Fan won't power on

HI, I have a mid-2010 mbp. I was recently working inside it and accidentally disconnected the fan power source. I put it back together like it appears it should be, but the fan still won't power on and CPU temps are nearing the T-JUNCTURE temp of 105 C. Any suggestion?
Chris

You may try a SMC reset.
http://support.apple.com/en-us/HT201295
If there is no success, an appointment at an Apple store genius bar is your best option.
Ciao.

Similar Messages

Fans won't power off

Hello all,
Mac won't turn its fans off. Boots up fine . Shuts off fine. The fans keep running - the power supply, the main fan, the CPU fan, all. And the little red light stays on. Pushing the start button shuts it down, but not the fans. It's not sleeping; it's off. The only way to shut the fans off for proper is to pull the plug. For the moment I'm at a loss as to how to troubleshoot it.
Did I mention I tripped over the wiring octopus, and the poor thing wound up on the floor? Everything seems fine, but its fans just won't quit.
This is a DA with an 867MHz QS CPU, if it matters, ATA HD and no peripherals.
Awkwardly ..... Jon

Thanks Matthias and Grant,
Hit the CUDA button while running (the Mac, not I), but no joy. the red light dims slightly, but the fans continue to run, and the red light resumes full brilliance when the CUDA button is released. Resetting when the Mac is unplugged and all the wires disconnected doesn't help either.
I am getting good at resetting the date and time.
Any guess as to what I should try replacing first?
Thanks again ..... Jon
P.S. I am easily fooled, but this Mac is irrepressible (or un-crashable). Possible clew: when I engage the power cord, the DVD player twitches .... it sounds as if it's making sure it's closed.

MacBook pro won't power up! Acting asleep, black screen, fans don't fire up. Light nr catch pulsing, have taken batt out and reset but still blank screen, help!!

MacBook pro won't power up! Acting asleep, black screen, fans don't fire up. Light nr catch pulsing, have taken batt out and reset but still blank screen, help!!

You may want to try this.
Solution A
Start up your MBP while pressing Option (alt)|, Command, P, R until your hear 3 chimes rather than 2 as indicated by apple. This worked for me the first time.
Solution B
Start your MBP while pressing Option (alt), Command, S
Hold until you see the computer automatic routine. When it finally stops type the following followed by "return":
fsck -fy
It will probably indicate some problem related to "pcscd.pub" (should be 16 instead of 17). I haven't figured out what this means but somewhere in the Internet i read it is related to scan cards...
More importantly this routine will fix any problems with your HDD similarily to disk repair. When it ends, it will tell you if it has fixed/modified anything. If it has, run the routine again by typing again "fsck -fy"
Lastly, reboot by typing "reboot" (followed by "return")
Solution C
Start up your MBP while pressing option (alt), command, S
hold keys until you see computer commands scrolling
when the routine stops type the following, each line followed by the "return" key:
mount -uw /
chmod 775 /
chmod 1775 /
reboot
After which your computer should reboot on it's own.
Each of the above has worked for me at one time or another. Once your computer has rebooted from the DVD you can reinstall OS X. If your problems started after installing 10.5.6, then I don't suggest updating until 10.5.5.
I'm very very disappointed with my 2007 MBP, it started to give me problems after 1 year. had to change the HDD and lately when I isntalled 10.5.6 it suddenly refused to start up., My previous Mac laptop (2003 866Mhz) worked for 4 years without a hitch. Ironically I've had to use it to access the internet and find solutions for my current MBP.
best of luck

