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Topic Title: AMD Phenom 9850 BLACK EDITION CPU Temps
Topic Summary: Having hi temps with a ZALMAN 9500A 92mm 2 Ball CPU Cooler
Created On: 05/30/2008 12:18 PM
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 05/30/2008 12:15 PM
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Adam F
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better case cooling . you might need to do a little case modding to improve overall threw put of air flow.
 05/30/2008 12:18 PM
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saiello
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Hello,

I recently upgraded my computer to a:

AMD Phenom 9850 BLACK EDITION 2.5GHz Socket AM2+ 125W Quad-Core Processor Model
ZALMAN 9500A 92mm 2 Ball CPU Cooler - Retail
G.SKILL 4GB RAM
ASUS M3A32-MVP Deluxe
ZALMAN ZM850-HP Continuous 850W
I have 3 80mm fans in my case, 2 in the front for air intake and one in the back behind the ZALMAN cooler for exit


My processor seems to be running very hot, about 47C deg and getting up to 60C deg under gaming load.

With the cooler this seems very hot, I'm using the Arctic 5 thermal paste.

Any ideas?

Thanks

-------------------------
AMD Phenom 9850 BLACK EDITION 2.5GHz
ASUS M3A32-MVP Deluxe AM2+/AM2 AMD 790FX
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066
Western Digital Raptor WD740ADFD 74GB 10000 RPM SATA
ZALMAN ZM850-HP Continuous 850W ATX12V V2.2
ZALMAN 9500A
 05/30/2008 06:24 PM
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Kab
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Adam I see your post as the thread opener for some reason?
 05/30/2008 06:56 PM
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Super XP
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Originally posted by: Adam F

better case cooling . you might need to do a little case modding to improve overall threw put of air flow.

Zalman is not a great company for CPU cooling IMO.

-------------------------
AMD FX 8120 @ 4.40GHz (8-Cores)
Asus Crosshair V
G-Skill RipJaw DDR3-1866 16GB (4 x 4GB)
Corsair H100
Corsair 180GB SSD Force Series 3
Windows 7 Ult. x64
 05/30/2008 07:55 PM
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nhs ice
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super xp , what ya know about zalman? that 9500 should run his cpu in mid 40 only, I have both zalman 9500 and thermalright 120 extreme. They both cool cpu in term of temperature can be rated almost the same foo. He just need a better case ventilation that is it.


saiello a 80mm fan for exhaust is not adequate, u need like a 120mm fan. try to mod that 80mm fan slot into a 120mm slot and u will see temp drop for sure.
 05/31/2008 12:02 AM
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Super XP
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Agreed. I just had bad experiences with Zalman CPU heatsinks and fans.
Maybe they upped there game but back a few years ago, they were not good IMO.

-------------------------
AMD FX 8120 @ 4.40GHz (8-Cores)
Asus Crosshair V
G-Skill RipJaw DDR3-1866 16GB (4 x 4GB)
Corsair H100
Corsair 180GB SSD Force Series 3
Windows 7 Ult. x64
 05/31/2008 06:34 PM
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saiello
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Well I figured part of the problem. I'm a retard. I put the ZALMAN on backwards so it was blowing the hot air away from my exit fan. My CPU is running at 43 to 45 C idle, and is at about 50 C under load. I do think I need some more air flow however. I'm thinking of moding the side of my case to fit in a huge 220 mm fan.

-------------------------
AMD Phenom 9850 BLACK EDITION 2.5GHz
ASUS M3A32-MVP Deluxe AM2+/AM2 AMD 790FX
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066
Western Digital Raptor WD740ADFD 74GB 10000 RPM SATA
ZALMAN ZM850-HP Continuous 850W ATX12V V2.2
ZALMAN 9500A
 06/01/2008 02:11 AM
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Super XP
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I have a 220mm Fan on the top of my case. It moves a dump load of air with very silent operation. Go for it,

-------------------------
AMD FX 8120 @ 4.40GHz (8-Cores)
Asus Crosshair V
G-Skill RipJaw DDR3-1866 16GB (4 x 4GB)
Corsair H100
Corsair 180GB SSD Force Series 3
Windows 7 Ult. x64
 06/02/2008 07:33 AM
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s0nniez
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I'm having a bit of unusual temps also.

My idle temp is 46c, load is 52c (at night) 50 idle, 56 load (day)

I applied Arctic Silver 5 paste on it about 2 times, I think I got it right now.
For some reason, Everest shows my cores about 51c idle, 59c load (night) and 54c idle, 61c load (day)

The rest of the temperature seems fine:
MB: 33/35
GPU: 42/56
HDD: 30/31

I am running on stock cooling, is this normal?

Board: M3A32-MVP Deluxe

-------------------------
AMD Phenom 9850BE @ 2.81GHZ (1.28v)
ASUS M3A32-MVP Deluxe/Wifi
2x2GB Corsair Dominator 5-5-5-15 1070mhz (2.1v)
XFX Geforce 8800GTS 512MB 775/1035
Corsair 750TX 750W PSU
WD 500GB HDD
Windows Vista Ultimate 32-bit
 06/02/2008 10:58 AM
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Kab
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s0nniez,

What does CoreTemp read?
Can you give a screenshot of Everest sensors page please?
Are you running stock voltages/speeds?

