Re: Opteron 250 Overheating
Nick Holland wrote: something is wrong. Any good computer, surely any server, should be able to run at 100% proc load indefinitely, regardless of the OS. Some laptops will have issues with this test, maybe some junky home-oriented machines might, Yes that is true. My laptop started shutting down with a Terminal overexposure message every time is on longer than an hour, a year after I bought it. I run OpenBSD, but a friend of mine has exactly the same laptop always running Windows and has the same problem. Need to keep a book under it, there by giving the heat more change to escape. Now I can still use it, longer than 30 minutes. To use it really on my lap, is impossible, both my lap and the top will burn ;) - ls
Re: Opteron 250 Overheating
On 2010-3-15 11:47 AM, Ludo Smissaert wrote: ... Now I can still use it, longer than 30 minutes. To use it really on my lap, is impossible, both my lap and the top will burn ;) The ln2 reservoir may be empty. Those dry out quickly even when the machine is not in use. Seriously, do you find a different using the cool running mode of APM? Have apmd in your start up routines and then use apm -C to switch to cool running. It will also make a difference in how long you can work on a single charge. /Lars
Re: Opteron 250 Overheating
Lars Nooden wrote: The ln2 reservoir may be empty. Those dry out quickly even when the machine is not in use. Interesting, did not know that. Probably designed to run empty after two years or so. Guess I can't have it refilled at the drugstore ;) Seriously, do you find a different using the cool running mode of APM? Have apmd in your start up routines and then use apm -C to switch to Haven't used it, but now I have it running, it seems to make a difference indeed. Thanks for the tip. Regards, -ls
Re: Opteron 250 Overheating
On 3/15/2010 5:47 AM, Ludo Smissaert wrote: Yes that is true. My laptop started shutting down with a Terminal overexposure message every time is on longer than an hour, a year after I bought it. I run OpenBSD, but a friend of mine has exactly the same laptop always running Windows and has the same problem. Need to keep a book under it, there by giving the heat more change to escape. Now I can still use it, longer than 30 minutes. To use it really on my lap, is impossible, both my lap and the top will burn ;) If you know how to disassemble laptops, open the thing up and remove the dust from the radiator on the heat pipe. If you don't know how to disassemble laptops (or don't care to) blow some compressed air through in the opposite direction of the air flow. If you do take it apart, make sure you have some heatsink grease on-hand, as the factory stuff may look (and function) like dried toothpaste. Don't spend extra on special grease, it doesn't really make a difference.
Re: Opteron 250 Overheating
On Mon, Mar 15, 2010 at 08:02:50AM -0400, Steve Shockley wrote: If you do take it apart, make sure you have some heatsink grease on-hand, as the factory stuff may look (and function) like dried toothpaste. Don't spend extra on special grease, it doesn't really make a difference. Laptops often have thermal pads, which can't be replaced with thermal paste. Better not remove it unless you know what you're doing. The pad is nearly impossible to re-use, dust will stick to it and it'll be unusable. Snake oil thermal pastes are just a rip-off, though.
Re: Opteron 250 Overheating
We are a service company and have removed many heatsinks that had thermal pads and re-applied using thermal grease (of course this is after very carefully removing the thermal pad with plastic scraper and alcohol) and have never had one come back to us with a thermal issue again. Many times the system even runs cooler according to our clients than when they first got it - although that could just be perception. Of course - it is your system - use your judgement and do what you feel best. Again we have done this many times and we warrant our work and have not had one come back yet. As to the type - I have not seen a tremendous difference in the high end vs. regular brands on the market. - Good Luck -Original Message- From: owner-m...@openbsd.org [mailto:owner-m...@openbsd.org] On Behalf Of Jussi Peltola Sent: Monday, March 15, 2010 8:12 AM To: misc@openbsd.org Subject: Re: Opteron 250 Overheating On Mon, Mar 15, 2010 at 08:02:50AM -0400, Steve Shockley wrote: If you do take it apart, make sure you have some heatsink grease on-hand, as the factory stuff may look (and function) like dried toothpaste. Don't spend extra on special grease, it doesn't really make a difference. Laptops often have thermal pads, which can't be replaced with thermal paste. Better not remove it unless you know what you're doing. The pad is nearly impossible to re-use, dust will stick to it and it'll be unusable. Snake oil thermal pastes are just a rip-off, though.
Re: Opteron 250 Overheating
On 3/13/2010 5:27 PM, Jeff Ross wrote: I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. If your next one does the same thing, it might be interesting to see if the processor temp is actually that high.