IBook G3 800mhz powers & starts up, after a shutdown it won't power up

One day my iBook G3 800mhz was working fine. I shut it down and later went to turn it on and it wouldn't do anything... no startup chime, no fans, no lights, nothing. I tried resetting PRAM, PMU, and many other things which didn't work at all.
I had a local computer store check it out and they told me the Motherboard was fried. I pretty much wrote the iBook off as DEAD. I took the battery out and it sat that way for about a month.
Today, I put the battery back in and hit the power button, and IT POWERED UP & BOOTED! I couldn't believe it. I shut it down and hit the power button again... nothing, it was "dead" again. I took the battery out and let it sit that way for about 2 hours, put the battery back in, pushed the power button and it BOOTED JUST FINE. So, I shut it down, pushed the power button and it was "dead." I took the battery out again, let it sit for an hour. This time instead of installing the battery I just connected the power adapter, pressed the power button and it BOOTED. To determine if it was the battery, I left the power adapter plugged in, shut down the iBook and pressed the power button... NOTHING, "dead" again. So, it's not the battery, it's not the power cord.
When I do get it booted, I am able to do a succesful Restart by selecting it in the Finder. Also, whenever it does power up, I am able to reset the PRAM and it will start up. Whenever I do a Shutdown (either from the Finder or by pressing the power button) it won't power up unless I disconnect the battery and power adapter and let it sit for about an hour.
I've been through all the forums and many websites and have yet to find a fix for this problem.
Anyone have any ideas?

Hey Shim..,
Certified Apple Technician and he agreed that it is probably the transistor (what he called it) that is failing, since it's not holding Date & Time
OK but a transistor is a long way from a microprocessor. Uhh where did he get his...oh never mind.
I have read in some forums about the leaking super cap,
I'd be interested in those leads
but I haven't been able to find any photos or anything that shows where on the board this is located.
Just put one up here, it's from a 12" G4 1.2 GHz:
http://www.photolava.com/view/d5pr.html
They're pretty distinctive, so hard to miss.
Here's the blowed up one from the 500MHz 12" G3
http://www.photolava.com/view/d5pu.html
Now that's blowed up
Is this cap replaceable? Anyone know of any step-by-step guide that would show how to go about this, or know of any company that might do this sort of thing? If it's not too terribly expensive, I'd be willing to give it a try.
Well let's determine if it's bad first. Usually when these things fail it's pretty obvious.
I'd try blowing out all the chips we talked about first since I believe a tiny bit of smutz will cause a CMOS micro to crash.
It reminds me of when these early PMUs will crash and drag the battery down with it in a matter of days vs years.
One of the resets in those was to remove all power and let it sit just like you're doing here. This was called resetting the logic board and was SOP for a no startup situation.
Richard

Computer Won't Power Up

After a BIOS update that went wrong, I received my mobo a few days ago from MSI. I re-assembled my computer 4 days ago, but started having random crashes. Today I decided to test the memory. When running memtest86 the pc just powered off unexpectedly. I switched it back on again, but after a few minutes it shut off again. This time for good.
I disconnected the power cable and plugged it back in. 4 red lights on the D-bracket flashed, the PSU, CPU, Northbridge and case fans moved slightly and then all went dead. I didn't hear any beeps or other sounds. This response lasted less than a second. Same thing happens if I turn off and on the PSU's power switch. The case power switch generates no response at all.
Here is what I've tried already:
- Cleared the CMOS - No changes
- Striped everything, leaving only the CPU, and then re-assembled one component at a time and powered on and off the PSU after re-assembling each component - No changes
- Unplugged the case's power switch cable and direct contacted the 2 pins with a screw driver (to check if the problem was with the case's power switch) - No changes
Any thoughts?

Quote from: NovJoe on 23-July-05, 17:25:56
Exactly Bass, I hope that it wasn't a Windows flash...
That's exactly what it was. However, I got the pc running for 4 days after MSI solved the BIOS problem. After the power up problem I took the pc to the my local tech service and they said it won't power up because the board is dead. Everything else works OK when instaled on another board.
Blazer, I took the battery out and inserted it again but that didn't fix anything. I have no multimeter, so I couldn't test the battery. How long do these batteries last? My pc is 1 1/2 years old (running 24h a day, 7 days a week).

