View Full Version : dp 2.5 issues.. heat and hissing sound

Sep 13, 2004, 05:28 PM
This is my first G5, so, there are a couple things that I'm wondering about.

The computer runs pretty warm. I haven't checked out how hot using a hardware monitor, but it feels like, it's producing a lot of heat on the outside. Almost to the point where it seems like it's making my room really warm.

Maybe I'm being paranoid... or it's been a while since I've lived in Pasadena during the summer.

Secondly, there is this little hissing noise thats coming from the computer. I've read around and have seen people mentioning a chirping sound, which doesn't really describe what mine is doing. Sometimes the hissing is sustained in little 1 or 2 second incrimints (sp?)... so that has me wondering.

I've worked on a 2.0 at work for a little bit and have never noticed any of these things... my room mate also has one (a 2.0).. he's never mentioned a thing.. and I've never noticed it when I've used his machine.

So yeah, any advice you guys can give will be appreciated.

Sep 13, 2004, 05:32 PM
Here are some temps I got using Hardware monitor:

Main Logic Board Backside 111.0F
CPU A Die Temperature 171.2F
Processor Card A Ambient 122.0F
CPU B Die Temperature 163.7F
Processor Card B Ambient 117.5F
Drive Bay 89.6F
SMART Disk ST3160023AS (3JS3JXMS)104.0F
Memory Controller Heatsink 162.1F

edit, okay, those seem to be normal.

Sep 13, 2004, 05:43 PM
Call Apple and ask about the hissing noise. Theres a chance that its just the liquid cooling, or maybe Power Napping (perfectly normal).

Sep 13, 2004, 05:48 PM
Yeah, I've done a little searching, (probably what I should have done before I posted) and that seems to be the consensus.

Sun Baked
Sep 13, 2004, 06:18 PM
They started talking about the temps on the DP 2.5 on ars...

Starting page 116 G5 architecture page (http://episteme.arstechnica.com/eve/ubb.x?q=Y&a=tpc&s=50009562&f=8300945231&m=9080959175&p=116)

ARS -- What if our DP 2.5s really are running too hot? (http://episteme.arstechnica.com/eve/ubb.x?a=tpc&s=50009562&f=8300945231&m=651002306631)

Then there was a "Hardware Monitor" causing PM G5 freezes thread -- so if you keep getting a bunch of freezes, you may want to check the warnings on his site.