Over Heating Questions

[Trout]

Hi,

I Have a few questions about temps on some computers Im working on.

Possible Overheating

Systems Specs , 2 exactly same systems

Soyo K7VME Mobo with latest bios
AMD 2400+tbred CPU's With retail fan W/artic silver,, 266 bus
Kingston PC2700 DDR
WD 80 Gigs
Sony Floppy
Video onboard
audio onboard
lan onboard
Sony CDRW/DVD combo drive
350 watt enermax supplies

BOTH systems are reporting terribly high CPU Temps
CPU TEMP 84 degrees C / 183 degrees F
In Case chassis temps 46 degess C/ 114 degess F

When removed from case CPU temps are un-changed and chassis temps only fall 2 degees C.

The Bios has very limited voltage information.
CPU Vcore 1.632 <~~ Floats from 1.632-1.643
Dram Voltage 2.560
+5V 5.134
+3.3V 3.504

Im not even sure where to begin looking on this pair of PCs,The componets were purchased several months apart,They are surprisingly equal as far as voltages and temps,BUT, I really dont want to fry anything here. And those Temps are SCAREY!
The heatsinks feel hot to the touch, Unlike my other machines. So I Feel the bios is reporting the correct temps.
Any Ideas would be helpful
Trout

[NooNoo]

If they were that hot you would be experiencing constant lockups and random reboots.... look for a bios update for the motherboards.

[Trout]

If they were that hot you would be experiencing constant lockups and random reboots.... look for a bios update for the motherboards.

While letting one of those computers run,CPU Temp Hit 90C !

I Beleive its Really getting that hot, especially from the heatsink branding on my thumb.

At Soyo's site, I have the 1 and only bios version listed.
Ive since written their tech support seeing as these boards are only a few months old and should be under warranty.

Honestly,, I Bet these things are about 15,000 btu's Great in the winter,BUT
Sniff Sniff,,, Pretty smelly in my workshop right now.

[Hippie_Tech]

Temps should NOT get that hot with these processors. Somewhere between 120 and 150 degrees F would be more acceptable. I'd double-check the CPU fan to make sure it was 1) blowing air down onto the processor and 2) actually spinning. Is the heatsink on backwards (as in not physically touching the actual processor core)? I'd also re-check the Arctic Silver application (sometimes too much can trap the heat in the core). Very small amount of heatsink compound is required (very thin layer of compound covering the core). All the compound does is fill in any imperfections on the bottom of the heatsink so heat can transfer better. If there is a lot of compound "spilling over" the edges of the core, too much has been applied.

[Trout]

Temps should NOT get that hot with these processors. Somewhere between 120 and 150 degrees F would be more acceptable. I'd double-check the CPU fan to make sure it was 1) blowing air down onto the processor and 2) actually spinning. Is the heatsink on backwards (as in not physically touching the actual processor core)? I'd also re-check the Arctic Silver application (sometimes too much can trap the heat in the core). Very small amount of heatsink compound is required (very thin layer of compound covering the core). All the compound does is fill in any imperfections on the bottom of the heatsink so heat can transfer better. If there is a lot of compound "spilling over" the edges of the core, too much has been applied.

Think I May have found the answer.
The thermistor/sensor was unusually high/close to the CPU, Possibly even contacting it.
So, I folded it down closer to the mainboard, And Now Im showing 55 degess C rather than 90 degrees C.
Oddly, I also get lower temps with side panel ON Vs Off.
I have 6 of these units,Only 2 are giving us heat problems. BUT, Im still very concerned about the actual heatsink temp, These are AMD retail bundle fans with copper inserts in base. Im 110% sure they are all installed correctly.
Either way,, Im going to let it run a burn in test for the next 8 hrs,Fly Or Fry,, I'll post later.
Trout

[NooNoo]

The case on would be directing the air flow correctly and you will see a drop in temperature. With the case off, the air flow is chaotic.

[gazzak]

Read this regarding airflow.

[Trout]

Welp,
Scrap 1 mobo and processor !
After about 4-5 hrs of burn in test, I went out in my garage and SniffSniff, It Smelled REALLY UGLY.
I Love the smell of burnt epoxy (napalm) in the morning lol

Im not exactly sure what temp it finally reached,Nothing appears melted, But either way,The Mobo, Nor the cpu on a different board work now.
Ram chip survived, No drive damage as far as i can detect.
CPU socket on boards discolored though.

This should make for an interesting rma debate.
Trout