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.
View 4 RepliesI just upgraded from a Powermac G3 (1st rev.) to a Powermac G4 DP 1.25 ghz... so much faster! Any other fans here? Any cool stories to tell about it?
View 17 Replies View RelatedMy 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.
View 4 Replies View RelatedI 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 ?
View 12 Replies View RelatedMy 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.
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.
View 2 Replies View RelatedI'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?
View 1 Replies View RelatedI 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.
View 1 Replies View RelatedFall 2005 PowerMac G5 dual 2.0Ghz with Leopard 10.5.4
View 2 Replies View RelatedMy PowerMac's (G5 Dual 1.8GHz procs) fans seem to run at a solid 4k rpm's regardless of what I'm doing, even with CPU usage set to low. I've taken the whole machine apart, cleaning it with canned air and such, but the problem just won't leave me be. The air coming out of the machine is ice cold, and the temperature readings I'm getting are about 86 degrees F for the CPU's and 70 for the HDD, so I'm not sure what gives.. Slot and Backside fans are running at 255 rpm, but the others are all 4k.
View 8 Replies View RelatedThe fans on my G5 Pro are running at close to 3000rpm most of the time. I have read other forums and do not think this is normal at all. I started looking into the fans because I am getting frequent kernel panics (black screen crashes) and thought it might be the machine over heating. My CPUs are at about 50C to 52C and the fans are constantly running that fast.
View 5 Replies View RelatedWhat is wrong with this picture? The fans are running out of control constantly. This machine is sooo loud. The power supply was just replaced, which did little/nothing. Reset all ram/etc.
View 3 Replies View RelatedThe fans on my 3.06 GHz Intel Core i3 imac run almost constantly and at high speeds. I have reset the SMC, fixed permission, and tested the disk. Also, I downloaded SMC Fan Control. Here are my current readings will the fans are blasting:
ODD: 994
HDD: 5577
CPU: 1200
Temp: 44C
Info:
iMac, Mac OS X (10.7.3)
My iMac seems to be a lot more noisier (a low humming noise, maybe the fans), than it was when I purchased it in a couple of months ago. When I first got it, it was the quietness and boot time which I was impressed with more than anything. Now it's noisier and boot times have doubled. I have noticed that the fans for for HD and CPU constantly spin at 1200rpm or more, with no applications open and as soon as I switch on my iMac.
View 3 Replies View RelatedSince I updated to 10.6.6 earlier today I've noticed that the fan in my MBA (13" late-2010 model) is running constantly. This is rare -- I hardly ever hear it. I opened activity monitor and 'System' is using 45% CPU time, and it's pretty constant.
I have absolutely no clue why -- there's nothing in console to suggest it's doing some task, and I can't see any other hints. Apart from the noise and the heat (though don't get me wrong -- compared to my old MBP it's not really noisy or hot, but I liked it better when it was totally quiet and cold), it's also killing the battery -- 25% has gone in less than an hour.
do any of you have CS4 running on a G4 Powermac? I want to buy CS4 but I have no intentions of buying a G5. Someone told me that he use Photoshop CS4 on his G4 with no problem. I do not want to buy the entire Suite and then end up getting stuck being unable to use it. On the box says G5 Intel is recommende
View 1 Replies View RelatedI am running a PowerMac Dual 2.0 G5 with the latest updated version of Tiger. I have maxed out the RAM to 8GB and upgraded the original video card to support my 30" display. I use a helper applications called "Free RAM". This program basically calculates what RAM you have available.
I am a graphic designer and need to run Quark Xpress 7, InDesign, Photoshop & Illustrator (CS4 with latest updates) simultaneously. On top of these 4 I also run Mail, Safari, Acrobat Professional, Extensis Suitcase X and iBiz (time management). These programs are all running all the time.
After launch and all apps running, everything is great. I have 2.95 GB of RAM still free (Free RAM). As the day goes by, and I have opened and closed numerous files this amount of free RAM dwindles and eventually I am left with 96 mb of RAM just before the CPU says "Enough is enough!" and everything grinds to a halt. Now previously I was running CS2 and I never ran into this issue. The problem started when I upgraded to CS3. Now with CS4 I am seeing the issue almost daily.
Now comes the question... Is the issue simply outdated hardware? Or, do I have a software issue.I am afraid to purchase a new CPU in the attempts to remedy this problem. If, in fact it is only a software issue. I find it strange that after a restart I have almost 3GB of RAM available. And yet as the day goes by I run out of RAM. I understand that as I open files more RAM will be used to support the open file.However, after the file is closed the RAM should free-up and be available again.
My OWC RAM is working just fine, but I am growing increasingly concerned about the temperatures at which it runs. I have the 3.0 (120W) MacBook 2008 with 18 Gb RAM (4x4Gb + 2x1Gb apple stock). The RAM in memory module A2 & B2 is getting up to 80 Celsius without even much of a workout on the RAM. What's more, the MacPro fans are not increasing - right now the hottest module is at 76 Celsius and fans haven't increased at all (see screenshot below).
