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Question Tyan Thunder K8WE S2895 Opteron 252s run hot ( 2CPU.com Discussion Forums Motherboards )
Updated: 2008-05-11 00:54:33 (29)
Tyan Thunder K8WE S2895 Opteron 252s run hot

Stock HS & coolers had following temps and changing today to Zalman
CNPS-9500s made only about 1 deg. C difference:

2D:
CPU1 55C
CPU2 63C

3D (gaming):
CPU1 59C
CPU2 65C

Video Encoding (Nero):
CPU1 61C
CPU2 69C

I've heard from some other people with this motherboard that they had no temperature problems until they flashed from 1.01 to 1.02 (latest) BIOS. My system is new and never ran in 1.01 so I didn't experience this. I heard a snippet about Tyan working on a new 1.02 revision for this problem but I've seen no evidence on Tyan's site of this. Anyone have info to help?

Disclaimers:

(a) I used arctic silver. I put just a dab and spread it around very thin
over entire processor. Seated both heatsinks tight against the processors.

(b) Room is cool.

(c) Air is sucked into bottom front of this Antec Titan server case (up an
inch off ground) by a 92mm case fan I added. Air exits case
via a 120mm fan (was part of case) up by the CPUs. Ambient is about 27C.

(d) Running the Zalman 9500s at highest speed does make a difference but
yeah, that's the speed I'm running them at; highest.

(e) I've used both Tyan's sysmon (patched for S2895 board) and Speedfan 4.27 and they report exact same temps.

Answers: Tyan Thunder K8WE S2895 Opteron 252s run hot ( 2CPU.com Discussion Forums Motherboards )
Tyan Thunder K8WE S2895 Opteron 252s run hot

Do you have a picture of your cable management?

Quote:
(a) I used arctic silver. I put just a dab and spread it around very thin
over entire processor. Seated both heatsinks tight against the processors.
That wasn't necessary. The processors IHS is made of copper and it's nickel plated. Hence, the point of the heatspreader. No need to manually spread it around the slug itself. The heatsink will make its own contact with it and spread the compound on its own when mating with it. A a tear drop in the center is all that is needed.

Are you using AS5 or AS Ceramic?

If you haven't done so previously, use 91% Isopropyl and a Kleenix tissue to remove the microbs from the surfaces of the IHS and the bottom of the heatsink itself. Apply the compound again. Supposed to let the processor idle in for 4 hours before charging it up with activity so the compound can mature.

What kind of fan is on the exhaust? I'm not familiar with that chassis yet, but I would assume it's an Antec Tri-cool 120mm? Usually are adjustable Lo-Med-Hi selector on it. Which 92mm fan are you using? Know the model number of it?

What kind of power supply are you using as well? A PSU with 120mm on the bottom or 80mm on the bottom?

Another member has a same chassis, but no complaints as of yet.

ReMeDy

Tyan Thunder K8WE S2895 Opteron 252s run hot

Uh oh, scary, cuz you know what.. i just ordered a K8WE with dual 254s and the zalman 9500's.......

One thing you can try doing, is remove your sinks, remove the thermal paste with acetone/100% isopropyl alcohol off the processor and heatsink, be careful about acetone & the pins. Only put a dab of as5 in the center of the cpu IHS, the size of a grain of rice 3-4mm. Do not spread it around, after you put the dab on, place the heatsinks straight onto the cpu, twist it a few degrees back and forth a few times, then screw it on.

AS5 directions - http://www.arcticsilver.com/arctic_s...structions.htm scroll down to 9.

Also, if you havent already, place the heatsinks with fans blowing in the same direction

z-design

Tyan Thunder K8WE S2895 Opteron 252s run hot

Quote:
Also, if you havent already, place the heatsinks with fans blowing toward each other, like a wind-tunnel effect
I'm not sure if I'd agree, but try it if you have time to fool with it. I'd think all the fans should blow in the same direction.

This may sound a bit nutty, but you may also try using your rear exhaust fan as an intake...but you probably have your heatsinks blowing towards the rear, and that would need to change. I did that on my Prescott box, punched a hole on the top of the case, added a fan exhausting up and out, and I can actually run it at full load with the panels on Zalman makes a good product, and I'm a huge fan of heatpipe heatsinks. You should be able to get the temps down. Keep us posted. Good luck!

1st_Loin

Tyan Thunder K8WE S2895 Opteron 252s run hot

i have just purchased this mobo, and after checking several forums, some are having
similar issues with the high temp readings after flashing to the 1.02. as for air flow/fan
direction, front of case sucks, rear exausts, and the 9500s should draft towards
the rear exaust fan. to exaust. as for a thermal interface alternative, i have been
using this with fantastic results with athlon cpus:
http://www.coollaboratory.com/en/

m.oreilly

Tyan Thunder K8WE S2895 Opteron 252s run hot

I have exactly the same motherbord as ALL is watercooled with koolance items :
CPU's of course but also the 3 3nvidia and amd chipsets and all the hd's and the memory and the video card of course and the two adaptec 2230s raid cards!

