PowerPC :: PowerMac G5 Has 4 CPU Fans But Only Two Can Work?
Sep 17, 2009
My CPU fans for proc.A are near-constantly capped at 300rpm(system minimum), no matter how damn fast the B-fans spin to compensate.I have: Kept it clean inside. Kept CPU settings on Highest, as usual, but tried Reduced/Auto Repaired permissions Reset the PRAM Reset the PMU Booted into single-user mode Reinstalled Leopard
Obtained & ran Service Diagnostic CD and passed all tests Re-calibrated the CPU's only to notice the speeds now hover around 400rpm now What more can I possibly try? I don't believe a re-seating of CPU's is in order. They work great. All my fans & temperature sensors passed their diagnostics tests, too.I am very irritated by the noise of 2/4 fans overcompensating and getting very loud, from 2000rm-4000rpm, and hey, my Mac is screwed up, and I really need to fix this.
My PowerMac G5 fans hardly ever speed up. I mean they certainly never go full speed or ever close how they sometimes behave on start up. I never get the jet speed noise. Even when I am rendering a movie in FCP, I hardly hear the fans. Right now on idle, iStat pro reports CPU A being 58C and CPU B being 56C. Yet, the fans are still only 400RPM both CPUS Intake/Outake.
I have a strange problem with the powermac G5 1.8 SP, yes the one with the hardware bug. It was my first mac, what a dissapointment. The bug was partly solved with the firmware upgrade, but after that it still behaved strangely. The fans suddenly go up to maximum speed every hour, then quikcly return to normal. There still have been lockup's / beachballing with USB, and overall slow performance.Now I am running the latest mac osx Tiger version, about a few weeks ago, the fans start revving up almost to maximum, all the time, regardless of cpu load. The cpu temperature reads about 60...65 degrees centigrade when idling (minimum cpu load), cpu setting is already on "reduced speed". After switching-on, cpu temperature is already 60 degrees centigrade. The cpu heatsink is stonecold, as is the exhaust airflow. The cpu 2 fans roar like mad and keep revving up and down. When I remove the plastic transparent cover, the photocell is activated and a red LED comes on, now the fans immediately return to normal speed. Anybody else had similar problems wit the powermac G5 SP 1.8Ghz ?
CPU cooling fans are running at strange different speeds. Powermac G5 early 2005, dual G5 (not dual core).This is at idle:CPU A 60 degree Intake 300rpm Exhaust 300rpmCPU B 63 degrees Intake 1125rpm Exhaust 1100rpm! I have not noticed this before. They usually remain identical.
I have posted a question on the Apple site, I would like to get some input from the people here as well.I wont bother typing out the whole thing, much simpler to let you go have a quick read at the questions and solutions I have tried.
I've cleaned all my components except the HDD bay fans on my G5 Powermac. I've searched google about 5 pages deep and no luck. I have the service manual but it doesn't show how to remove those fans either. Anyone know of a link that shows how to remove them? I'm very good at taking stuff apart but I just can't seem to take this fan assembly apart. Maybe it's my kryptonite?
I have a last model G5 with dual 2.5ghz and 4.5 gigs of ram. It also has the 7800gt video card.After I start it up it runs for about 15 minutes and then the display goes blank and the system fans go full out. I've tried resetting the PRAM, PMU, VRAM, all of those things...the last thing I have is the video card to test.Also the power supply was just replaced by a Apple Repair Center under extended warranty.
I have an old PowerMac G3, (Yosemite) and I thought about adding a 56k fax modem to it just for kicks. Question is: will a PCI fax modem work in the powermac g3? It's running Mac OS X and the modem is rather new.
I installed a USB wireless adapter driver into my G4 with OS9.2.2 and since then the mouse, keyboard & drawing pad don't work. Has anyone had this problem and had success in fixing it without spending a fortune?
There is a Powermac G5 available in my area for $450. Its a dual core 2.3 and a nvidia GeForce 6600 and he is including a 20 inch ACD. I don't know if its a great deal, but I think it would be great, because I could build something wild in that case later.