Your motherboard is known to give higher temperature values than some other motherboards. It's the offsets they've added in the BIOS but below 75°C is well within range for Phenom 9850 BE stability.

I've just checked a setup from work and it reads very similar to yours but using a TRUE with 28°C ambient air temperature and 1.450v 3.059 GHz idle/load.
 06/02/2008 04:54 PM
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s0nniez
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http://s0nniez.pictiger.com/images/15502314/

I do have it overclocked a bit but the voltage is stock, and when it's not clocked, temperature drops about 1c, cores about 2c

I'm thinking of getting an aftermarket cooler, but if this is normal then I'm glad to hear, thanks.

-------------------------
AMD Phenom 9850BE @ 2.81GHZ (1.28v)
ASUS M3A32-MVP Deluxe/Wifi
2x2GB Corsair Dominator 5-5-5-15 1070mhz (2.1v)
XFX Geforce 8800GTS 512MB 775/1035
Corsair 750TX 750W PSU
WD 500GB HDD
Windows Vista Ultimate 32-bit
 07/01/2008 01:18 PM
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Silentscooter
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Yep my 9850 idles at about 44-45 with a Zalman 9700 copper at stock settings. No oc at all.

after OC'ing to 2.9 it idles at 47ish.

My phenom 9500 (2.2) idled at 27 to 32 depending on the temp of my house. So I was surprised to see a big jump in temp with the 9850 at stock of 2.5, showing temps at 44C.

But I guess this is normal as people are stating.

-------------------------
M3N HT Deluxe
Phenom X4 940, watercooled
4GIG OCZ 1066, SLI ready
BFG GTX 260 (216) in SLI
Antec 850 Watt
Case Coolermaster HAF
Gaming @ 1680x1050
 07/01/2008 01:20 PM
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Silentscooter
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Oh ya, my case has good cooling so that is not an issue.

-------------------------
M3N HT Deluxe
Phenom X4 940, watercooled
4GIG OCZ 1066, SLI ready
BFG GTX 260 (216) in SLI
Antec 850 Watt
Case Coolermaster HAF
Gaming @ 1680x1050
 07/01/2008 01:23 PM
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alan2273
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I use the stock cooler and mine idles at 50c, under load it goes up to 57c.
as it causes no problems I have not bothered with an after market cooler.
 07/01/2008 02:23 PM
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Kab
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s0nniez I can't see any image through that link ?
Anyway, maybe your motherboards are overvolting the processor. At stock all the ones we manage have never gone above 35 to 44°C idling.

Obviously this greatly depends on the ambient heatsink temperature.
 07/02/2008 06:36 AM
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kazgirl
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Hi s0nniez,

Link works fine for me, and I'd say for stock cooling its about right...!!

My temps are exactly 10C less than yours but as I'm using water-cooling its about the sort of temp difference I'd expect to see.

My setup is very similar to yours:

Asus M3A32-MVP
Phenom 9850 @ 2.8Ghz 1.35v (14 x 200)
2 x 2GB G.Skill DDR2-1066 RAM @ 1067Mhz (on a side note does anyone know why the ASUS dividers are DDR2-800 then DDR2-1067, not DDR2-1066..???)
Powercolor HD3870XT
Modded Water ccooling - 2 x dual 120mm fan chilltec radiators, 1ltr reservoir capacity.


Temps are:

CPU Idle: 35/36C CPU Load: 41/42C
Cores Idle: 36/37C Cores Load: 45C

Mobo: 33C
GPU: 39C
HDD: 31C

I'd say that a lot will depend on your ambient temperature as well... generally I use a rule of using ambient temp plus 20C for an idle temp for a stock temp, however you need to make allowance for higher TDP CPU's and add a few degree's....

In the case of the 9850, its a higher TDP CPU, so I'd add between 3 and 5C, and if overclovking particularly with increased Vcore then as much as 10C.

As long as you keep the temps within the safe range specified then you should be OK..

If I'm honest I have some confusion over the safe temps for the CPU, as Kab has previously said that anything under 75C is OK, but the AMD specs for the CPU list a max temp of 61C (Seen Here), I know that KAb may be privy to more information due to his contact in the industry, but I choose to err on the side of caution and use the AMD published 61C as a guideline Temp.

So given that your daytine temp is hitting 61C load, then you might want to consider investing in an aftermarket HSF.

Best wishes

Kaz

-------------------------

3DMark06 = 20717 / 3DMark Vantage = P13618 / My Overclock Guide / My Troubleshooting Guide

Edited: 07/02/2008 at 06:42 AM by kazgirl
 07/02/2008 07:10 AM
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Datsun1600
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Asus M3A32-MVP Deluxe
Phenom 9850 @ 2.972Ghz 1.3675v (14.5 x 205)
2 x 1GB Crucial Ballistic Tracers
Thermalright IFX-14 with 2 x 120mm fans
Coolermaster Centurion 590 case

The above does Folding@Home 24/7, full load temp of 44C, with an ambient of 23C.

