Mac :: IMac 27 - I5 Vs I7 Heat Noise & Power - 1200VA UPS
Jun 4, 2010
I am almost 100% that an iMac 27 is my target, (not quite discounted the MP but lack of remote without extra is actually a big factor).I would prefer the internal HDD bays and such forth, but I've had a MP before and as I have some ext FW its not a deal buster. The imac looks stunning, has simplicity and a nice big screen.My only real questions are (with it being on top of the desk); what's the noise and heat like for the i5 and i7 models? I'd like to get thoughts on both.For my uses an i5 has enough oomph, but the i7 would be nice (just speed up those transcodes etc).Is there a huge difference in the power draw on these machines (I have a 1200VA UPS).
Maybe someone can help me understand this a bit better. I have a MBP with a 2.16GHz CPU. I think it's about 2.5 years old. It has the ATI x1600 GPU. My dad previously had an iMac G5 2GHz but now has one of the new iMacs at 3.06GHz.When running iStat, I can notice an obvious difference in the CPU temperature. I don't think my MBP runs less than 120 degrees idle, while the iMacs were easily under 100. I haven't seen the new iMac while doing CPU-intensive tasks, but the old iMac never got above 140 if I'm not mistaken.As I'm encoding video on the MBP for a DVD using iDVD, it's getting up to 187 degrees. The CPU is using about 125 percent of my processing power -- 200 percent max if you didn't know. The temperature is the same even when HandBrake gets up to about 190 percent of processing.
For all of you who got your MBA2 13's how is the fan noise and heat under the usual suspects like Flash, Quicktime, and javascript heavy pages? Like the MBA1, does the heat go from 49C to 81C? Also, does the fan run really loud, all the time, and what is the RPMs? Please let us MBA1 owners know when you get a chance.
ive read many threads on this but havent received any conclusion to the battery life. and mixed opinions on the noise....anyone have both stock 5400rpm along with this one and done a comparison? is the speed worth it? is it still faster than the average 7200rpm once the 4gb SDD flash has been used up? my biggest concern is noise and battery life.
I have an old G4 mirror-door that I use as my PVR. It's stuffed with 4 big drives to record media, but it runs all day and sucks tons of power. Plus, it heats up the cabinet like an oven. Is there a piece of software etc. that can help the mac better manage its power consumption? I don't like using the OS X drive sleep option because the drives always go to sleep just when you need them..
Just on a curious thought, anybody's MBPs experiencing heat issues that cause the fans to kick in so much that they power off instantly? And another question, if you do feel heat, where is it the most intense?
I'm new to this forum and I just bought a new iMac 20" 2.66GHz, I turned on my computer and noticed a weird sound (buzzing or humming noise) not loud but loud enough to here I notice when I messed with the Brightness it went away is there something wrong with that or is that a known issue?
I'm planning to buy a new iMac in the next week but I'm looking for the one that will produce the less heat so that will make less fan noise. I'm only using it to watch YouTube and play World of Warcraft. Anyone know which one will produce less heat, i3 or the i5 or even the i7. Budget is not a problem. I prefer to pay a little more if I know I will have less fan noise so less heating. Anyone maybe have different model at home or at the office and noticed a difference between all the models ? Maybe it's more a size question between the 21.5 and the 27 inch iMac and less a cpu question ?
I have been researching this and I have came up with no answer. There are note book heat spreaders available [URL]/Product/Produc...82E16835207003 and I was wondering if it will fit in an iMac. Yes I have looked to see how cramped up it is in the memory slot, but I found on the sunbeamtech website that the thickness of the total heat spreader is only .2" at the opposite side where the memory plugs in at. Also I found out the the thickness of the copper on the heat spreader is only .4mm thick which is very very minimal. I have just purchased one of these to test out with the 8GB ram I just purchased for $120 from newegg with a $20 mail in rebate
im guessing this is a heat issue. My screen was flickering and cutting out. This is the first time it has happened. I was only surfing the internet and using itunes. I will post videos of what happened soon.
The 27� models I have seen on display seem to generate an awful amount of heat radiating from the screen. Is this common?
Is the screen overly big for home office use in terms of heat, screen resolution/print readability or overall usability if one sits fairly close to the monitor?
Those waiting for the quad core to roll out next month, any concern about the temperature buildup? I recently had some good fortune roll my way and will be getting the quad core iMac. After seeing some pictures of the inside, I am a little concerned about the heat buildup from the CPU, GPU, and the display. I know Apple does its homework, but is there too much in such a confined space without greheat circulation? Is this even worth worrying about?
My G5 has been making more noise at start up. It sounds like one of the fans is making a grinding "rrrrrrhhhh" noise. My living space if very cold and quite dusty (warehouse). I notice it more on colder mornings ( inside temp 45° - 65°F ). Should I refrain from using my machine on cold mornings/nights until the heat is running?
Information: Dual 1.8 G5 (2003) Mac OS X (10.4.11)
I have a problem with my G5 freezing and it is preceded with by loud fan noise. I was wondering if the hard drive could be the problem? It had the problem with 10.4 as well as 10.5. It happens at startup most of the time and eventually lets me get up and running and stops being a problem.
The power socket at the back of the mac pro makes a kind of buzzing noise. Only for a short amount of time though. I have have never heard this before as it isnt that loud at all, and only cam across it by chance. I kind of figured out that it might be the electrical current.
Every time I start up or wake up my mac pro from sleep I get a large noise that seems to be coming from around the power supply. The best way to describe it is that it soudns like a buzzing sound or like one of those large elctrical transformers outside except not as loud. It goes away within 5-10 minutes.