Re: Opteron 250 Overheating
Steve Shockley wrote: On 3/13/2010 5:27 PM, Jeff Ross wrote: I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. If your next one does the same thing, it might be interesting to see if the processor temp is actually that high. !DSPAM:4b9d208373307231010022! How can you tell that without relying on the sensors in the motherboard?
Re: Opteron 250 Overheating
On Sun, Mar 14, 2010 at 11:50:56AM -0600, Jeff Ross wrote: Steve Shockley wrote: On 3/13/2010 5:27 PM, Jeff Ross wrote: I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. If your next one does the same thing, it might be interesting to see if the processor temp is actually that high. !DSPAM:4b9d208373307231010022! How can you tell that without relying on the sensors in the motherboard? It's unfortunate that we all had to live through the Great Thermometer Genocide of '97, or else there'd be a simple answer to your problem.
Re: Opteron 250 Overheating
On Sunday 14 March 2010 14:31:28 Bret S. Lambert wrote: On Sun, Mar 14, 2010 at 11:50:56AM -0600, Jeff Ross wrote: Steve Shockley wrote: On 3/13/2010 5:27 PM, Jeff Ross wrote: I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. If your next one does the same thing, it might be interesting to see if the processor temp is actually that high. !DSPAM:4b9d208373307231010022! How can you tell that without relying on the sensors in the motherboard? It's unfortunate that we all had to live through the Great Thermometer Genocide of '97, or else there'd be a simple answer to your problem. I'd get a temperature probe and figure out how to stick it on the cpu. --STeve Andre'
Re: Opteron 250 Overheating
On Sun, 14 Mar 2010, STeve Andre' wrote: On Sunday 14 March 2010 14:31:28 Bret S. Lambert wrote: On Sun, Mar 14, 2010 at 11:50:56AM -0600, Jeff Ross wrote: Steve Shockley wrote: On 3/13/2010 5:27 PM, Jeff Ross wrote: I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. If your next one does the same thing, it might be interesting to see if the processor temp is actually that high. How can you tell that without relying on the sensors in the motherboard? It's unfortunate that we all had to live through the Great Thermometer Genocide of '97, or else there'd be a simple answer to your problem. I'd get a temperature probe and figure out how to stick it on the cpu. --STeve Andre' I think I'll pass on this one. If the motherboard sensors are that far off I don't want the server online anyway. Jeff
Re: Opteron 250 Overheating
On 3/14/2010 2:53 PM, Jeff Ross wrote: I think I'll pass on this one. If the motherboard sensors are that far off I don't want the server online anyway. Agreed, but I think the sensors are in the CPU. If you happen to have a meter and thermocouple laying around, or one of those IR thermometers with the laser (useful for measuring the cat's temperature) it might be nice to know if the CPUs are actually heating up that much, or if it's a hardware or software problem. It also might be interesting to see if the heat sinks are heating up. If they're not, but the CPUs are, then you're not transferring the heat away from the CPU for some reason. You can probably test this yourself if your thumb is properly calibrated.
Re: Opteron 250 Overheating
Time how fast the blister forms on your right thumb. Repeat multiple trials with your left thumb on a temp calbrated hot plate. There's your answer. Seriously, 40s should feel hot. 80s should burn. 100s should leave a blister. cheers bruce On Sun, Mar 14, 2010 at 11:50:56AM -0600, Jeff Ross wrote: Steve Shockley wrote: On 3/13/2010 5:27 PM, Jeff Ross wrote: I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. If your next one does the same thing, it might be interesting to see if the processor temp is actually that high. !DSPAM:4b9d208373307231010022! How can you tell that without relying on the sensors in the motherboard?
Re: Opteron 250 Overheating
On 3/14/2010 4:11 PM, Bruce O'Neel wrote: Seriously, 40s should feel hot. 80s should burn. 100s should leave a blister. True, but even with 100C core temps the heat sink will probably be nowhere close to that. My apologies if following my advice would have changed your thumbprint.
