Question about my G4 processor cache...

not just the dude in brazil, others on here have reported severe overheating with the FW800's only. The design has flaws though. Most have overheating problems, while very few don't.

just be aware of it!

nadav

In case you want to know more about this topic, just ask those on the forum, Again, this is how I found out, from them. I just acquired this MDD machine less than 5 months ago and its the best thing I have gotten. I haven't planned on even going to Intel since I don't like windows, but the powerpc processor still has life in it!

My question to you: How many fans do you have in your system? According to my temperature monitor, my computers cpu temp is: 98 degrees fahrenheit.

129.2F is fine, but if it gets higher than 135 close to 140, I would get some fans QUICK!! Also, download chud tools 3.5.2 and install them. Then enable nap mode - this will cool your system down.

Chud tools 3.5.2 includes a program called nap. With this enabled the processors are not taxed as much, resulting in quieter, cooler operation. You can find out more info by putting in the seach discussions: chud 3.5.2 or NAP MODE. Generally, by default it is enabled for single processor systems, but on dual it is disabled.

131.36 indicates normal operation.. however, I would still monitor it. If it gets higher than 140, then I would shut down or until the computer starts to shut itself down. If the temperatures are too high, this will affect performance as the chips and hardware inside are heating up. TOO MUCH heat is bad for a computer.

hmm.. not with nap mode enabled? Lock ups and freezes are due to excessive heat!

Faux- BTO mean "Built to order".

Nadav wrote:
Ready for some more weird stuff? The processor is a dual processor 1.25 of course with the 2MB L3 Cache. I thought the 2003 models were only single? Plus, I think the earlier MDD models had a different type of heatsink, similar to the quicksilver 2002. Look at the MDD 867 dual and you will see the heatsink that came with the first round of the dual 1.25 processor based MDDs.

Nadav

The 2003 MDD came in a single and dual 1.25 processor configuration.

The 867 dual and the first 1.25 dual are the same release of the MDD. That's why they look similar.

That pic of the FW800 I posted wasn't mine... I found it just to show it to Faux. I don't know what the tubing is.

I don't know about all of this talk of the FW800 overheating. One person's case from Brazil doesn't make it a rule that they overheat. If he wasn't a specialist in Power Macintosh's, electrical engineering or computers at all, then it could have been a whole host of things other than what he thought. From what I've heard, they are great machines, and were the best and cheapest priced Powermacs ever in history when they were released in 2003.

Chances are if his Radeon 9800 "fried", he wasn't following ATI's specific instructions for using the 9800. Since it normally runs hot, the PCI slot that is next to the AGP slot must be left open to provide proper cooling. Otherwise, it will run too hot and damage the card. Also, if he wasn't running the PCI slot next to the AGP slot open, that means he probably had his PCI slots packed full, which made heat a big issue. If he knew anything about heat, he would have put a PCI slot exhaust fan in to get some of that heat out, especially because he is in Brazil. Having a case that is too hot also causes strain on the PSU, which will make it run less efficient, and can even cause it to fail. Excessive heat can cause kernel panicks in the CPU. The firewire 800 probably doesn't run excessively hot on it's own - it's after you start adding internal drives and cards and whatnot. Then you have to get some of that heat out. And if you don't things will fail - as your friend in Brazil saw.

If you wanna cool your machine and you have an empty PCI slot you don't mind filling, use this-

http://cgi.ebay.com/PCI-EXHAUST-SLOT-BLOWER-FAN-LONGER-AND-BETTERW0QQitemZ290005239775QQihZ019QQcategoryZ3673QQrdZ1QQssPageNameZWD1VQQcmdZViewIte m?trksid=p1638.m118

It's a good one. I use it and it really helps.

Your goal with cooling is to create a constant flow, like a tunnel. What you are really aiming to do is bring cold air in (intake), normally through the front, have it carried over the hot components of your machine until it heats up, and then have it dispensed (exhaust), normally out the back. Typically, exhaust is more important than intake. But having both really helps. This is why having the case closed makes things run much colder - the more air tight, the easier it is to draw and dispense air. If the case is open, the air will remain stagnant.

Operating the machine with the case open is okay if you are checking something, but it should only be done for a couple of minutes at the most...