Datsun 1600

-------------------------
Folding as IbeFolding2 Folding and overclocking on: 4 x 9800GTs and a Q9450.
 07/02/2008 03:01 PM
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Kab
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Karen, you are running around 150W TDP and still around 15 - 20°C lower load than his at 125W
Stock "temperature" is quite low unless your motherboard has problems and is modifying the temperature readings or i.e., reading ACPI temperature. That's not core temperature and a motherboard anomaly usually.
CPU Idle: 35/36C CPU Load: 41/42C
Cores Idle: 36/37C Cores Load: 45C

If ASUS had not modified AMD K10 processor readings (held and accessible in a known CPU Northbridge PCI registers) your core temperatures, like on nearly every other AM2+ motherboard, would've read lower than the CPU temperature in Everest. Always. The CPU temperature is the ACPI temperature and is not measured but by the hardware monitoring chip on your motherboard which then adds offset values to it to make it correct. It gives usually 5 - 10°C higher than the actual core reported temperature figures using Phenom processors, B2 and B3. Bear that guideline in mind to avoid error. Your actual temperature value, the same settings, but in a different board that does not alter the Phenom core temperature readout before displaying it to you will be lower, 10°C lower. That I know for a fact having used many of the AM2+ motherboards including yours.

AMD gives a guideline on maximum junction temperature as you posted in the link but we don't know that operational temperature until you measure it manually. No K10 CPU gives you temperature readings in °C at all, something I've posted about before. I've seen it written or understood online by very few knowledgeable though. I outlined the basics and where it is explained after my 3rd post here: http://forums.amd.com/forum/me...5893&messageid=890910

That explains the discrepancy between 60°C online ratings and what software shows you and why the software readable safety value is much higher than 80°C. I wouldn't go over 75°C though, which is personal preference since;

a) It is very hot. SiO silicon traditionally loves temperature between 15 - 45°C, not higher, so to keep it within this range means a lower power consumption and far better integrity.
b) The stock heatsink cannot move enough air out of it, so 75°C of air will be trapped in there further aggravating surrounding component, space and motherboard temperatures.
c) We noticed in our testings that in particular, the B2 stepping Phenom processors became less stable after running >75°C 100% loaded for a period just over 2 months. Samples were only two systems, but results accurate and reproducible enough to conclude, so we increased the system and processor fan-speeds on all our production system to maintain temperatures lower than 70°C at all times thereafter, under all loads.

The desktop I worked on this morning at work was Phenom 9850 using the stock cooler at 2.9 GHz 1.362v. The core temperature readout from the registers showed it idling 40°C without C'n'Q activated. Just as a reference.
 07/11/2008 11:24 AM
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Herb.Oxley
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I have an AMD Phenom 9850 BE on an ASUS M3A78-EMH HDMI motherboard and have noticed the temperature reading provided by ASUS PC-Probe II is about 4°C. hotter than the one in AMD Overdrive CPU Status.
It would be nice if people could mention AMBIENT temperature along with their CPU temps.

Something I've noticed about this setup is when sustained CPU load on all 4 cores goes to about 75-80% the processor "downshifts" to Vcore of 1.10v ( from 1.30v) and MHZ of 1250; is this the action of Cool n Quiet or is it something else?

With an ambient temp of about 81°F. (27°C.) I have AMD Overdrive reporting on light load 41°C. and PC-Probe II says 44°C.
To be fair I'm using an old Supermicro full-tower case with the side door open for now until I can do some metalwork on the top cover to add a fan or 2.
Now I'm running a down-and-dirty stress test of a virus scan, WinZip and ALzip making 2 very large files.
PC Probe II says 49-50°C. while AMD OD bounces around between 43-51°C.

System details:
ASUS M3A78-EMH HDMI motherboard
AMD Phenom 9850 Black Edition 2.5 GHz (not currently overclocked)
4 GB (4 x 1 GB) Crucial DDR 800 MHz memory
Seagate X15 (15000 rpm) 18 GB hard drive (system disk)
WD 3200JB 320 GB IDE drive
ATI integrated video
RealTek integrated Ethernet and audio
PC Power & Cooling 500 W PSU
Windows XP Professional SP3 (32-bit)

Supermicro full-tower case (vintage ca. 2000)

Edited: 07/11/2008 at 01:10 PM by Herb.Oxley
 12/15/2009 09:18 PM
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Pauul_
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I also have a AMD Phenom Black edition...but mine runs at 47 degrees at idle..and up to 56 degrees when playing modern warfare 2...is that normal ???
i have 1 cooling fan(cooler master real power pro 650w) at the back..

http://pizza.pixa.us/images/18613383/%20untitled

-------------------------
overheat.~~

Edited: 12/15/2009 at 09:32 PM by Pauul_
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