Re: Opteron 250 Overheating
On Sun, 14 Mar 2010 17:10:07 -0400 Steve Shockley steve.shock...@shockley.net wrote: On 3/14/2010 4:11 PM, Bruce O'Neel wrote: Seriously, 40s should feel hot. 80s should burn. 100s should leave a blister. True, but even with 100C core temps the heat sink will probably be nowhere close to that. My apologies if following my advice would have changed your thumbprint. And I thought your suggestion was intentional... http://www.popsci.com/technology/article/2009-12/chinese-woman-surgically-switches-fingerprints-evade-japanese-immigation-officers
Re: Opteron 250 Overheating
On 15/03/2010, at 10:10 AM, Steve Shockley wrote: On 3/14/2010 4:11 PM, Bruce O'Neel wrote: Seriously, 40s should feel hot. 80s should burn. 100s should leave a blister. True, but even with 100C core temps the heat sink will probably be nowhere close to that. My apologies if following my advice would have changed your thumbprint. If the core temp is 100, then the heatsink will still be hot enough to burn. If the core is 40 (as a previous poster indicated for a loaded system) then the heatsink will be comfortably warm. paulm
Re: Opteron 250 Overheating
On 3/14/2010 5:36 PM, J.C. Roberts wrote: And I thought your suggestion was intentional... http://www.popsci.com/technology/article/2009-12/chinese-woman-surgically-switches-fingerprints-evade-japanese-immigation-officers If Bruce O'Neel is a Japanese woman, then I apologize yet again.
Re: Opteron 250 Overheating
Jeff Ross wrote: ... As a followup, here's what I have done to try to alleviate this: I bought and installed the plastic air shroud using the passive heatsinks that came with the motherboard. System still overheats and shuts down within a couple of minutes. I bought 2 AMD brand active heatsinks, specific to this processor, and installed them. That meant I had to ditch the plastic air shroud, but the motherboard manual says that active heatsinks are suggested for 2U chassis and the air shroud was only $10. I also used new heat sink compound when I put everything together. System seems to run okay at idle. but make it work a little--like compiling a kernel or tar-ing up a big file and the temp indicator comes on and sysctl reports temps (on both the kate and lm sensors) finally exceeding 100 degrees C on one processor, with the other is not that far behind at over 80 deg C. At that point the system shuts down. I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. Did I just get a lemon motherboard/CPU combo? I still have a couple of days on my 30 day exchange if this is the case. something is wrong. Any good computer, surely any server, should be able to run at 100% proc load indefinitely, regardless of the OS. Some laptops will have issues with this test, maybe some junky home-oriented machines might, but I don't think I've actually seen a desktop with such an issue (lots of people run distributed apps :). Servers should be able to do 100% 24x7xlong-freaking-time, and if it fails, it needs to be fixed. Keep in mind, the tiniest piece of debris in between the CPU and heat sink can and will cause serious heat flow problems. And some heat sinks in many machines are very hard to verify that they are flat on the CPU (or that they touch the CPU at all). Nick.
Re: Opteron 250 Overheating
Jeff Ross wrote: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? Thanks! As a followup, here's what I have done to try to alleviate this: I bought and installed the plastic air shroud using the passive heatsinks that came with the motherboard. System still overheats and shuts down within a couple of minutes. I bought 2 AMD brand active heatsinks, specific to this processor, and installed them. That meant I had to ditch the plastic air shroud, but the motherboard manual says that active heatsinks are suggested for 2U chassis and the air shroud was only $10. I also used new heat sink compound when I put everything together. System seems to run okay at idle. but make it work a little--like compiling a kernel or tar-ing up a big file and the temp indicator comes on and sysctl reports temps (on both the kate and lm sensors) finally exceeding 100 degrees C on one processor, with the other is not that far behind at over 80 deg C. At that point the system shuts down. I'm at a loss as what to try next. If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. Did I just get a lemon motherboard/CPU combo? I still have a couple of days on my 30 day exchange if this is the case. Thanks to all, Jeff
Re: Opteron 250 Overheating
On Sun, Mar 14, 2010 at 12:27 AM, Jeff Ross jr...@openvistas.net wrote: Jeff Ross wrote: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. B The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. B If I can find one will that mean I don't need the active heatsinks? Thanks! As a followup, here's what I have done to try to alleviate this: I bought and installed the plastic air shroud using the passive heatsinks that came with the motherboard. B System still overheats and shuts down within a couple of B minutes. I bought 2 AMD brand active heatsinks, specific to this processor, and installed them. B That meant I had to ditch the plastic air shroud, but the motherboard manual says that active heatsinks are suggested for 2U chassis and the air shroud was only $10. B I also used new heat sink compound when I put everything together. System seems to run okay at idle. but make it work a little--like compiling a kernel or tar-ing up a big file and the temp indicator comes on and sysctl reports temps (on both the kate and lm sensors) finally exceeding 100 degrees C on one processor, with the other is not that far behind at over 80 deg C. At that point the system shuts down. I'm at a loss as what to try next. B If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. Did I just get a lemon motherboard/CPU combo? B I still have a couple of days on my 30 day exchange if this is the case. I'd get it all swopped out, something's very suspect there. I've got 8 Opteron 250 servers at the office that I regularly pound the heck out of (dist-cc cluster for bulk and repetitive building of software) and the hottest we've ever seen the CPUs go was 42deg. -- Opportunity is most often missed by people because it is dressed in overalls and looks like work. Thomas Alva Edison Inventor of 1093 patents, including: The light bulb, phonogram and motion pictures.
