2500+ with Lian Li PC65 and SLK-800 getting too hot

[upsciLLion]

As the thread title states I have an AMD XP 2500+ being cooled by an SLK-800 using an SMB 80 mm fan which is similar to a Panaflo L1A. All of this is inside of a Lian Li PC65 with two 80 mm fans in the front, an 80 mm in the rear, and an Antec TruPower 480 just above the rear fan. This stupid thing idles at 51°C!!! The case temperature is 35°C right now at idle. I've used an air compressor to blow dust out of the case and off of the heatsink, and I've reseated the heatsink and reapplied thermal gel. Do any of you have any suggestions?

Thanks for any help you can give,

ups

 

[BG4533]

Is that OCd or not? Either way it seems a bit high. For a while I had an XP1700@2GHz, 30C case temps and 38-40CPU temps with SLK800 and a fan around 15cfm.

What sort of "thermal gel" are you using? Have you had good results with it before? Maybe try Artic Silver.

Also, I have had dust caked in my SLK800/900 before that compressed air just would not blow out. It seems after a few months I really need to just remove it and wash it out.

Also, the SLK800 has a tendency to sit to high up and rest on the high part of the ZIF socket, make sure it is pulled back away from it.

 

[beatle]

Your case temperature is a bit high @ 35C. This may seem like a silly question, but are your fans blowing in the right direction? You mentioned which way you configured them, but I've made the mistake of turning them around accidentally and having the exhaust blow in. What temperature is your room? This can also have a big effect on the temp of your case.

 

[screw3d]

Are you sure that your heat sink is installed in the right direction, ie. does the raised part of the CP socket aligns to the notch on the heatsink?

 

[0roo0roo]

installation/too mcuh too little paste, wrong paste . ur temp seems high.. i only near 50 in the summer aand i toast my cpu at 1.85v and have same cooler.

 

[drewdogg808]

what mb?

 

[WobbleWobble]

Originally posted by: drewdogg808
what mb?

Right, you need to tell us which motherboard as different ones give different measurements. Also, is that CPU diode temp?

What's your room temp? And what voltage are you using?

 

[mechBgon]

Originally posted by: WobbleWobble

Originally posted by: drewdogg808
what mb?

Right, you need to tell us which motherboard as different ones give different measurements. Also, is that CPU diode temp?

What's your room temp? And what voltage are you using?

Also make sure that before you clip down your heatsink, you slide it as far away from the raised, solid end of the CPU socket as the clip will allow. If you used a shim between the heatsink and the CPU, take it out and cut it into little pieces and throw it away. :evil:

 

[upsciLLion]

My CPU was overclocked, but since the temp jumped so drastically, I bumpbed it back down to 2500+. It was running 3000+ at around 45°C idle/48°C load, but obviously that has changed.

I lubed up my CPU with Artic Silver. Half a grain of rice size spread evenly across the surface.

I reseated the heatsink as far away from the big plastic piece of the ZIF socket, but it hasn't made a difference.

I double checked the direction of the fans, and yes, they are all spinning in the appropriate directions.

I also checked the orientation of the heatsink and it's correctly oriented.

I'm using an Epox 8RDA+, taking the temps from the CPU diode using the USDM program that Epox includes.

My room temp is between 70°F and 75°C at any given moment. The CPU voltage is at the default (1.6 or something).

I hope that helps! Thanks,

ups

 

[0roo0roo]

if it doesn't crash its ok. 75f is pretty high lowest temp for your room, so temps are ok.

my temps also rather low because my case has very free airflow. lianli's are pretty, but somewhat restrictive witht heir fans.

 

[Blooz1]

I've got a Lian-Li PC-65b with an 8RDA+/1700B running at 1.9 with an SK-7/80MM Titan (39CFM), and my idle temp is 34C/load about 39C.

The only changes to the case is replacement of the noisy ADDA fans with Panaflo H1A's, and I took the VERY restrictive filter holder inside the bezel off. This, in itself, will give you a large improvement in airflow for intake! Try it for an hour or so and see! (The filter will stay in place by itself)

 

[upsciLLion]

Oops oops oops. I meant 75°F highest temp in my room. My body would melt if it got up to 75°C.