The temp read in all the system is of 39/42

cgf

Tyan Thunder K8WE S2895 Opteron 252s run hot

I can tell you that I have bios 1.01 and my temps with zalman 7700cu in the bios is 32 and 36 degrees idle (I"m also running the 252s troy core). Just to give you a fram of reference for the older bios and some very nice cooling heatsinks.

codename47

Tyan Thunder K8WE S2895 Opteron 252s run hot

My MOBO same one shows 68

mutant

Tyan Thunder K8WE S2895 Opteron 252s run hot

http://www.tyan.com/support/html/sof...utilities.html

Blake

Tyan Thunder K8WE S2895 Opteron 252s run hot

Yes thanks. I installed it still 61

mutant

Tyan Thunder K8WE S2895 Opteron 252s run hot

[quote=mutant]My MOBO same one shows 68

ReMeDy

Tyan Thunder K8WE S2895 Opteron 252s run hot

According to that link they are talkingabout case temperature of 67

mutant

Tyan Thunder K8WE S2895 Opteron 252s run hot

[quote=mutant]According to that link they are talkingabout case temperature of 67

m.oreilly

Tyan Thunder K8WE S2895 Opteron 252s run hot

I don't know mate :-) Are you saying that 49

mutant

Tyan Thunder K8WE S2895 Opteron 252s run hot

"Max Case Temp" is the maximum temperature allowable, as measured on the exterior of the processor package, in the middle directly above the chip die. (under the heatsink)

It is not the maximum internal ambient temperature of the system enclosure.

The term "case" refers to the processor's package, not the system case.

Flathead74

Tyan Thunder K8WE S2895 Opteron 252s run hot

Damn so I am 1

mutant

Tyan Thunder K8WE S2895 Opteron 252s run hot

I've got dual 252's with the Zalman Reserator 1 water cooler and using Tyan's system monitor I'm reporting 55,58 after a couple of hours. (it takes at least 30 minutes for the tank to heat up). It is my understandings that these temps are "core" temperatures. If I touch the water blocks, they are very slightly warm to the touch.. I wouldn't call them "hot" at all. The water in the tank is less than 20C. I think the water cooler is doing a good job of cooling the 2 cpu's and the Radeon X850. But the high temps do have me a little concerned...

Bill

wsaharem

Tyan Thunder K8WE S2895 Opteron 252s run hot

Quote:
Originally Posted by wsaharem
I've got dual 252's with the Zalman Reserator 1 water cooler and using Tyan's system monitor I'm reporting 55,58 after a couple of hours. (it takes at least 30 minutes for the tank to heat up). It is my understandings that these temps are "core" temperatures. If I touch the water blocks, they are very slightly warm to the touch.. I wouldn't call them "hot" at all. The water in the tank is less than 20C. I think the water cooler is doing a good job of cooling the 2 cpu's and the Radeon X850. But the high temps do have me a little concerned...

Bill
tempting fate would be a better discription...

m.oreilly

Tyan Thunder K8WE S2895 Opteron 252s run hot

I've got two opterons 270. They run at about 40-50C if my fans are blowing at full speed. If i disabled my in-take/out-take fans then they run about 66C.

sehh

Tyan Thunder K8WE S2895 Opteron 252s run hot

I spoke with "Tech 5" at Tyan about this issue. The 1.01 bios temp readings are not accurate according to him, and the higher 1.02 readings are in fact correct.

I said to him: "Well maybe I need a Reserator". He said, "Yeah, you probably do".

I'm seeing 65-69 now with two Zalman fans. The case gets fairly hot as well. I'm probably going to end up water-cooling this thing, especially when summer comes as my air-conditioning is not too strong and it is too noisy.

Smoov

Tyan Thunder K8WE S2895 Opteron 252s run hot

Quote:
Originally Posted by Smoov
I spoke with "Tech 5" at Tyan about this issue. The 1.01 bios temp readings are not accurate according to him, and the higher 1.02 readings are in fact correct.

I said to him: "Well maybe I need a Reserator". He said, "Yeah, you probably do".

I'm seeing 65-69 now with two Zalman fans. The case gets fairly hot as well. I'm probably going to end up water-cooling this thing, especially when summer comes as my air-conditioning is not too strong and it is too noisy.
This "tech 5" has to be full of it. Since I flashed to 1.02 my temps went up on my watercooled system. I have Swiftech 6002's on my Opterons and they read 47C and 48C at room temp of 29C. My 7800Gt reads 34C. My temps don't vary much when the CPU's are stress. My GT gets up to 38C with it being overclocked running PCmark05. So to let you all know, thats what my system tells me.