Re: Opteron 250 Overheating
On Sun, 14 Mar 2010, Ross Cameron wrote: On Sun, Mar 14, 2010 at 12:27 AM, Jeff Ross jr...@openvistas.net wrote: Jeff Ross wrote: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. B The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. B If I can find one will that mean I don't need the active heatsinks? Thanks! As a followup, here's what I have done to try to alleviate this: I bought and installed the plastic air shroud using the passive heatsinks that came with the motherboard. B System still overheats and shuts down within a couple of B minutes. I bought 2 AMD brand active heatsinks, specific to this processor, and installed them. B That meant I had to ditch the plastic air shroud, but the motherboard manual says that active heatsinks are suggested for 2U chassis and the air shroud was only $10. B I also used new heat sink compound when I put everything together. System seems to run okay at idle. but make it work a little--like compiling a kernel or tar-ing up a big file and the temp indicator comes on and sysctl reports temps (on both the kate and lm sensors) finally exceeding 100 degrees C on one processor, with the other is not that far behind at over 80 deg C. At that point the system shuts down. I'm at a loss as what to try next. B If I've read the AMD specs correctly these processors should not exceed 71 deg C but I see temps near that at inear dle. Did I just get a lemon motherboard/CPU combo? B I still have a couple of days on my 30 day exchange if this is the case. I'd get it all swopped out, something's very suspect there. I've got 8 Opteron 250 servers at the office that I regularly pound the heck out of (dist-cc cluster for bulk and repetitive building of software) and the hottest we've ever seen the CPUs go was 42deg. Thanks--that is exactly what I was loooking for. I've e-mailed the vendor. With luck I'll have replacement or at least my money back before long. Jeff
Re: Opteron 250 Overheating
On Wed, 3 Mar 2010 17:57:22 -0800 Christopher Ahrens n...@leviacomm.net wrote: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? that's how supermicro delivers the 2U systems, so i'd say yes, you won't need them. I had this problem before, an old Cereal box + Scissors + tape fixed it right up. But your mileage may vary I'm Jealous! --I've always wanted a cereal console.
Re: Opteron 250 Overheating
On Mar 4, 2010, at 9:18 AM, J.C. Roberts wrote: On Wed, 3 Mar 2010 17:57:22 -0800 Christopher Ahrens n...@leviacomm.net wrote: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? that's how supermicro delivers the 2U systems, so i'd say yes, you won't need them. I had this problem before, an old Cereal box + Scissors + tape fixed it right up. But your mileage may vary I'm Jealous! --I've always wanted a cereal console. I know it's only Thursday but... On a cereal console: - exit doesn't work; you must type cheerio - make release involves building Cap'n Crunchgen - the secret to attaining Cocoa Puffy privilege is using Special K (NOTE: you must use the Corn Pops shell) - you can mount ISO images with Fruit Loops OK, I'm done.
Re: Opteron 250 Overheating
On Thu, Mar 4, 2010 at 8:53 AM, daniel d...@redmountainfarm.net wrote: On Mar 4, 2010, at 9:18 AM, J.C. Roberts wrote: On Wed, 3 Mar 2010 17:57:22 -0800 Christopher Ahrens n...@leviacomm.net wrote: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? that's how supermicro delivers the 2U systems, so i'd say yes, you won't need them. I had this problem before, an old Cereal box + Scissors + tape fixed it right up. But your mileage may vary I'm Jealous! --I've always wanted a cereal console. I know it's only Thursday but... On a cereal console: - exit doesn't work; you must type cheerio - make release involves building Cap'n Crunchgen - the secret to attaining Cocoa Puffy privilege is using Special K (NOTE: you must use the Corn Pops shell) - you can mount ISO images with Fruit Loops What do you expect from an Alpha-bits release that barely Posts and requires you to be constantly running the file system Chex after the Kix start? :-D -B
Re: Opteron 250 Overheating
On Thu, 4 Mar 2010 06:18:30 -0800, J.C. Roberts wrote: I had this problem before, an old Cereal box + Scissors + tape fixed it right up. But your mileage may vary I'm Jealous! --I've always wanted a cereal console. And now you are a cereal offender! *** NOTE *** Please DO NOT CC me. I am subscribed to the list. Mail to the sender address that does not originate at the list server is tarpitted. The reply-to: address is provided for those who feel compelled to reply off list. Thankyou. Rod/ --- This life is not the real thing. It is not even in Beta. If it was, then OpenBSD would already have a man page for it.