Info: Mac Pro, Mac OS X (10.7.3), MacPro 2,1 - 2 x 3ghz Intel Xeon
I am trying to hook up the digital audio output on my cable box to the digital in on my dual 2.0 G5 running 10.4.9, 1 gig RAM. I have HDMI and component video out to monitor, but I use JBL creature speakers and sub for audio.
I have the propper cables and routing, sounds prefs set to digital in, and line out, to go to JBL creatures and first I get no sound at all. If I start AudioHijack and use same input and output settings all I can get is a hissing/clicking sort of sound. Same with using Soundsource and LineIn.
Audio MIDI Setup only shows or giveds me Built-in Audio for selections under system settings and properties for. Ausio Input and output show Master stream grayed out and I selected digital in and Line out for my sources and no change. Both ar set to 441000.0 Hz 2ch-24bit as well.
I am trying to hook up the digital audio output on my cable box to the digital in on my dual 2.0 G5 running 10.4.9, 1 gig RAM. I have HDMI and component video out to monitor, but I use JBL creature speakers and sub for audio.
I have the propper cables and routing, sounds prefs set to digital in, and line out, to go to JBL creatures and first I get no sound at all. If I start AudioHijack and use same input and output settings all I can get is a hissing/clicking sort of sound. Same with using Soundsource and LineIn.
Audio MIDI Setup only shows or giveds me Built-in Audio for selections under system settings and properties for. Ausio Input and output show Master stream grayed out and I selected digital in and Line out for my sources and no change. Both ar set to 441000.0 Hz 2ch-24bit as well.
My trusty PPC g5 from 2004 has died, or at least it won't start. It shows the grey apple screen, but no spinner, and after a few minutes the fans kick in and build to a wind-tunnel noise.Â
I don't have a backup of this machine, or it's other drive, so I am nervous about taking it into Apple where they might just wipe it.Â
Also, I surprisingly CAN start it up in Firewire disk mode, and both drives seem to be OK when accessed from another computer.Â
So I've copied off the most important things, and I will probably try to make clones. But before I finally cart it into Apple (where it will probably cost more than its worth to fix it),
This is in reference to a Mac Pro 3,1 8-core purchased around Feb 2008.
Lately, I've noticed a strange noise coming from my power supply that sounds like the noise a refrigerator radiator makes. It's a humming noise that rapidly comes and goes, constantly.
The power supply fan speed was running at 599rpm yesterday, but is running at 629rpm today.
I'm not sure if the problem could've been caused by adding additional ram (12GB, OWC) or an additional HDD (3rd HDD, WD), but I didn't really notice the noise until after adding these components.
What could be the cause of this problem? What are my repair options if necessary (without Apple Care)?
I was out of town so this description was second hand but the computer has been running a little weird for a while. When I have too many apps open or on a website that has a lot going on...the computer starts revving up until I quit out of everything and let it slow down. I guess while I was gone, this happened but nobody quit out the apps and it eventually turned the screen black. When I tried restarting it sounds like the computer is working but the screen is black so I can't see if it is booting up or not. I took the monitor into the apple store yesterday and it started up right away for them. It's a cinema 23" I think.
I got my MBA for 2 days now. Everything works fine except I heard these randomly Click noise coming out from under the power button place every once a while . It only does it once everytime when it happens and the click sound goes less than a second. Is this suppose to be normal?
Just opened my new macbook pro 15" and when i turned it on (and every time i turn it on), it makes a strange noise. seems to come from the front but it stops after a second or two. almost sounds like it's a disk drive spinning up. Is this normal? It doesn't sound like it's anything bad, it actually sounds like a standard pc based laptop sounds when booting up. I just thought the macbooks were supposed to have almost whisper quiet components. I still love it, and I'm glad I bought it.
First of all, Noob imac owner here. I was just handed down an old imac g3 400mhz desktop that doesn't power at all.When hitting the power button on the unit or keyboard, the units screen makes a noise. No hard drive or green light comes on at all. At dead silence in the room, i can hear the screen flicker, like a tv would come on. I went to go about and read a few problems before, replaced the battery and even tried a new power cord. Any Ideas?
I have a new 27" I7 that appears to have the high pitch sound issue if the brightness is not at max or lowest. How "common" is this issue?
I do not need the perfect iMac (I have some gray banding and the 1TB HD grumbling and it is not a big issue to me) I just wanted to see if this high pitch noise is considered a defect and needs to be fixed/replaced or it is more common than not with the iMac.
rite as some will already know i have took back my 27" iMac a total of 6 times and now i am on my 7th (4th one had screen issues), after actually accepting the "belly rumbling" "popping" noise and just getting on with the i5 experience, i thought i would actually contact Seagate direct on the actual matter for the rest of people on here who have doubt about there seagate hard drives.So i ring the operator i told him the whole story his first reply was sorry we dont support apple hardware! my response was "respected but the hard drive used is a seagate product"! he then replied saying sorry sir i misunderstood and quickly responded how can i help. I then repeated the problem and he asked for the HDD serial number, i was then very specific on the the noises we are all hearing and he made me repeat what i said a good 3 times so he had a very good understanding (in other words he did take this all seriously) he then said he was going to talk to the relevant person and put me on hold....10 minutes later he's back on the phone and he again asked me a final time! (ffs) to explain the noise he then quickly said in response the hard drive is supposed to make that noise. he named it the barracuda in seagates terms.