System suddenly won't power on (MSI K8N NEO2 PLATINUM NFORCE3)

System specs are
COOLERMASTER TAC-T01 WAVE MASTER ALUMINUM ATX 4X5.25 1X3.5 4X3.5INT case
MSI K8N NEO2 PLATINUM NFORCE3 ULTRA S939 AGP 5PCI SATA 1394 SOUND 1000LAN
KINGSTON HYPERX 1024MB DUAL CHANNEL KIT PC3500 2X512MB DDR 433MHZ 184PIN
ATI Radeon X800XT PE AGP
SEAGATE BARRACUDA 7200.7 200GB SATA 8MB 7200RPM 8.5MS OEM
CREATIVE SOUND BLASTER AUDIGY 2 ZS 7.1 1394 PCI RETAIL BOX
LITEON 16X DVD-ROM INT E-IDE RETAIl
MITSUMI FA404A 7-IN-1 FLOPPY DRIVE & FLASH READER CF/SM/SD/MMC/MS
LG 4163b dvd burner
Nothing has ever been overclocked on this system.
Everything is plugged into a Belkin Surgemaster powerbar.
I haven't mentioned the power supply. I'll get to that. I have been using an ANTEC NEOPOWER 480W POWER SUPPLY (ATX12V DUAL 12V RAILS ACTIVE PFC W/ DETACHABLE OUTPUT CABLES) for about a year on this system without
any issues. One morning, I wake up, hit the power button on my coolermaster case, and nothing happens.
CPU fan won't even spin. Nothing happens.
O.k., blown power supply, I think . . . .
So I take out my Antec and put it in another system. That system turns on
without any problems.
Hmm . . .
I come here, and I read posts about
potential compatibility issues with Antec power supplies. But if it's a compatibility
issue why was my system working for about a year?
O.k., fine. I'll buy a Enermax 535W EG565P-VE FMA 24P (115/230 VAC) power supply.
I just plug it into the mainboard (nothing else). Hit the power button . . .
The CPU fan spins for half a second, and then nothing.
Did my motherboard just suddenly die for no reason?
Any suggestions?

Pull the AC plug from PSU and set cmos in clear position with battery removed for atlest 20 minutes perhaps longer .
Then try to post the system barebone .
Just cpu,1 pcs memory in slot 1 , gfx card , and keyboard in PS2.
No usb devices at all including card reader and no pci cards harddisks or cdoms/dvd/floppy.
It could also be caused by a short or a malfunctioning fan connected to mobo.
Try to disconnect all case fans from mobo headers if you have any connected to additional fan holders.
The chipset fan can also be disconnected momentarily just to see if it posts.
If none of this helps , replace cmos battery and try again .

Mac Mini fan won't turn off (only while powered on)

Unlike some stories i've read while crawling around the internet trying to solve MY problem, it's not that my fan won't shut off EVER. The fan shuts down when i put it in sleep mode or shut down the Mini. No problems there. But while the computer is in operation, the fan runs non-stop.
It wasn't always like this. In the 2.5 years i've had my Intel Mac Mini, it has more and more frequently employed the fan. As of the last couple months, the fan is now in continuous use, as long as the computer is in operation. In addition, all the programs take much longer to load, and i'm dealing with programs crashing (Firefox & Safari far more than anything), Bluetooth not functioning, and the front light on my Mini is out.
As for the fan, the Mini is getting plenty of breathing room...even more than it had before the problem. I also have 22GB left on my Mini's hard disk.
Are all these problems related? Am i really just working on my last thruster here? Is my dilitium crystal just about dead? Is a warp core breach imminent? I do not have AppleCare, and i don't know if the Apple Store would look at it for free if i brought it in. Any help (no matter how small) would be greatly appreciated.
MY STUFF:
Mac Mini - 1.66 Intel Core Duo, 2G 667 HHz DDR2 SDRAM
Iomega MiniMax 1TB external HD (for audio/video files)
Iomega Minimax 1TB external HD (for Time Machine)
OSX 10.5.6