Re: Opteron 250 Overheating
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Mar 05, 2010 at 09:01:13AM +1100, Rod Whitworth spoke thusly: On Thu, 4 Mar 2010 06:18:30 -0800, J.C. Roberts wrote: I had this problem before, an old Cereal box + Scissors + tape fixed it right up. But your mileage may vary I'm Jealous! --I've always wanted a cereal console. And now you are a cereal offender! *** NOTE *** Please DO NOT CC me. I am subscribed to the list. Mail to the sender address that does not originate at the list server is tarpitted. The reply-to: address is provided for those who feel compelled to reply off list. Thankyou. Rod/ --- This life is not the real thing. It is not even in Beta. If it was, then OpenBSD would already have a man page for it. OpenBSD, Breakfast of Champions! A nutritious kernel in every byte. Cocoa Puffys, even! Okay, exit, stage right. ;) - -- === Denny White - denny...@cableone.net GnuPG key : 0x1644E79A | http://wwwkeys.de.pgp.net Fingerprint: D0A9 AD44 1F10 E09E 0E67 EC25 CB44 F2E5 1644 E79A === () ASCII ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments === iEYEARECAAYFAkuQaU8ACgkQy0Ty5RZE55oKtQCgzGkFQEE/ipgRVWAmnWM595gD Jj8AoLkbWFmTcO2uuZhUTLulRppZXiue =xU6b -END PGP SIGNATURE-
Re: Opteron 250 Overheating
* Jeff Ross jr...@openvistas.net [2010-03-02 17:48]: Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? that's how supermicro delivers the 2U systems, so i'd say yes, you won't need them. -- Henning Brauer, h...@bsws.de, henn...@openbsd.org BS Web Services, http://bsws.de Full-Service ISP - Secure Hosting, Mail and DNS Services Dedicated Servers, Rootservers, Application Hosting
Re: Opteron 250 Overheating
Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? that's how supermicro delivers the 2U systems, so i'd say yes, you won't need them. I had this problem before, an old Cereal box + Scissors + tape fixed it right up. But your mileage may vary
Opteron 250 Overheating
I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. After a couple of minutes of running at essentially idle (I was in single user mode reconfiguring /etc/fstab to compensate for my LSI MegaRAID card being found *after* the external enclosure instead of before) when I began to hear an alarm and then shortly later the server shut down. The rear cpu heatsink was noticeably warmer than the front one. I let it cool and then when I restarted it I went directly to the system health tab in the bios. The first cpu was running at about 50 deg C and the second was in the hight 60s and climbing. The thermal cutoff point was set at 71. The amd specs (if I've found the right model in the pdf) say that the maximum is 70 or 71 deg C. I shut the server down before it got to the thermal cutoff point. Opterons are new to me. Have I already damaged the CPU? I can get an couple of active CPU heatsinks to replace the passive ones but if that chip is already damaged I'd rather lose some more time and return the motherboard while I still can. If I do put on the active heatsinks will that generally be enough to bring the temp back down to normal operating range? I thought I'd pull the passive heatsink tonight and clean and then reapply the thermal paste to see if that makes a difference. Thanks, Jeff Ross
Re: Opteron 250 Overheating
* Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. -- Henning Brauer, h...@bsws.de, henn...@openbsd.org BS Web Services, http://bsws.de Full-Service ISP - Secure Hosting, Mail and DNS Services Dedicated Servers, Rootservers, Application Hosting
Re: Opteron 250 Overheating
Henning Brauer wrote: * Jeff Ross jr...@openvistas.net [2010-03-02 16:59]: I bought a replacement supermicro motherboard off fleabay that has dual Opteron 250 @2.4GHz. The cpus have passive heatsinks, it is in a supermicro 2U chassis with 4 front fans. do you have the air shroud? this plastic thing that forms a tunnel over the heatsinks? it is required. No, the motherboard didn't come with that. If I can find one will that mean I don't need the active heatsinks? Thanks!
Re: Opteron 250 Overheating
On Tue, Mar 2, 2010 at 15:53, Jeff Ross jr...@openvistas.net wrote: Opterons are new to me. B Have I already damaged the CPU? B I can get an couple of active CPU heatsinks to replace the passive ones but if that chip is already damaged I'd rather lose some more time and return the motherboard while I still can. Very unlikely to have damaged the CPU; Opterons (and almost all modern CPUs) have thermal protection circuity to prevent this. -- ach
