45C with my Alpha 8045??

[LukFilm]

Isn't this a bit too high for this cooler? My system temperature is 28C. Shouldn't I be getting much better temperatures??? :|

 

[whitelight]

what fan are you using? and cpu?

 

[LukFilm]

I'm using 1.4GHz (not overclocked) and YS Tech 48.5 CFM fan.

 

[LukFilm]

I have good airflow in my case, fan in front taking it in, fan under the PS blowing out, I don't know where the problem is.

 

[whitelight]

did you try positioning the fan so that it blows instead of sucks? it's designed to suck, but some ppl have reported better success when the fan blows.

 

[LukFilm]

Yeah, I read that and it was blowing right from the beginning.

 

[Mikewarrior2]

What motherboard are you using? Remember that hte MB and Ambient System Temp are much more the deciding factor in SOcket-A temps than is the heatsink.




Mike

 

[Kipper]

I'm getting similar temperatures on a 8k7a with a 1.33 GHz Athlon overclocked to 1.46. I have five case fans including the PS, and am using a Panaflo H1A (40 CFM). You might want to check whether the fan blowing on the heatsink is interrupting airflow to the back of your case. I know that in my case, the 8k7a has the processor seated next to the exhaust fans - if it were set to blow, this would pull air AWAY from the exhaust and not as much would come out. Therefore, I have it set to suck so that the two case fans there can suck the hot air right out. Temperatures are 42 degrees processor, 26 system, and 23 ambient (case) according to MBM5. This is probably a dumb question, but you DID use ASII, right?

 

[Cosmo3]

I have the same heatsink fan combo that you do and I am running a 1700+ XP cpu and have it overclocked to an actual 1530 and I am running 33C right now. Did you use 2 or 3 washers on your springs? I used 3 and it seems like some people are getting better temps by doing that. I have a Antc 1040 case with stock fans in the back and 2 80mm fans in the front and my cpu fan is sucking not blowing. Hope this helps.

 

[Colie]

I have an identical system to Madcow's with the exception of the fan. My fan is a YS-Tech 48.5. I just got the alpha yesterday and on initial installation, with the fan blowing, I am getting 46C. I only have 1 washer on the heat sink installation. Do most have 2 or 3 washers installed? Any danger of damage to CPU with more washers? I guess I have some Experimenting to do with sucking vs blowing and washer numbers.

 

[Cosmo3]

I am talking about the screw with the spring on it I have 2 washers above the spring and 1 below it. I think the instructions say to use 2 but on their web sight it says you can use 3 so that is what I used and temps are as posted. Make sure your case it venting properly, try taking the side off and see if temps drop much if they do you don't have enough case ventilation. I usually say if temps drop more than about 4C you need more fans in your case.

 

[GraveJoKer]

I am running a Alpha 8045 on Athlon 1800+ and getting an Idle 31C (room ~24C) while using a 32CFM Panaflo sucking, on an ECS K7S5S mobo. case is SX840 with 2 stock fans at the back sucking out air. Though I am planning to put another 48 CFM YSTech in the front.

 

[EdipisReks]

well, if the fan was blowing from the beginning, try reversing it. the alpha heatsinks are really designed to suck. a friend of mine has an older one (the PAL6035) and he got a temp reduction of about 6 degrees C when he took my suggestion of reversing his fan (he had it set to blow instead of suck). this was in a well ventilated case. as the design of the PAL8045 and the PAL6035 are basically the same, i would imagine that you might get similar results.

--jacob

 

[rondeemc]

I have a 1.4 with a Enermax fan sucking at the medium speed and I get around 43 idle and 48 load. My system temp appears to be invalid on this msi k7t266 board since it reads 37 in a room with an abient of 25-27 with a case that is well ventilated. You might try updating your bios, i did and go a 4C drop so there are some unresolved issues with my board.

 

[SWScorch]

I have a TBird 1.0 overclocked to 1.3, and it is running @ 44 C right now, Mobo temp is 28 C. I have a 50cfm Sunon fan set to 'suck." I am fairly concerned about this, as I was expecting high 30s, but I figure since its overclocked 30% this is reasonable. I am willing to bet that if I set the CPU to its default speed I would see 36-38 C. As for you, well a 1.4 pits out a lot of heat. I would try sucking air out and see if that helps though. Be sure to manage your intake and exhaust fans so as to not disrupt airflow.

