Installed new HSF on CPU....*UPDATE*

[TraumaRN]

OK here's the deal. Bought an AC Freezer 64 Pro for my brand new X2 4200+ to help keep the load and idle temps down(which its doing a great job) I'm now idling at 35C and loading at 45-46C in a room with ambient of around 26-27C. Woohoo right??

Wrong. Now my 7800GT with it's stock cooler and rocking good overclock decide it's gonna now idle at 49C. It's loading up between 63-70C depending on the game and no apparent problems YET. However this does worry me. Before she would idle around 40, sometimes high 30s depending. The only other thing I did while installing new CPU HSF was doing a routine dusting of the case.

So WTF gives?

UPDATE: Well I attempted dusting out the vid card while PC was running without any visible dust or anything. Rechecked wiring and air flow and all is well on that end. Turned my 80mm that is exhausting hot air our of my case up another 500RPM this helped a little bit temps dropped from 49C to 48C. Then removed VGA card and checked for dust in fins, which their are none. I am considering putting some AS5 on the VGA card.

Otherwise what is odd is that my load temps are 63-65C after careful monitoring which is the same they were before. No artifacting or freezing. Didnt have to back my OC down either. Oh well maybe the card is getting old or something. As long as it still works!

 

[LOUISSSSS]

did something get in the way of the airflow of the video card heatsink? did break the heatsink or move it or even touch it the wrong way during the other installation? rewire your cables and give the 7800gt a free path of airflow

 

[TraumaRN]

Originally posted by: LOUISSSSS
did something get in the way of the airflow of the video card heatsink? did break the heatsink or move it or even touch it the wrong way during the other installation? rewire your cables and give the 7800gt a free path of airflow

Cables are all still in the clear, airflow didnt change, if anything airflow changed for the better. Still cant figure it out.

 

[Powermoloch]

meh I wouldn't worry about anything. According to Nvidia, any cards loading up to < 90 C is fairly normal.

Just make sure your card has enough cool air to breath and good exhaust to crap it out from the case.

 

[apoppin]

this happened right after you installed your HSF?

is there any gap between the surfaces? Hold it up to stong light to check. And you did use only a TINY bit of thermal paste? too much is bad.

EDIT: i get it

ok, did you BUMP the videocard? make sure everything is seated properly with no cables impeding airflow.

and monitor your fan speed with SW if you can.

what kind of CPU HS? is it now blowing hot air on the videocard?

Maybe your case got hotter with the better CPU cooler

[doubtful]

 

[TraumaRN]

Originally posted by: apoppin
this happened right after you installed your HSF?

is there any gap between the surfaces? Hold it up to stong light to check. And you did use only a TINY bit of thermal paste? too much is bad.

EDIT: i get it

ok, did you BUMP the videocard? make sure everything is seated properly with no cables impeding airflow.

'nd monitor your fan speed with SW if you can.

Yea been monitering and everything is fine so far. I have fan speeds customized with RivaTuner for the vid card.

I'm just worried that it'll mess my OC up as it's such a nice OC for my card especially with stock cooling.

What I'm gonna do is shut down for the night, and since I work 12 hours tomorrow I wont touch my computer again til tomorrow at around 8pm EST. So everything will be cold and whatnot. Reboot, load up some AOE3, Oblivion, etc. See how the temps look. If they are still 49-50C at idle and and loading up near 70C then I'll consider taking the HSF off my 7800GT and reapplying some AS5 to the core/mem and see if that helps, or even check see if somehow a small piece of dust is obstructing airflow in the HSF itself.

EDIT: It'a an AC Freezer 64 Pro, it's blowing air directly at my exhausting 120mm fan. So I doubt thats it. I'm thinking maybe when dusting I knocked some dust loose and on reboot it clogged a fin in the VGA cooler or something.

 

[apoppin]

yeah, i'd take it apart . . . especially if you o/c . . . the temperature increase wasn't that much . . . but it is worth checking out imo.

good luck

 

[TraumaRN]

And on the note of dusting I may just tear it down tomorrow night anyways re-dust out the whole case using my dad's air compressor and take the VGA HSF off AS5 it and hit the fins with the air compressor

 

[Captante]

"EDIT: It'a an AC Freezer 64 Pro, it's blowing air directly at my exhausting 120mm fan. So I doubt thats it. I'm thinking maybe when dusting I knocked some dust loose and on reboot it clogged a fin in the VGA cooler or something."

This is exactly what I was thinking you might have done, or somthing close to it... before you go nuts & take everything apart, you might want to just pull the cover off of the heatsingk on the video card & check.

 

[PingSpike]

Make sure the fan is still working on the VGA cooler. I'm thinking you just changed airflow in a way thats unfavorable to the video card some how. But its hard to even guess at that without pics.

 

[TraumaRN]

Bump.....

 

[michal1980]

you just drasticaly changed the air flow in you case. Thats all. The new hsf is more efficent at cooling the cpu. The sink determines how efficently you can pull heat away from the cpu. The air flow determines how well you can get the heat off the sink. Given that the amount of air going into you case is probably the same as before. To lower the cpu temps, the new sink takes more air. And probably altered the way the air flows around the case.

if for example your old sink just pushed air down on the cpu. It created a huge air pocket around the cpu, which allowed more are to stay by the gpu. If now that air flow is smoother and straight through the cpu, theres no pocket hold some air for the gpu.

 

[PingSpike]

If you don't have one, try adding a side fan just below the vga slot to your case. I have a fan on the side that blows primarily on the video card. Keeps my x850xt at under 40 idle and under 50 load even in the summer. But I also have an ati silencer on the thing.