When you start your mini from cold (after at least an hour powered down) does the fan spin up to full speed immediately, or does it start out normally and then speed up after a few minutes or so? Did you have the system open for any reason just before this behavior started?
If you had the system open, it might be something as simple as the fan control cable that is not connected. When disconnected, the fan will run at full speed all the time.
It the fan runs at full speed almost immediately from cold, then it would suggest one of two things: either the system is suffering from something like a loose heatsink, or there is an errant process running that is putting the system under heavy load. You can check that by opening Activity Monitor (in Applications>Utilities) at looking to see if the CPU load is consistently high. If it is, look for a process that is causing it.
If the fan runs quietly at first, and then speeds up, after a few minutes, then it does seem likely to be a heating issue. Aside from making sure the vents around the base and on the back are clear by using a good vacuum cleaner, it's possible there is enough debris inside to obstruct the airflow. If you've opened up the system previously for any reason, now might be a good time to do so again, for a quick inspection and clean out.
I would also perform an SMC reset if you have not already done so:
To reset the SMC on an Intel mini:
-From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
-Unplug all cables from the computer, including the power cord and any display cables.
-Wait at least 15 seconds.
-Plug the power cord back in, making sure the power button is not being pressed at the time.
-Then reconnect your keyboard and mouse to the computer.
-Press the power button on the back to start up your computer.
And to ensure you are not suffering from a range of broad 'tuning' type issues, download a copy of YASU (http://jimmitchelldesign.com/projects/yasu/) and run all tasks. This clears cache files, resets logs files, updates prebinding, performs a permission repair and a few other tasks. After the reboot (which will be slower than usual) your system should run a little better.
... i don't know if the Apple Store would look at it for free if i brought it in....
You can make an appointment at the 'genius Bar' of your local Apple store - they will look at your system for free, and help with a diagnosis. What they generally wont do without charging for it is anything that involves opening the system up. However, it's worth paying them a visit for a bit of hands on work!

Cisco phones won't power up

I have cisco 6945 phones connected to two Catalyst 6513-E switches in a VSS pair.
This morning, 3 phones went offline on one of the blades on switch two (they went dark).
When I do a show module, everything checks out fine --no errors on the blade. Diagnostics pass. If I connect a laptop to the ports having the issue, the system connects, fetches an IP and everything is fine. Tried different phones, cabled in directly, etc. -phones won't power.
Here is the power info for the port(s) and blade/switch:
sho power inline g2/2/15
Interface Admin Priority     Oper      Power(Watts)    Device             Class
                 (enabled )            From PS To PD
Gi2/2/15 auto   low        off              0       0 n/a                   n/a
Interface AdminPowerMax Police ActConsumption
             (Watts)
Gi2/2/15           30.0 off               n/a
Interface: Gi2/2/15
Inline Power Mode: auto
Priority: low
Operational status: off
Device Detected: no
Device Type: n/a
IEEE Class: n/a
Discovery mechanism used/configured: Ieee and Cisco
Police: off
Power Allocated
Admin Value: 30.0
Power drawn from the source: 0
Power available to the device: 0
Actual consumption
Measured at the port: n/a
Maximum Power drawn by the device since powered on: 2.6
Absent Counter: 0
Over Current Counter: 0
Short Current Counter: 0
Invalid Signature Counter: 0
Power Denied Counter: 0
UIC-DIST6513-02#sho power switch 2
Switch Number: 2
system power redundancy mode = redundant
system power total =     3795.12 Watts (90.36 Amps @ 42V)
system power used =      2560.74 Watts (60.97 Amps @ 42V)
system power available = 1234.38 Watts (29.39 Amps @ 42V)
                        Power-Capacity PS-Fan Output Oper
PS   Type               Watts   A @42V Status Status State
1    WS-CAC-4000W-US    3795.12 90.36 OK     OK     on
2    WS-CAC-4000W-US    3795.12 90.36 OK     OK     on
3    none
4    none
                        Pwr-Allocated Oper
Fan Type               Watts   A @42V State
1    WS-C6513-E-FAN      375.06 8.93 OK
                        Pwr-Requested Pwr-Allocated Admin Oper
Slot Card-Type          Watts   A @42V Watts   A @42V State State
1    WS-X6148E-GE-45AT   112.56 2.68   112.56 2.68 on    on
2    WS-X6148E-GE-45AT   112.56 2.68   112.56 2.68 on    on
3    WS-X6148E-GE-45AT   112.56 2.68   112.56 2.68 on    on
4    WS-X6148E-GE-45AT   112.56 2.68   112.56 2.68 on    on
5    WS-X6148E-GE-45AT   112.56 2.68   112.56 2.68 on    on
6    WS-X6148E-GE-45AT   112.56 2.68   112.56 2.68 on    on
7    VS-SUP2T-10G        435.54 10.37   435.54 10.37 on    on
8    (Redundant Sup)       -     -      435.54 10.37 -     -
                        Inline         Inline         Inline         Inline
                        Pwr-Requested Pwr-Allocated Local-Pwr-Pool Power
Slot Card-Type          Watts   A @42V Watts   A @42V Watts   A @42V Status
1    WS-F6K-48-AT          3.78 0.09     4.20 0.10    34.44 0.82 On
2    WS-F6K-48-AT         80.64 1.92    88.20 2.10    34.44 0.82 On
3    WS-F6K-48-AT         91.98 2.19   100.80 2.40    34.44 0.82 On
4    WS-F6K-48-AT         88.20 2.10    96.60 2.30    34.44 0.82 On
5    WS-F6K-48-AT         76.86 1.83    42.00 1.00    34.44 0.82 On
6    WS-F6K-48-AT         91.98 2.19   100.80 2.40    34.44 0.82 On
system auxiliary power mode = off
system auxiliary power redundancy operationally = non-redundant
system primary connector power limit =   10920.00 Watts (260.00 Amps @ 42V)
system auxiliary connector power limit = 10500.00 Watts (250.00 Amps @ 42V)
system primary power used =              2560.74 Watts (60.97 Amps @ 42V)
system auxiliary power used =            0 Watt
                        Inline         Inline-Pwr     Inline-Pwr     VDB
                        Pwr-Limit      Used-Thru-Pri Used-Thru-Aux Aux-Pwr
Slot Card-Type          Watts   A @42V Watts   A @42V Watts   A @42V Capable
1    WS-F6K-48-AT       1066.80 25.40    38.64 0.92     -     -     Yes
2    WS-F6K-48-AT       1066.80 25.40   122.64 2.92     -     -     Yes
3    WS-F6K-48-AT       1066.80 25.40   135.24 3.22     -     -     Yes
4    WS-F6K-48-AT       1066.80 25.40   131.04 3.12     -     -     Yes
5    WS-F6K-48-AT       1066.80 25.40    76.44 1.82     -     -     Yes
6    WS-F6K-48-AT       1066.80 25.40   135.24 3.22     -     -     Yes
Totals:                                 639.24 15.22     -     -
What could be happening here?

