Temp Diode on AthlonXP

[jclw]

So I see AMD finally decided to add temp diodes to the chips. <A HREF="http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24309.pdf" target="_new">http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24309.pdf</A> (AMD pages 23, 39, 40)

Do the newer motherboards (Asus A7V266 / Abit KR7A / etc...) recognize these and report core temperatures? Or do they still use the silly sensors under the chip?

I see the A&V266-E manual ftp://ftp.asus.com.tw/pub/ASUS/mb/socka/kt266a/a7v266-e/a7v266e-100.pdf (page 24) has a jumper "2-pin THEMCPU - This jumper selects the type of CPU and coordinates its thermal sensory capability."

Is this a yet to be implemented feature? Or are we there yet?

- JW

 

[Ed_Phoon]

Have you read Tom's <A HREF="http://www6.tomshardware.com/cpu/01q3/010917/index.html" target="_new">How modern processor cope with heat emergencies</A>

I think most (may be all) today's socketA mobos don't support that feature.

<P ID="edit"><FONT SIZE=-1><EM>Edited by Ed_Phoon on 11/14/01 12:23 PM.</EM></FONT></P>

 

[jclw]

Yes I did read that article, but it was written two months ago, prior (I believe) to the release of the XPs.

- JW

 

[Guest]

I myself want to build a new system and was thinking of using the Asus A7V with an AMD. Which chips does this mobo support.

You are responsible for any damage the info in your post may cause to my system.

 

[AmdMELTDOWN]

AMD has choosen the half-a$$ed way of implementing a thermal protection scheme, you'll have to wait 'til the mobo makers take up AMD's slack and complete the half-a$$ness.

it cost less to put four lil' pads on the tbirds and call it a day.

afaik, only AMD's in-house "cherry picked" boards offer this protection for the new XP +/- 300 chips, that's afaik.

"<b>AMD/VIA!</b>...you are <i>still</i> the weakest link, good bye!"

 

[FUGGER]

JCLW, its useless.

More marketing ploy than useable technology. AMD can print "it has thermal diode" even tho it doesnt work with any motherboards made today.

 

[AMD_Man]

One question...why would anyone care about thermal protection? A heatsink doesn't just fall off. And if it does, it'll destroy your motherboard and graphics card in the process before the CPU is een harmed.

AMD technology + Intel technology = Intel/AMD Pentathlon IV; the <b>ULTIMATE</b> PC processor

 

[Yahiko81]

I think most people don't care about thermal protection but companies do. The p4 has awesome thermal protection. I think throttling has more positive attributes than negative. If you want 100% uptime and your fan happens to die then if you don't have thermal protection you are screwed. I mean you may catch it and power down the server till it gets fixed but then you lose the 100% uptime. With the P4 you can just do a hot swap and it'll all be good. I like it a lot. I think that is one of AMD's downfalls. They should really get on the ball and get some thermal protection. Now if Intel would just get on the ball and quit putting out half assed processors.... but I hear northwood is coming.

Nice <b><font color=green>Lizards</b></font color=green> <b>crunch</b> Trolls cookies....... Yummy!!

 

[jclw]

AmdMeltdown: I believe AMD is doing exactly what intel did on the PIII processors - simply adding a diode and letting the motherboard guys work out the details. <A HREF="http://developer.intel.com/design/pentiumiii/applnots/245301.htm" target="_new">http://developer.intel.com/design/pentiumiii/applnots/245301.htm</A> (page 6) "A thermal diode is independently routed off the processor core to the SC242 connector or the PGA370 socket to assist in evaluating the junction temperature. This is the same diode that has been used by DMI client software to monitor processor temperature since the introduction of the Intel SC242 processor."

AMD_Man: While I don't worry about a heatsink falling off, there is a chance it could get bumped around or dislodged when your pet bumps into the case or your 6yr old sibling kicks it, and, as Yahiko81 mentioned, there is a possibility of fan failure. Considering it might cost you about $0.02 (max) to protect a $200 investment, I'd rather have it.

- JW

 

[Negaverse23]

(page 6) "A thermal diode is independently routed off the processor core to the SC242 connector or the PGA370 socket to assist in evaluating the junction temperature. This is the same diode that has been used by DMI client software to monitor processor temperature since the introduction of the Intel SC242 processor."

It's for temperature evaluation purposes only. It's not the hardware thermal controler. Some previous topics: <A HREF="http://forumz.tomshardware.com/modules.php?name=Forums&file=faq&notfound=1&code=1" target="_new">Link 1</A> <A HREF="http://forumz.tomshardware.com/modules.php?name=Forums&file=faq&notfound=1&code=1" target="_new">Link 2</A>

<font color=blue>Another waste of bandwidth on the web. :tongue: </font color=blue>