AMD XP1800+ at 58C!

[dodo]

I am using the original CPU hsf. I did not overclock it. When I leave the case open, it runs around 50C. But after I close the case it shoots to 58C. System temp is around 30C. I have one front case fan and one back case fan.

I just wonder whether I can live with it or I have to replace the hsf or add a fan to make it cooler.

Thanks a lot!

 

[Mikewarrior2]

what motherboard?


Mike

 

[Witchfinder]

OK , let`s take this in stages.. Firstly what is you room temp?, this has big bearing on things especially as your case temp is 30 deg-C, is it that high because of poor case cooling or is your computer room like an oven.. What sort of design is the case?, for instance, my old one was a Slot-1 job which placed the CPU UNDER the powersupply with NO exhaust fan - very poor worst case scenario - I bought a new nore Athlon-friendly case..

As for the CPU temp being 50deg with the case open, it looks largely to me like the thermal interface between the heatsink and CPU not doing the job, even something like a Swiftech or AX-7 won`t cool well if the heat`s transfer between the Die and the HS is poor.. I don`t know what the AMD HS is like but I feel that it should be better than that.. Firstly try refitting the original unit with Arctic Silver as per their instructions on their site, if that isn`t good enough maybe it`s time to look into a new HS/Fan, if you`re strapped for cash, try a Volcano 7+, a very highly rated unit with max bang for buck... if you`ve got a bit more, I can recommend the Thermalright AX-7, I`ve just fitted one today on MY 1800+ (slightly O-Clocked at 138/138) with a 3000RPM 80MM YS-Tech fan and it idles @ 33 degrees C at a room temp of 20 deg C (around 70F) in a Lian-Li case, I`ve yet to see the temps get over 36 degrees even when pushed hard.. To give a perspective, in a slot-1 case with a Globalwin FOP38 / 7000RPM Delta screamer on, it idled at 45 degrees even WITH arctic Silver on!.....

Hope this helps

 

[crisp82]

Basically, you want to keep the CPU temp below 40*C if possible, as the higher the temperature, the shorter the lifespan of your CPU. I would add another fan if possible, and try to maximze the amount of airflow that surrounds the CPU, and direct it towards the outtake fan, as this should help to lower the internal temperature of your system.

If you replace the CPU cooler, make sure you use a good thermal paste, such as Arctic Silver.

All-in-all, I would really try to lower the your system and CPU temperatures.

 

[redls1]

I have an xp 1900 running at 1744. Nothing I have tried gets the cpu below 51.50c. The case temp is 38c. I have 2 fans in and 2 fans out.

 

[dodo]

Thank you very much for the helpful information.

Following are some more detailed information of my system,

1. Room Temp 78F, 70F is too cool for me to stand.
2. System temp 36 instead of 30 as I said in original post. (Sorry)
3. My case is Enlight I bought it more than two years ago. At that time it is a very popular one( I forgot the model number)
4. My motherboard is ECS k7s5a
5. I checked again, power supply and cpu are near to each other. CPU is kind of at the edge of power supply. But in general power supply is in the upper side of case. If this matters all the users using ECS k7s5a should have this problem.
6. There are two fans in my system, one is behind Power Supply, and another one is far away from CPU.

Ok, that is all. I kind of hesitate to buy a new HS/fan cause it is a boxed CPU and I am not planning to OC it. Any more suggestions? I'd really appreciate the directly instruction of what I need to do just like Witchfinder wrote.


Again, thanks a lot.

 

[Witchfinder]

Well if your setup looks like THIS

Slot-1 case + Athlon = High temps PIC

Then that is the reason!!.. I was getting idle temps of 45 degrees with this setup even WITH a slot cooler bodged on the vents at the top, the Heatsink/fan was a FOP38 with a Delta 7000RPM screamer on.. The case was an expensive InWin one (sorta state of the art in the Klamath days) but definately NOT Athlon friendly even when all the cables are rounded and tied neat...

A Lian Li cured it and even let me replace the Delta fan with a 4500RPM YS tech and get even lower temps, The AX7`s even better / queter performance in this case is mentioned above..

It now looks like this - plenty of space, Exhaust fan near the CPU, clear path from the front fans to the CPU area with no cables blocking the way, big HS with slowish 80mm fan on for sanity ..