MeJohnM

mejohnm

Tyan Thunder K8WE S2895 Opteron 252s run hot

i'm running bios 1.02, a pair of zalman CNPS7000B-Cu LEDs...while using Tyan tools for monitoring...I surfed the internet at a cozy 42 degrees celcius
the bios displayed the same temp, so i removed the tool after confirmation


kirkmears

Tyan Thunder K8WE S2895 Opteron 252s run hot

I've only removed my heatsinks a couple of times, but the Ceramique has always left a better "impression" than the AS5, not to mention superior temps (upwards of 5C). It seems to me the AS5 tends to run out from the processor, whereas the Ceramique tends to lock up like glue.

I'd say those 65C temps are from poorly installed heatsinks. Yank them off, clean the surfaces well with isopropyl (and don't forget to buff off the residue left from the isopropyl!!), and use a very generous amount of Ceramique. I usually put about the size of an average green pea, perhaps a 5mm sphere, and make sure I seat the heatsink as flatly as possible.

tycho102

Tyan Thunder K8WE S2895 Opteron 252s run hot

Are you people freaking kidding me? I have dual 254's and at idle they run 30 for cpu#1, 32/35 for cpu2 and I'm using XP90's. Under load they don't get much hotter. Maybe I'm missing something. Btw, I'm running bios 1.01.

Edit: Although I do admit, I only have a pci video card in the system right now and it's not generating much heat, but come on.

Blake

Tyan Thunder K8WE S2895 Opteron 252s run hot

I have dual 254s on a k8we, and in the bios settings, it reports 57c and 54c idle. I use dual zalman 9500s in a lianli v1200 case..

z-design

Tyan Thunder K8WE S2895 Opteron 252s run hot

Quote:
Originally Posted by Blake
Are you people freaking kidding me? I have dual 254's and at idle they run 30 for cpu#1, 32/35 for cpu2 and I'm using XP90's. Under load they don't get much hotter. Maybe I'm missing something. Btw, I'm running bios 1.01.
Blake, ~30C is normal for an Opteron while idle and ~40-50C is normal while on full load.

I believe the above people are using improper methods and as a result their temps are rather high. Two reasons for this:

1) Most heatsinks and fans on the market are just crap. Original AMD heatsinks should be fine for everyone, unless you want to overclock.

2) Most of the above people use their system as a home workstation, as a result they've done anything they could to make the system low-noise. Thus, raising temperatures.

Lets face it, if everyone used the AMD heatsinks with several big 120mm case fans running at 8,000rpm or more then everyone will be at 40-50C. Thats as loud as two airconditioning usings in one.

Ofcourse my system is going into a server room so noise isn't an issue.

sehh

Tyan Thunder K8WE S2895 Opteron 252s run hot

Both my cpu's are watercooled and I have 18 and 19 degrees on them (and I'm running 1.02 bios). I saw a 12 to 15 deg improvement going from Zalman's CNPS7700Cu's.

Cooling system consist of:

Asetek Antartica cpu blocks (1/2" od pipes, 10mm id). I made up some different mountings for these so that I could use the original backplates which are considerably stronger against the board's pcb. Asetek's method involves a small screw with a derlin washer behind the motherboard, no backplate at all! I didn't like this. My adaptors simply screw into the backplates (no6, 32tpi NC thread) and have the correct thread for the blocks' mounting screws, M4, (and work out at the same length exactly).

Thermochill HE120.3 Radiator, mounted the rad outside the case.

Swiftech MCP655 pump and a few other misc. bits and bobs to finish off.

All seems to work nice and quietly, the case/graphics fans are noisier than the watercooling.

ger

Tyan Thunder K8WE S2895 Opteron 252s run hot

>>Both my cpu's are watercooled and I have 18 and 19 degrees on them (and I'm running 1.02 bios). I saw a 12 to 15 deg improvement going from Zalman's CNPS7700Cu's.<<

What is the ambient temperature in the room where you are getting 18 and 19 degrees? Farenheight is fine.

edge

Tyan Thunder K8WE S2895 Opteron 252s run hot

I don't have a thermometer here but I'd imagine the ambient temp to be 13 to 15 celcius (Fahrenheit I hardly ever think of or use), I'm up in the attic and it's cool here, sort of hands getting cold and needing a sweater temperature.

The cpu temps were reported through TSM.

Just had a quick check now, after running 4x fah for 2.5 hours one cpu is at 24 and the other at 25, system temp is at 30. My fingers are cold after being here 10mins!

ger

Tyan Thunder K8WE S2895 Opteron 252s run hot

ger,

The reason I asked is 18 celcius is about 64 farenheight which is fairly cold espescially considering most basic WC systems on duals can maintain about a 10 degree differential from ambient under load - I figured it had to be a cold room for your temps to be accurate. If ambient was normal room temperature then I was looking for active cooling.

edge

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