to the core supply of the CPU. Smokesville!

And yes... it could also happen that the CPU going bad could send an inappropriate amount of current or voltage to another component that causes IT to also go bad.

Hard to figure out which is which sometimes. Is the headache just a headache.... or a brain tumor? If you are a trained doctor....... you know how to find out. Lacking that training............ Roll Eyes

This stuff can be far more complicated that it seems at first.

Unfortunately, it seem that most "technicians" working on computers today are maybe better described as "card replacers" than "soldering iron jockeys". Not too much repair is done at the component level anymore. Circuits are getting too complicated... and much is reduced to microchips which by their very nature are not really "repairable" in and of themselves.

So a "repair" these days might consist of putting in a whole new power supply.... rather than replacing the component (say a filter capacitor) in the supply that blew.... and would only cost $0.50 or less to buy. If the person knew how to troubleshoot at the component level, it would only take a few minutes to diagnose, identify, and replace. But then again........ with computer labor running in the $100 per hour range.... and most new power supplys likely being less than that one hour minimum charge ....... stuff just gets thrown out. What a waste.

Anyway.... my ham radio "soldering iron jockey" background is showing Wink

.

best,

.......................john

Intel i7 960 quad 3.2G LGA 1366, Asus P6X58D Premium, 750W Corsair, 6 gig 1600 DDR3, Spinpoint 1TB 7200 HD, Caviar 500G 7200 HD, GTX275 1280M, Logitec Z640, Win7 Pro 64b, CH Products yoke, pedals + throttle quad, simpit

Back to top

IP Logged

Reply #7 - Sep 26^th, 2004 at 2:31pm

Scorpiоn Offline
Colonel
Take it easy!
The Alamo

Gender:
Posts: 4496

Drats. Experience is the key. Embarrassed

That's a new concept. Roll Eyes

Ah well. I guess I'll just have to carefully poke around and see what comes of it. Is there any real way to see if, say, a graphics card or a stick o' RAM is damaged?

The Devil's Advocate.&&

Back to top

IP Logged

Reply #8 - Sep 26^th, 2004 at 2:59pm

Ivan Offline
Colonel
No, I'm NOT Russian, I
only like Russian aircraft
The netherlands

Gender:
Posts: 6058

PSU: 12v, 3,3v and 5v output... the difference is in the available load.

You need to do a trick with some of the connector pins to get the PSU to switch from standby to running mode, or you will only find the 5v standby power

Russian planes: IL-76 (all standard length ones), Tu-154 and Il-62, Tu-134 and An-24RV&&&&AI flightplans and repaints can be found here

Back to top

IP Logged

Reply #9 - Sep 26^th, 2004 at 3:18pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Quote:

.....I'll use some of my dad's tools to see if it really is the PSU. He has this strange thingy, where you put whatever you're measuring in between two pincers and it'll tell you the output....

After reading this so far, I would recommend that you let your Dad loose on it with his multimeter...
He obviously knows what he's doing... Wink

...!
...trust him... Grin

...!

LOL..LOL...LOL...!

Cheers Scorp...!

Paul.

P.S. I've got one those "thingies with the pincers", and they are worth their weight in gold when you are an ELECTRICIAN!.... Grin

...!
LOL...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

Back to top

IP Logged

Reply #10 - Sep 26^th, 2004 at 3:34pm

JBaymore Offline
Global Moderator
Under the curse of the
hombuilt cockpit!

Gender:
Posts: 10261

Good Point Fozzer!

In fact.... we should probably mention her that inside that case ,....... although it is not easy to find.... can be some voltages that could be lethal.

So be caredul there Scorpion. MOST stuff in the case is low voltages.... but the power supply "inner workings" is another story.

You really probably don't want to go poking around inside the PS box. Wink

best,

...................john

Intel i7 960 quad 3.2G LGA 1366, Asus P6X58D Premium, 750W Corsair, 6 gig 1600 DDR3, Spinpoint 1TB 7200 HD, Caviar 500G 7200 HD, GTX275 1280M, Logitec Z640, Win7 Pro 64b, CH Products yoke, pedals + throttle quad, simpit

Back to top

IP Logged

Reply #11 - Sep 26^th, 2004 at 4:59pm

Scorpiоn Offline
Colonel
Take it easy!
The Alamo

Gender:
Posts: 4496

I don't plan to be poking inside the Pandoras Supply box anytime soon. Wink

You just have to know your limits. Tongue

The Devil's Advocate.&&

Back to top

IP Logged

Reply #12 - Sep 26^th, 2004 at 10:03pm

TWA800 Offline
Colonel
Cessna 185
Fairbanks Alaska

Gender:
Posts: 14

heres a good link for PSs:

http://web2.murraystate.edu/andy.batts/ps/POWERSUPPLY.HTM

sys specs:&&Gigabyte 7NNXP MoBo&&AMD XP 3000+ CPU&&1.5 MB GeIL PC3200 RAM&&Gigabyte nVidia Gforce 6800GT GC

Back to top

IP Logged

Reply #13 - Sep 27^th, 2004 at 7:42am

4_Series_Scania Offline
Colonel
He who laughs last, thinks
slowest.
Stoke on Trent England U.K.

Gender:
Posts: 3638

Scorpion, have you got an old mobo & PSU to test your individual components? it indeed sounds to me like the PSU is dead, worryingly, it could be the reason your 1'st cpu went bang!

I'd slip your local PC store a few $ to test the PSU before (which it seems too late ,as you've tried the new cpu already...? ) you re-assemble the pc.

also, remove the mobo battery (to clear the CMOS RAM). I've found this helped me get back a mobo that had died after an extreme overclock.

Did what we discussed work then??? Wink

Posting drivel here since Jan 31st, 2002. - That long!

Back to top

IP Logged

Reply #14 - Sep 27^th, 2004 at 4:46pm

Scorpiоn Offline
Colonel
Take it easy!
The Alamo

Gender:
Posts: 4496

I haven't done any overclocking, but I'll try the battery anyway. Wink

I can say it's not my hard drive or graphics card, because I'm using them both on the old PC right now. (drive as slave) It can now only be the MOBO, RAM or PSU. As I'm using the graphics and drive, and the CPU is brand new.

The best I can hope for is it being the PSU, despite being new. A new PSU is a lot cheaper than a new MOBO. Tongue

The Devil's Advocate.&&

Back to top

IP Logged

	Search the archive: