Uh...Oh

[voogru]

Big problem.....

I have a HeagedHog 238S with artic silver Thermal Paste.

Im getting 57c (with dnet running) (54c Is normal temp) with case OPENED.

why?!

i heard sumwhere that the asus A7V mis reports temps but when i touch the heatsink.. ITS HOT AS HELL

i may have to go water cooling but im scared to take off the heatsink

[woodyee]

Hey Voogru I am also running a Hedgehog 238s, with a 30CFM Delta fan, (blowing down, I heard the temp rises if you turn the fan to up) with a 1.2 AMD Tbird and the usual temp is 44c and usually less. I think you might have too much silver paste in there. You only need a razors thickness of paste, too much defeats the purpose. Make sure the tension on the clip is tight, too loose is bad. Heat sink s/b cool. The very best way is to clean the chip and HSF, put on the goop ( 1/3 of a pencil eraser's worth and spread it out with a razor blade ) and install the heatsink. Then you remove the HSF and check the contact, a nice pink rectangle s/b on the HSF. If it is, then you've done it correctly. Hope this helps ya out.

[Barney]

I warned you about this before (I assume you haven't done anything about it yet). The fan on your cooler sucks the hot air away from the heatsink, but you don't use the shroud! You gotta take the cooler off and turn the fan upside down (or is it downside up? http://www.sysopt.com/forum/wink.gif ). Or put the shroud on.

Ronald http://www.sysopt.com/forum/smile.gif

[krusty the klown]

If the CPU's running hot and the heatsink's running cold, then the problem lies with the thermal junction between the CPU and heatsink: the heat can't get to the heatsink efficiently.

If the CPU's running hot and the heatsink's running hot, then for one reason or another the heatsink cannot get rid of the heat.

The possible reasons for this are: insufficient airflow over the heatsink, or insufficient case ventilation.

You have a problem with airflow over the heatsink, as it still runs hot with the case open (assuming the room's not at oven temperature http://www.sysopt.com/forum/wink.gif). Looks like Barney's on the case there http://www.sysopt.com/forum/smile.gif

[voogru]

Barney...

I have the Fan Sucking air OFF the Heatsink Im Not using the shroud.

also TOO much thermal paste May be the whole problem but taking off some of the thermal paste means taking off the heatsink.

ill try it tho and ill take pics of my Damaged CPU that worx (cracked!)

-voogru

thx!

[voogru]

Hello,


I got the Heatsink Off And Re applyied the thermal Paste AND i took Pics. But the Crappyu camera when i download em i cant read them http://www.sysopt.com/forum/frown.gif So i put on a Super Orb for now Until the Batteries Recharge and ill try again

also i may try closing the L1 Briges with a pencil

-voogru

[Fingers]

If your heatsink is "hot as heck", that indicates that you probably have a good interface between the CPU and the heatsink. The problem is, as Barney stated, that your current fan setup isn’t efficient enough to properly cool the heatsink.

If it runs cooler with the Super Orb, then the Orb is a better over-all cooling unit than the Hedgehog (at least in it's current configuration)…it's really just that simple.


[my $0.02…]
I've long been skeptical of copper heatsinks. My experience is that copper is an extremely good conductor of heat, but it definitely doesn't shed the heat it absorbs as quickly as aluminum. You just end up with a really hot chunk of copper sitting on top of a really hot cpu. If you build an all copper heatsink with the exact same dimensions and mass as an aluminum heatsink, you will need a much better fan on the copper heatsink to achieve the same performance as the aluminum heatsink. Copper could make a very efficient heatsink, but not as long as they’re building them with basically the same design as their aluminum competitors.[/my $0.02]

[krusty the klown]

The hedgehog should perform much better than the SuperOrb (just see Tom's Hardware site).

You are conducting the heat away from the CPU, but the problem IS with getting the heat away from the heatsink.

Now, I don't know about the shroud - I've never used a hedgehog - but heat removal from the heatsink is your problem, so try turning the fan around so it blows air towards the heatsink.

[voogru]

Fingers,

Yeah I guess your right about Copper Not being able to get rid of heat as fast as aluminum.

Before i got the Hedgehog I read Many Many reveiws Most were Positive exepct the down on each review was the clip (POS clip)

should i get fop32? would it be any better?


also i heard that the asus A7V Misreports temps by too high.. Is this true?

thx

-voogru

[krusty the klown]

...is speaking to himself...? http://www.sysopt.com/forum/frown.gif

[This message has been edited by krusty the klown (edited 03-15-2001).]

[voogru]

Ok Im MAD....I overclocked my Athlon to 1123Mhz and its running @ 58-60C!!! I have to put a HUGE fan outside too cool it down (THE CASE IS OPEND!!)
Now I done everything i reapplyed Small amounts of Thermal Paste I took off the whol thing and Reapplied a smaller amount and i do get lower temps but this is redicules

why do i keep hearing people getting 25c-45c and im getting 55c?!?!?!?!?!?! is it my config?

the Heatsink gets hot as hell so its not that its not connected properly.

im thinking of buying ANOTHER HSF!!

which would be good fop38?fop32?

thx!