I recently bought a PowerMac G4 1.42GHz Dual Processor. It has 2 gigs of RAM on it. It was a fair deal I think. The "thing" is still looking like new and shiny. Even the insides are still tidy and intact. My question is, would I still be able to pump more juice from this beast. It still run fast comparable to some decent windoze box. Up to how much processor can i be able to squeeze out the CPU and if possible, how to?
I have a G4 Power Mac. It's the "digital audio" model that has been upgraded with a 1.2Ghz G4 processor. It works well except for one thing. It shuts down randomly and suddenly. Then after 5 or 10 minutes it turns itself back on, reboots and runs fine. (It is set to re-boot after a power failure.)I suspect what is happing is the power supply is turnning itself off due to some kind of a thermal, self protection switch. The fan seems to work but the PS gets warm.What's the cure? Replace the power supply? If so where to get a new(er) one?
I have a G4 PowerMac that will not boot up. I power up the computer and it stalls on a grey screen with text prompting me to type <<boot>> if you wish to continue...or something like that. Does anyone have any advice on how I might troubleshoot this? The computer was working fine for a few days before this occured. It has been unused and sitting is storage for a while.
I have a PowerMac G5 dual 1.8ghz running leopard. It worked flawlessly since the day I bought it.
Then as of last week whenever I booted the computer I would get the gray screen with a black box saying to reboot the computer (in 5 different languages). I would reboot the computer. Same screen.
Is there some way to check what is wrong? Is this typically a hardware issue or an operating system?
I was installing Tiger using FireWire from my Powermac G4 and it was nearly done when my Powerbook (target) died due to lack of battery... When the Powermac was rebooted, I get only a question mark and flashing smile.
I tried to test the C and T keys holding them down during boot up but only get the smiley face every single time... I even disconnected the secondary drive to no avail.
Please could you help me with this problem that i've got with my Powermac G5.
Spec is Dual G5 2gb ram
I'm trying to boot from the Mac OS cd (tried 10.4 that it came with and 10.5) and both get to the grey screen with the Apple Logo and that's as far as it gets. No spinning loading wheel.
Tried the following..
PRAM reset Swapping Ram out
Is there anything else i can do. It's a really good machine so i hope it's not needing a Logic Board repair!
Currently it is almost entirely unresponsive. I came to wake it from sleep a few days ago and it refused to wake. It is totally unresponsive to the power button on the Apple Cinema display and when the power button on the front of the tower is used the button lights up blue and then goes out. There is no fan activity or other sign of life. There is no burned oder or evidence of anything charred.It is a dual 1.42 MDD FW800 machine with AGP graphics. Model: M8570So far I have:
-Removed and reseated the graphics card, RAM and other PCI cards. -Removed battery and let it sit unplugged over night. -Performed PMU reset. (once)
At this point I have come to believe the power supply needs to be replaced. it is model: 614-0224 (360w). After looking online they are stupidly expensive, from $180 to over $500 each. I will be ordering a new MB (PRAM?) battery (Saft 3.6v LS14250C) and replacing that as well.
Questions: - Have I missed anything here? Is there any other explanation or method of troubleshooting I should try? - Is there any cheaper source for the power supplies? Why are they so absurdly expensive? Does anyone here want to give me a sweetheart deal on one? - Can anyone recommend a source for the LS14250C battery locally in Manhattan? Radioshack has it as an online only item and wants $15 for it.
What type of ram does the powermac g4 use? im looking into buying some and the about this mac just says sdram,but newegg has two different types of sdram. so what type does it use
I have always been in love with the power mac G5's.so, I am going to sell my G4 mac mini to buy one. I was wondering if I would be better off buying a single 1.8 and buying 2 gigs of ram. or, buying a dual 1.8 and only having the 1gb of ram?