Just want to put it out there that I am no "expert" on what a 61XX line card can/can't do.
Can you try to run a TDR on the line?
1. Command: test cable tdr interface g2/2/15;
2. Wait for 61 seconds for the test to run;
3. Command: sh  cable tdr interface g2/2/15; and
4. Post the output to #3.
NOTE: Yes, it takes 61 seconds to run a TDR on a chassis-based system.

IMac Overheats & Fans Won't Speed up to Cool

I have a 2007 iMac that for some reason the fans won't speed up above idle and so if it's put to heavy use eventually it will overheat and shutdown. It was a while before I had installed software that measured temperatures of devices or fan speeds inside the iMac and then determine what was happening and that indeed the iMac would shut off when the power supply got too hot.
Then I found some of these apps that let you control the fan speed manually or customize the threshold and with some of these I was able to speed the fans up. The one I chose as the best was Derman's version of Fan Control, a control panel which is automatic and effectively keeps all the temperatures normal and has been my solution to the problem. Many people seem to like SmcFanControl for some reason but I don't because it's crude and totally manual in setting the base fan speed which keeps the fan running higher than normal all the time but doesn't help much to cool if the iMac gets really hot unless you manually speed up the fan more.
The whole thing baffles me. Why can this control panel speed up and control the fans just fine and effectively cool the iMac but left to it's default control it does nothing and allows the iMac to overheat? And has anyone had this problem and found a way to fix it?

