How's my temperature? Tbird 750@1100

[fake]

My Tbird 750@1100 runs at 38-39C idle (in bios) with a brand new hedgehog HSF w/ Sunon fan & arctic silver. Whaddya think?

 

[toph99]

sounds great to me!

 

[Mikewarrior2]

That's not actual core temp, so comparing with other people won't even be remotely accurate.


Mike

 

[fake]

Mike, in the sense that it's measured from the bottom on the kt7? Well, I understand that .. but I'm wondering if its decent, because I just shelled out $40 for the Hedgehog

 

[AntMan]

where'd you get the hedgehog at, and how does it compare to other coolers?




Thanks
Ant_Man

 

[Mikewarrior2]

It is decent, but it depends on what revision bios you're running, ambient temp, etc. For example, at some point in the kt7 bios revision, Abit decided to try to compensate for the inaccuracy of the thermistor.

To do this, they autocompensated the cpu temp up(around 10C, I believe). That is one reason you see people say that a certain bios "made their cpu run hotter", when it actually just compensated for the thermistor. Even though it still isnt' a correct reading, it does help. It pushes the reading closer to what the actual core temp would be.

If you're running a later bios, your temps are absolutely fantastic. If you're running an earlier bios, and want to play around with a new one, try upgrading to a later bios. I'm not sure which revision started the temp compensation, but I do know that one of them does.


Mike
P.S. This isnt' to knock your heatsink/cpu/setup or anything. It is just a heads up to other's who are getting much higher temps with the same setup.

 

[Dark4ng3l]

I doubt a 750 would reach a core temperature that low with air cooling at default speed

 

[fake]

AntMan, I got it at Plycon.com but they seem to be out of stock right now. I had the Vantec HSF before and decided it was crap, however I kept the Sunon fan from it and stuck it on the Hedgehog. So far, it's about 15C lower than when I had my Vantec on. They sell them with Delta fans too, which supposedly kick major ass.

Thanks for the info Mike! I haven't upgraded it yet .. so perhaps you're correct. Dark4ng3l, I'm not sure what you're saying. The chip is of the blue cores and is at 1.85v.

 

[Fish54]

Even if your temps are off by 10C as Mike feels that they may be, 48-49C is not something to be too concerned about, especially with an 1100mhz Tbird!
-Fish

 

[TuffGuy]

congrats!!! mine runs at 41c with a gorb under full load. (with 4 case fans)

 

[moolman]

Hi,
I have a Abit KT7-RAID with the thermistor touching the bottom of the CPU die. My 750 is also overclocked to 1100, my idle temp is 32C with a load of 51C, I'm using an alpha PAL6035 with artic silver, sanyo denki quiet fan. To test the load, I used stability test 5.2 not RC5 or other programs because they can't get the cpu temp high enough cause they don't use all the cycles. Doing seti or RC5 my load temp is 48C. My temp for web browsing, non-intensive apps is 37C.

Alex

 

[Mikewarrior2]

at 1100mhz, a duron at 1.85 volts would put out roughly 64 watts of heat. Since Fake's heatsink, and Moolman's heatsink are both in the .4c/w range, you'd have a cpu full load temp of 24C over ambient temp.

Moolman's temp is fairly correct, thermistor errors aside. I suspect Fake's scores aren't too far off either, as this is bios temp, not full load window's temp.


Mike

 

[fake]

Hmm .. even more weirdness! I'd appreciate your input mike Okay, installed Win2k just now and MBM is giving me this:

~27C idle/light browsing
37-42C full load (RC5 cracking .. didnt get to install prime95 yet)

Odd huh? I even checked the MBM website to make sure I was looking at the right sensor and sure enough, it's all correct.

 

[Mikewarrior2]

yeah, i think it is just because you're running the earlier bios'. It also appears that your bios temp was closer to full-load temp than it was to idle temp.

IN the end, if it is stable for you, i wouldn't bother updating the bios(unless it adds features ). Just realize that the temp readings you are getting aren't correct.

You could try the new bios, it should have the correction built into the bios(keep in mind your cpu wont' actually be running any hotter, just that the temp reported will be hotter), but as long as it is stable, it really isn't a big deal.

You could always just put in some compensation into MBM. Somewhere between 10-12C would probably bring you up to the temps that the new bios' would give you.

The main reason why I post about this all the time is because there are always comparisons between different socket A users on cpu temp. Comparing temps between different systems/bios'/case's is tricky even with p3 internal diode readings, but is even worse when it comes to socket A cpus.


Mike