Happy Cool Athlon

 

[dodo]

Witchfinder,

Thank you so much for such a detailed explaination. My case looks exactly like your slot 1 system. Now my question is. Can I just replace the HSF and use Arctic Silver to make the temp below 45C without replace the case?

It looks to me that the good HSF plus Arctic Silver will be around 50 to 60. I think I should be able to get a decent case with that price. Any suggestions of which way I should go?

Also is there any way I can place the power supply to the lower part of the case. I thought that maybe one of the easiest way to solve the problem.

Again, Thanks a lot.

 

[Jman13]

Also, there is no need to worry if the thing doesn't get below 40C. VERY few people run AthlonXPs below 40C at full load. The Athlon is rated for operation up to 90C, and 60C is considered a normal temperature according to AMD literature, so don't worry about it. If you chip would fry at 55C after a year or so, AMD wouldn't include such a crappy HSF with it. Now, I wouldn't overclock the chip if it's nearing 60C...

Anything under 50C full load is fine if you're not OCing, or if you're mildly OCing.

 

[Witchfinder]

Believe me Dodo, if a 7000RPM DELTA couldn`t cool it, nothing will - it just couldn`t get enough air, if you MUST keep the same case, I would suggest cutting a blowhole in the top near the CPU and fitting a fan but really, i`d suggest a new case. The Delta was running at up to 7500RPM (the Mfr`s spec stated 6800RPM) showing that the restriction was serious.. A good way to test for this is to hold the fan out in the open connected to the motherboard and check the RPM in the BIOS (or go by the makers spec) and then try it in situ with the case closed, if you notice a significant increase in RPM, then there`s restriction - I even cut the punched out grille from the Lian Li`s exhaust port and fitted a wire one due to this..

As Jman points out, the CPU is safe at these temps but remember that we`re only in Spring, the heatwave of summer is around the corner and I just thought what sort of temps it would be reaching when the room temp is over 90! . But then, we don`t generally have air conditioning in homes in the UK . it just seemed insane to me to keep the system in an inefficient case and have a screaming Delta driving me nuts to try and keep it cool, so I sprung for a Lian Li.

A decent HS/Fan is a waste if the thing can`t get enough air to do it`s job

 

[OracleMan]

oh man...just buy an a/c to install in your room; fix the heat problem.

New hs/fan (8045=$50) + new case(aluminum =$150) + additional fans (retail fans $12 each) = $200+

with this price, get yourself an a/c, stay cool in the summer too

 

[Crucial]

Now that is some of the best damn advice I have heard. I got a window unit at Sam's Club for about $125 2 years ago. unit is still chugging away fine.

 

[Binky]

My ECS K7S5A always seemed to indicate high temps no matter what. I think it just reads high and yours may be too. If your 58C is at full load (e.g. SETI or RC5) then you are FINE (hot, but safe).

If that 58C is at idle then you may be hitting crazy temps at full load. My 1.4G ran at about 55C on the K7S5A under full load with a basic globalwin heatsink and a mediocre case. When I upgraded to the Alpha 8045 it dropped to about 46C. Even at 60C my system NEVER crashed due to heat.

The most complete suggestion if you choose to do anything: grab a better case with more airflow like the Antec 1030 or 1040 and throw an Alpha 8045 on it. It's better to do both at the same time since you'll have to remove the MB anyway to fit the 8045. you do NOT need a fast/loud/annoying fan on the 8045!

Cheap case ($75 delivered)

8045 (about $40 delivered)

 

[Binky]

One more thing!

My AMD 1.4G with the stock heatsink from an 1800+ ran at about 57C at idle, so your heatsink is probably installed and functioning as good as it can be.

 

[mste456]

man u guys are talkin about some serious temps. i run my xp1900 with an alpha 8045 hsf @ 29C rises to 31C under full load

 

[mste456]

oh yeah i'm runnin it on my epox 8k3a with 256mb Corsair xms pc2700 (166/166). gainward gs Geforce 3 (240/520) and a beast 550w enermax psu

 

[DoubleL]

You want to talk hot rooms I have my computers and work bench in a room with three wine cellars and it stays at about 84 to 87 with the air on, The cellars just put to much hot air out the backs, But then again a Swiftech with stock fan will keep my Dragon+ and XP1900 43 to 44C under full load without the noise and a Alpha with a 3000 RPM Enermax will keep the 8KHA+ XP1900 45C under load, Same with a Asus