As you have already noted, the problem with SMCFanControl is that it only sets a higher minimum speed which leaves the user to have to manually ramp it up (or define a higher preset for various level tasks) when running something that will tax the CPU. Cooler idle speeds will do little to extend the life of your computer. My new Quad-Core i7 Mac Mini idles at a cool 110-115 degrees Fahrenheit (yes, that is COOL in computer terms to those that think it's hot because a day in Arizona at that temperature feels very hot).
Manual control is better than nothing if you know you're going to play a game or encode a file, but it stinks if you have a batch of files and you leave the room and it finishes and your fan keeps needlessly running at higher speeds (possibly for days if you left on a trip and left a list of videos to convert while you're gone). I've left feedback on SMCFan's web site, but perhaps having an upper limit is beyond the author's capability?
Derman's Fan Control has exactly the features needed, but sadly it hasn't been updated since 2007 as far as I can tell (Leopard Era) and thus may not be suitable for a newer Mac running Mountain Lion (the preference pane is also not 64-bit). iMacs and Macbook Pros all have different fan setups for different equipment and my Mac Mini has its own case fan. In my case, a Quad i7 will quickly reach 180+ degrees Fahrenheit or hotter when encoding with Handbrake at full speed. Apple's own fan FINALLY kicks in beyond a smidgen at around 90C/190F, but it doesn't reach near full speed until it gets hotter yet (it seems content to let the CPUs roast at 90C/190F; I think Intel's automatic throttle is at 105C/221F, so perhaps Apple thinks that 90 is perfectly fine. I'll admit the case isn't super hot or anything, but the concern should be the shelf life of the CPU and other components in the computer, not whether it will run at that temperture for weeks or months or even a year or two.
My PowerMac Digital Audio PPC tower (upgraded to 1.8GHz/1.5GB with dual 1.5TB Sata drives and used as a whole house audio/video server for over 6 years on nearly 24/7 and god knows how much before I bought it used in 2006) still works fine (case fan is starting to get a bit noisier, but still functions and the machine was on 24/7/365 for the most part! It was built in 2001! That's 11 years with no component failures and over 4 years 24/7 on the 1.5TB drives). I'd like my new Mac Mini Quad i7 to last at least half that long.
In short, there aren't many good solutions because no on has bothered (or at least bothered to update) a good fan control for the Mac. I found a fan control program to run in Windows on my Macbook Pro and it has no configurable options, but automatically ramps at a very good set of default temperatures and so it's just set to automatically run at startup and forget (I wish I could say the same about OSX; Apple's defaults seem to be set for quiet operation with little thought about longevity).
I'd gladly pay a few bucks to have a good quality fan control program in OSX that is up-to-date, 64-bit and works fine with my new computer in Mountain Lion. It's a shame I can't seem to find one to buy.

Cisco WLSE 1130 won't power on.

I have a WLSE 1130 that the previous admin had just sitting on a shelf not being used, in fact, I don't think it's ever been used. I had powered it on to give it a basic config, IP, ect. and I issued the shutdown command and powered it off. Now, when I plug AC back into it, it won't power on. The power supply fan kicks on and the power LED blinks at about 2 second intervals. Is it in a security mode or did I power it down wrong? Any help would be great. Thanks!

While connecting the power make sure that the equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.
For the further description following LED indication and guide will help you
http://www.cisco.com/en/US/docs/wireless/wlse/2.13/1130_19/installation/guide/1130over.html#wp1034993

15" MacBook pro won't power up

I'm using a 15" MacBook pro from July 08 running snow leopard. When I went to recently turn it on I realized the battery had died since the last time I used it. After letting the battery charge up to at least 2-3 lights and keeping it plugged in, I tried to power up. When I push the power and release, the fans and drives start then shut off instantly. If I keep the power pushed in it stays on until the light on the front latch starts to blink and everything shuts off. I tried with only battery, only power adapter but no luck. I followed every step on apple's troubleshooting page for a MacBook that won't power up but nothing has changed. I will take my computer to the apple store if need be, but I'd rather be able to fix this myself.
Any help?

What were all the steps you tried to do? Some people say this but they don't do everything because everything is not in the book:
Reset the SMC:
-Pull the battery
-Unplug the MagSafe adapter
-Press and hold the power button for 5 seconds then release
-Wait 5 seconds
-Put the battery back in
-Plug in the power
If the SMC reset does not resolve the issue make an appointment most likely you are having a hardware issue and probably need to replace your logic board.