I have custom LED fans in the front and rear of the case, so that shouldn't be a problem. They seem to push a decent amount of air. I have tried taking off the front dust filter, but it doesn't seem to make much difference.

Does anybody know how well the Antec Super LAN Boy case does regarding airflow? I really like the idea of having 120mm fans instead of 2 80mm fans. 120mm fans are pimp.

Thanks,

ups

 

[drewdogg808]

i found at least a 1C drop from taking the filter holder off my pc65....but otherwise i feel like my case doesn't get as good flow as other brands...i've done a few mods too.

 

[zodder]

Does your case have the blow hole on the top?

 

[upsciLLion]

No, my case doesn't have a top blow hole. All of this is very perplexing because my younger brother has essentially the same setup (case, mobo, CPU, but a different HSF) as I do, but his CPU runs 10 freaking degrees celcius cooler.

/pulls out hair

ups

 

[adams828]

hm perhaps a faulty chipset thermal diode? or maybe one (or more) of the fans aren't spinning properly (ie lower rpm) for whatever reason? i dunno.. all i could think of right now

 

[upsciLLion]

They're all spinning correctly. I'm thinking about ordering a new set anyway. I'm getting tired of the blue/indigo look. I want some nice firey red. :evil:

Interesting observation: I turned off both cathodes and removed the side panel. My CPU temp dropped about 10°C (yes, celcius). The system temperature is still around 35°C, though. Does this directly reflect poor circulation?

Thanks,

ups

 

[ToxicWaste]

Yes, that implies poor ventilation...

Sorry to harp on this... So, you say the the fan(s) in front are sucking air into the case and the fan(s) on the rear are exhausting the air? This would be the desired configuration...

 

[upsciLLion]

Yes, that's how they are set up. The two in the front are sucking air into the case, the one in the rear is blowing out, the one on the heatsink is blowing down, and power supply is obviously blowing out the case.

ups

 

[ToxicWaste]

when you put your hand in the fan's exhaust stream, does it feel like you are getting good pressure? Similar to what your brother's case feels like?

 

[upsciLLion]

The fan speed feels all right I guess. I ordered some new case fans last week, so they should be here soon. Hopefully they'll work better. They're the LED fans made by Coolermaster.

ups

 

[TheLizardMan]

you ALL are n00bs.

He has a panaflow LIA HEATSINK FAN! omfg that is SOOOO stupid. that is a good QUIET case fan, but it is TOOOO freakin weak for a heatsink fan.

get a better heatsink fan and your problem is solved dude.

 

[mechBgon]

Originally posted by: TheLizardMan
you ALL are n00bs.

He has a panaflow LIA HEATSINK FAN! omfg that is SOOOO stupid. that is a good QUIET case fan, but it is TOOOO freakin weak for a heatsink fan.

get a better heatsink fan and your problem is solved dude.

C'mon, it's not THAT bad I use L1A's on my SK-7 (Duron 1.0 oc'ed to 1.33 @ stock voltage) and my Alpha PAL8045 (2500+ @ stock speed). They move more air than the fans on the stock AMD heatsinks (24cfm versus 21cfm), and he's got a heatsink that's head & shoulders above the retail AMD 2500+ sink too.

My 2500+ idles around 46°C under the Alpha/Panaflo combo, that reading being taken from an A7N8X Deluxe rev. 2. Depending on the motherboard, I could see 51°C being an acceptable reading, since they're calibrated so differently sometimes.

 

[Tbirdkid]

Epox has and will probably always read high. Remember the 8k3a? I would say try a stronger fan and you are fine. I think i remember the epox boards the diode was usually like 7 degrees off. Not totally sure that is the way it is on an 8rda but I know on the 8k3a it was.

 

[nboy22]

is that true that the 8k3a+ boards are messed up??? 7 degrees higher? cause that might be my problem .. my cpu has been idleing at 150 degrees farenheit