-voogru

[voogru]

Forget it....

Ill just clock it down back too 1000.

it too **** hot at 1123 60c!!!!


i never got an answer whether the Asus A7V mis reports temps or not... http://www.sysopt.com/forum/frown.gif http://www.sysopt.com/forum/frown.gif http://www.sysopt.com/forum/frown.gif

oh well

thanks anyways http://www.sysopt.com/forum/smile.gif

-voogru

[Gomer]

As far as the copper/aluminum arguement goes....

Copper is a much better conductor (387 W/(m°C)) than aluminum (201.96 W/(m°C). Almost twice as better. All other things the same, copper will move much more heat!

[woodyee]

hey Voogru you might hace a wimpy fan on that thing. it should be between 30 - 38 cfm. and are your voltages high? I had a bad kt7-raid m/b at first - high voltages. it burnt out 2 processors til I called cust service and they said it was NG.

[voogru]

hmmmmmmmmmmmm

all i wold have to buy for My HSF is a good fan....

DELTA I dont give a f**k how loud it is!

im gonna see if i can get one. http://www.sysopt.com/forum/smile.gif
hopefully i will see 44c Idle http://www.sysopt.com/forum/smile.gif

my fan i got right now is either Ys Tech Or Sunon I really think its a sunon tho

-voogru

[Bovon]

This thread gave me an idea. I have a HSF design in my mind that may be a better 'mouse trap' and have/had considered copper or a copper/aluminum combo. I think I will experiment with both a copper heatsink, and an aluminum heatsink, of the same size and proportions..as close to being identical as possible. Put a heat measuring device on each, and heat them both to some heat range, then turn off the heating, and cool the sinks both naturally and with a fan...this should tell which cools quicker, and which is the better actual conducter of heating/cooling.

Thanks for bringing this up..

[krusty the klown]

Bovon

This thread gave me an idea. I have a HSF design in my mind that may be a better 'mouse trap' and have/had considered copper or a copper/aluminum combo. I think I will experiment with both a copper heatsink, and an aluminum heatsink, of the same size and proportions..as close to being identical as possible. Put a heat measuring device on each, and heat them both to some heat range, then turn off the heating, and cool the sinks both naturally and with a fan...this should tell which cools quicker, and which is the better actual conducter of heating/cooling.

If you took two identical sized bloks of metal, one copper and the other ally, heated them to 100ºC and timed how long they took to cool down, the copper WILL take longer. This is due to the fact that, say a 1" cube of copper @ 100ºC has more thermal energy stored in it than a 1" cube of ally. Yes ally does have a slightly better emissivity, but this is only important when you are using natural convection and radiation (i.e. no fans). Slap a fan on and the emissivity makes b****er all difference.

It is not difficult to design a heatsink capable of dissipating 50W or so. Feel the heatsink - it should be running cool, but the CPU may be at 40+ºC - why? the limitation for the higher efficiency heatsinks is in the thermal junction between the CPU and the heatsink: the contact area is tiny!

So many people believe (and refuse to accept otherwise) that ally is used because it's the best material. Rubbish! Just look at how an ally sink is made: extrusion - just like icing a cake with patterned nozzles: it's easy (and cheap) to do with ally. The same cannot be said for copper: it is relatively expensive to manufacture the heatsink... SO THEY USE THE CHEAP STUFF!

I've had the 'copper vs. ally' deb8 with peeps before - you can see the sort of stuff: http://sysopt.earthweb.com/forum/Forum3/HTML/007456.html

The point is that you want to conduct heat away from the CPU and expose that heat to as large a surface area as possible. The latter can be achieved in three ways: ensuring that the heat conducts efficiently form the base plate up the fins, ensuring that the fins have a large surface area and getting maximal airflow (doubling the airflow effectively doubles the surface area if you think of amount of air exposed to a given area of heatsink fins).

Hope this helps ya http://www.sysopt.com/forum/smile.gif

[LutaWicasa]

Let's keep this simple. If you have the fan sucking from the HS you must use the shroud. If you have the fan blowing on the HS lose the shroud.

[woodyee]

Man do I feel stooopid. Last week I removed the HSF to clean it and put it (the fan) back on wrong (pointing down). And to temp went up to 111 from 95 and I thought I screwed up the paste, so I figured I'd fix it sooner or later and 111 isn't too bad. Guess what. When I dug out the directions it said fan is supposed to be blowing out. Sorry for the fubar. But either way, with the stronger fan and even with the shroud on the temps are still good. I will reverse the fan Sat.

[This message has been edited by woodyee (edited 03-16-2001).]

[woodyee]

Hey guys, here's a way to use a 50CFM fan with your cooler.

http://www.thetechzone.com/display.asp?i=18&p=1

link courtesy of the TechZone

[wedor]

HedgeHog is the best HS I've used so far, Duron 600@1028=7.5*137, vcore 1.82 43c idle, using a Sunon fan. Much nicer than my FOP-38 Delta fan model and cooler.

[Underclocked]

I think this thread has just made my mind up for me. I've been deliberating about getting an MSI KT7 and a 1.1GB Tbird. Think I may just stick with my 29 degree PIII 800.