I have installed SMC fan control, which I understand is supposed to set the minimum fan speed, which I have set at 730 because my RAM was running hot even without any workout. How concerned should I be about this? Is this a) a defect in my mac pro b) a design flaw c) a problem with OWC memory, or d) is everything OK and I'm making a mountain out of a molehill?
Well my MacPro 2009 has this weird error where the fans will kick in and a restart wont restore them to normal a sleep cycle will though. It seems to only happen with OpenCL intensive apps but not Cuda intensive apps?? this may be random coincidence.
Info:Mac OS X (10.6.8)
The 64 bit 33MHZ PCI slots on a G4 are running at 133MBps correct? Also I want to know if all 4 of them are running fully inpendent from each other? So if I have a RAID card in there I can get the full 133MBps and will not be robbed of speed if I have a neighboring Firewire 800 or SATA RAID next to it.
View 2 Replies View RelatedBoth of my fans are running at the max 6200 RPM and have been for well over an hour. My CPU is over 65% idle, and none of my processes are over 20%. My HD Temp is 38 degrees and my CPU temp is 72 degrees. I don't think my fans should be running this high considering the computer is doing so little work.
View 24 Replies View RelatedI own a Macbook pro 17" core duo 3.06Ghz. I am very happy with the machine, but since a few months the fan's are louder and on much more often then ever before. (the first half year it was always silent) I remember there was some reset for this.
View 2 Replies View RelatedLike 3 days ago I shut down my macbook pro normally. I closed the lid and I noticed that the sleep indicator light was on. I opened the lid and the light went off. I closed the lid again and the light went on again. I got closer to the computer and the fans and drives inside were still running. The only thing I did was to hold the power button down until it shut. This has happened to me 3 times already. I'm kind of worried because I got the computer 2 weeks ago and I'm really happy with it. My computer is a 2010 13' Macbook Pro running Snow Leopard, not sure what version it is.
View 5 Replies View RelatedI've just bought a second hand macbook pro, the battery is dead which is easy to replace i guess but worse the fans are running constantly at around 6000rpm.I've tried resetting the smc and pram but that hasn't helped.I tried to run the hardware diagnosis but that freezes when it gets up to testing the logic board and i have to pull the power adapter to turn machine off.I only have the second of the two install dvds and machine is running os x 10.5.8
View 11 Replies View Relatedwhy is my mackbook air fan running all the time?
View 1 Replies View RelatedMy computer crashed today and hasn't been able to boot back up since. It gets to the grey screen with the Apple logo and stops. The fan then ramps itself up to overdrive.
I've started it up in target disk mode and repaired it using Diskwarrior on my macbook. It had to repair quite a bit and then it showed up on the desktop of the laptop. I can read, write and pull from it. I then ejected the powermac and started it up again to find the same problem persisting.
Brand new 2009 octo, with the 2.2x ghz CPUs. Turn it on, start NO apps. Let it sit idle. Within a few minutes the fans ramp up to FULL jet engine speed. I can't hear people on the telephone. And never stop. Let me reiterate that I am running NO apps. My load averages are in the zeros.
View 21 Replies View RelatedLast summer my MBP 2.3 GHz C2D was heating up so much, you barely could touch it. So I decided to give it a little hardware checkup. Finding the fans completely stuffed with dust
But after a while i recognized that the fans went on high rpms (around 6000) already at startup and did not lessen anymore. I do not have any high capacity processes running and the temperatures are not just not warm buth rather chilly, so no need for high fan speed. Now I want to solve this problem as well but seemingly nothing will work.
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Info:MacBookPro, Mac OS X (10.7.3)
My iMac (intel core duo) after a hard drive replacement seems to be running the fans at a high rate of speed. Usually just a few minuets after startup. Before the upgrade they were almost silent and now they are very noticeable. I need to get taken care of or just a result of installing a larget hard drive?Â
Info:
IMac Intel Core Duo, Mac OS X (10.4.10), Ipod 30 Gig, BMW IPod Integration, .mac
My fans have always been running at 2000 RPMs. I downloaded an app from the mac app store which caused the CPU to overheat, and in order to control this I read that it was wise to download smcFanControl. I downloaded this and added 2 settings, 2.4K RPMs and 2.8K RPMs. This worked to cool down my laptop, and once I realized that my CPU is at 36 degrees Celsius, I set the fans back to the default settings at 2000 RPMs. Now, my fans are constantly running at this speed according to smcFanControl and iStat. My core is cool, not even warm, yet all I can hear are the fans spinning fast to push hot air out of it, when there is none (I've put my ear to it to hear and feel the heat, there is no heat coming out).
I've had this laptop for less than 24 hours, it's a:
15' Macbook Pro late 2011
Intel Core i7 Quad Core 2.4gHz
7200RPM 750GB HDD
Also, this was not occurring prior to downloading smcFanControl (I've turned it off, deleted it, nothing works) - Even after turning off the laptop, the fans stopped, automatically after turning the laptop on the fans came back on. Some extra information: When I put my ear to the bottom of the laptop, it sounds like a vibration.