 

[Yihaa]

Alpha's are designed to suck air instead of blow, I have tried both on mu 8045 as well as 6035's and they all perform better in 'suck' mode.
If you are not sure about the tightness of the springs, add a washer on all four (at the bottom of the spring). I would also get a fan like a Delta
(no, not the blower, there are tamer ones like this one.). They cool the best because of their
directional fans (note the second set of fixed "fans").

 

[Tifosi]

Im running a tb1.4 on a KG7-Lite. My heatsink is a PAL 8045T with a sucking Zalman 31 CFM fan. I my rather small open case I have 2 noname approx 30CFM fans, one blowing from the front and one sucking out the back.
As Im typing this I have the CPU at 43C and sytem at 35C.
I think this seems a little high since some of you guys have CPU at <35C. I found it very hard to get the arctic silver on properly. I also managed to get a scratch on my heatsink.
I will try to remove the whole thing and doing it all over again. I want to get way below 40C without the use of VCool. Using a program for cooling is cheating. With VCool I get CPU at 32C.

 

[Mikewarrior2]

ONCE AGAIN:

Motherboard type and Ambient System temp play huge roles in how socket-A temps are read. Since the Internal diode support still appears to be busted (on the a7v266e) there's only 3 MBs that read internal temps. The rest all read external socket-thermistor temps, and even slight changes in thermistor location (1/4 inch can mean the difference from 10% off actual die temp to 30% off actual die temp) alter how temps are read.

If you have a MB that is known to read higher than other mb's, then there is nothing you can do about your temps being higher than other peoples. You can *only* compare with the same MB. There is no reasonable way to compare with different motherboard.

If your AMBIENT SYSTEM temp is over 30C, then you *cannot* expect CPU temperature readings of under 35C under load. THat is an unreasonable expectation. Want to lower your temps? Get better case cooling. Or if you're really paranoid, get a MB that reads lower temps than the one you currently have.

Until AMD internal diodes can be effectively read by MBs, and this is proven to be reliable, there is no way anyone can really compare AMD temps. Too many EXTERNAL factors play into the temperature reading, and the biggest one being the Motherboard, then Ambient system temp, then the CPU wattage. CPU wattage isn't even the first factor in determining socket-thermistor based temperatures....



Mike

 

[LukFilm]

I reversed the fan and the temperature is the same. I think it's because I have it enclosed in a wooden cabinet where there is only one side open (front of the computer). When I pulled it out and opened one side, the temperature dropped to 35C.

 

[SOHCC]

I use the stock Antec case fan (34 CFM) on the Alpha 8045, idle is about 39C. I have XP 1800+, no OC. I also have 5 Silencers on my Antec sx800. I got better temperature when setting it to suck, I also removed the shroud, just put the fan on top of the heatsink.

 

I am having similar results LukFilm..

I have the Antec SX1030B case... 2 front fans sucking, 2 back fans blowing....

Athlon 1400 (no o/c), MSI Turbo Limited Mobo, Alpha 8045 HSF, and Sunon 50cfm fan sucking air off HSF...

My idle temps are 40'C cpu, 23'C ambient. I have seen it get to 45'C idle. I thought this heatsink would be better than that... One advantage I have seen tho is that it will let me take the cpu all the way up to 1700 which my old heatsink would not do

 

[Mikewarrior2]

Microstar,

You can't comapre temps with any other mb other than the k7t-turbo, and since hte k7t-turob has a movable thermistor, that is still very hard to do.

Compared to other MSI board readings, your temps are actually lower than normal... is your thermistor in good contact with the cpu back?



Mike

 

[tazdevl]

LukFilm you don't have enough airflow in your case, if you add another fan or two, it might help a bit. But 45C is not bad and as Mikewarrior2 said, your expectations of a lower temp are unreasonable given your system temp.

 

[LukFilm]

I ordered 2 Panaflo 21cfm fans for the front and the back of my case. I have some old fans that I found lying around and I don't think they pull much air in/out of my case. Once I do that, I think the temperature should drop.

 

[breweyez]

I have the same HSF on a ECS K7S5A. My temps are slightly higher(49 right now, 50-51 under full load). Im not to worried though.