IMac won't power on

iMac 350MHz, slot-loading
anyhow, it won't power on. This isn't an "it won't boot", or an "it's not plugged in" or anything like that.
I push the power button. I see the light come on for about one quarter of a second. Maybe I hear a little static buildup in the CRT. Then everything shuts off. light out, no more action. I can push the button as many times as I like, and it won't come on.
Can't reset the PRAM or anything like that, cause it doesn't GET to where it would reset the PRAM.
Any suggestions?
I'm planning to take the thing apart tuesday evening, but I'd like to have some idea what I should be working on.
In the past I've had trouble with the power, and wiggling the power cord has caused it to power off before (when it's running normally). It got a lot worse today, and now it won't come on at all.

Just as an update, I looked on ebay, and found another machine which was essentially identical to mine (excepting RAM and HD updates I'd done) for about 25 USD. It was local, so we just picked it up (saving shipping), and I swapped in my RAM and HD (plus my CD drive, since the one it came with didn't want to work...), and I'm now back up and running...
It's pretty nice... got some stickers on the case i'll be taking off... display is MUCH brighter, and it doesn't lose power, even when I put it to sleep!! so I can now finally put this thing to bed at the end of the day, give the circuits a bit 'o well deserved rest. Only downside is that the crt whines a bit.. but it's really not noticable over the current combination of crickets (the windows are open) and the massive fan on my dad's CPU. hopefully it won't be too much of an issue, but I like having a bright display enough that I don't care...

MSI K8T Neo-FIS2R won't power-up

My MSI K8T Neo-FIS2R won't power up when I switch it on. All that happens is the fans "jolt" a few millimeters and that's it
Using an X-Pro 460w which does work as I have tested it on this PC
Any help would be greatly appreciated

I think I have found out the problem
Using my old Enermax (350) I was able to boot up the AMD 64 2800 every time but the PSU made this weird electrical sound - I think because it was being overloaded (I think as it doesn't make this sound when used with my XP 1800). I then reverted back to my new X-Pro (460w) and after a few attempts I managed to get the ram module and CPU powered... slowly adding more fans it became harder to boot and eventually the GPU fan wouldn't run once I plugged another fan in... I'm guessing this is because my PSU is too weak to power the juice guzzling AMD
I'll need to break the bank once again I suppose

Upgraded eMac, now fan won't work

Hello,
I just upgraded my son's eMac - put in 1GB RAM, Pioneer DVD-R drive and 320 GB hard drive.
All the upgrades work just fine (and he is very happy), but now the fan won't work. I've checked and double-checked the connections - there were two connections that I've unplugged and plugged in three times. The fan can spin if I flick it, so it is not impeded in any way.
Any ideas?
eMac Mac OS X (10.4.9)

Yes, the fan was operating fine because it was so loud you couldn't miss it.
I appreciate Roam's comments, but my electrical engineering background is spotty. I understand that it is either the fan or the connection to the fan, but I have not the tools nor the knowledge to connect a battery to see if the connection is good.
What I can't figure out is what went wrong. There are only two connections coming from the fan unit, and one is actually the power supply that goes to the electrical plug (which is part of the fan unit). That one is obviously working fine because the computer powers up. The other one is this simple looking small snap-in connector that seems like a total no-brainer to attach. It's not something that could even easily get bent or anything.
I'm obviously missing something important, or the fan picked a really weird time to stop working.
For now he's shutting the computer down when it feels hot. I'm sure that's not a good solution.

Another iMac won't power up...

My 15" iMac G4 won't power up. When I first plug it in, you hear what sounds like some kind of reset sounds coming from either the optical combo drive or the hard drive and then that stops. The fan seems to work and the red light is on under the service cover on the bottom of the iMac. When you press the power on button, nothing else happens. I tried resetting the PMU and it didn't make a difference. Also tried powering up without the RAM plugged in, no change. The PRAM battery seems to work (3.65V ?).
My first thought is either the power supply or the motherboard; can anyone suggest any way determine which it could be (or if it might be something else)? BTW, another data point; pressing the caps lock key on the keyboard doesn't result in the caps lock light coming on.
Thanks,
Ron
15" iMac G4 (Flat Panel)

Read: Troubleshooting: My computer won't turn on
Listen carefully for any noises, fans, any signs of life at all. If you performed all the troubleshooting steps and there are no signs of life whatsoever it is likely to be a failed power supply.
In that case bring it to an Apple Store. Provided your iMac is not more than a few years old, replacing its power supply is not expensive.

Fan won't power on

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