I have a PowerMac G4 (MDD 2003, I believe) that I use as my home media server for my Apple TV. Currently I have a 14+14GB boot RAID and 75+75GB storage RAID, using old PATA drives, of course. This is working great and is pretty well performing so far, but I'm going to run out of space eventually since I'm a packrat. I'm thinking that this Christmas will be a good time to renovate this machine, so here's the question MacRumors: What's the best SATA controller for my machine? PS: It's a dual 1.25GHz PowerMac 3,6. In MacTracker, this matches 3 different machines. Is there a way to find out which one this truly is?
I've got a PowerMac G5 dual-core 2GHz box. Can I add another dual core CPU to get a quad-CPU system?
Forgive me for not wanting to open the case and look for myself, but it lives in a little hole that is hard to get out of b/c of all the cables and stuff... just wondering if anyone knows off the top of their head if the motherboard has another slot...
Really wanted to update my Powermac this year to a MacPro but as I'm getting married it's going to be an expensive year so I've decided to upgrade the G5 2.0 DP I already have.At the moment the kit I have is pretty good in that I have 1.5 gig of memory and 250gig of hard drive space but I'm open to suggestions.The G5 I have is the PCI version so I'm a bit limited as to what I can upgrade but the main area I'm looking at is with the graphics card. I had BTO the ATI 9650 256meg card but I'm looking for something better. I've just started to get into "World Of Warcraft" and would like the best graphics card that is value for money.
I recently got enough money to by a referbished Powermac for my starting out edditing buisness. Right now we use a mac mini G4 with 512megs of ram(its bad) and a macbook ro with 2gb of ram and a 2.16GHz proccesore.(It runs really fast) Anyway i want a stationary desktop to do my edditing on and i dont want to buy a mac pro because of price and i really dont like the type of ram it uses. So here are my thoughts for an editting ccomputer and i would like your help in making my desition.(Oh and if it matters i will be edditing HD Films on it)
Power mac Dual Proccesor G5 at 2.5Ghz 2.5gb of ram 250Gb HD ATI 9650 vid card Price is about $1900
Powermac Dual core G5 2.3GHz 2Gb of Ram 250Gb HD Nvidia 6600le Price is about $2000
eather one is fine for me i just want somthing that will outperform my macbook pro and allow me to retire my mac mini. Oh and des ram really make a huge differance in final cut pro from 2gb to 4gb.
Why were some Powermac G4's names have Quicksilver in them? Is it a special line or what? Whats the diffrence between the G4 "Quicksilver" and the regular g4?
FYI I have a powermac G4 dual proccessor with mirror drive doors. im running mac os x 10.4. I am wondering if anyone has installed linux on a similar machine, I would like to know more before I try it. what version is best (ubuntu I heard is good?)? Must you reformat a drive or can you install in on a new internal drive? any information really.
I'm kicking around the idea of switching my Rev. A PowerMac G5 Dual 2.0 for a Mac Mini Core 2 Duo 2 Ghz with 2 Gigs of RAM. I'm wondering if I would take a big performance hit with the switch to this machine when compared to my current workstation (most likely not, but hey I ask anyways). I am looking for something with a small footprint that's quite and basically is not a furnace with computing features inside that sucks power like a maniac. It's worth mention that I am on a budget as well(Macs here in Argentina are expensive as hell). As it is right now, if I do a feature to feature comparison, I would be getting DL DVD burning, Airport, and Bluetooth, something that my PowerMac G5 is lacking.
Its worth noting that the PowerMac has 1 Gig of RAM, the stock Radeon 9600 with 64 MB of RAM, but does have a 250 Gig HD. I regurlarly use Photoshop CS3 (working mostly with A3 sized files @ 300/600 DPI), Illustrator, in Design, Dreamweaver, some Flash. Of course the run of the mill, Web browsing/email checking along with IMing and iTunes activities. So what you guys think? You think a trade of my ol' faithful PowerMac from 2003/2004 to a top of the line mac mini would be a good idea?
