RAM Upgrade - Monitor Won't Turn On

I just upgraded my iMac from 512 mb of RAM to 2 gigs. Now when I turn it on, the computer boots but the monitor doesn't turn on. Any solutions?

It would help to know the model identifier of your Mac to figure out the exact specs for the RAM; here is how to find it (compliments of OWC - macsales.com):
They are also an often recommended source for RAM; I would check their website before purchasing PNY.

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I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

If it won't turn on then the monitor is dead (power supply?, video circuits?). Not worth repairing.
If you have a new iMac then it has thunderbolt. So exactly what is that monitor you are trying to connect? For TB you can connect a mini-displayport monitor. Probably (not 100% sure with TB) can use dvi or vga too if you have the appropriate adapter.

Upgraded RAM, now it won't turn on.

I bought a 1 GB stick from NewEgg.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145048&Tpk=20-145-048
I installed it into my 15'' MBP Core Duo. Now when I press the power button, the light at the front just blinks. It's not a pulasating light. It's like a strobe light. And nothing else happens.
Was this the wrong RAM to buy? I know I installed it right. What else could be wrong?

The specs are fine. The RAM could be bad. Have you tried it in the other slot (the slot may be damaged?) Are you sure the RAM is inserted properly and fully seated? What was already installed in the other slot?
Also see,
Troubleshooting a MacBook or MacBook Pro that won't turn on

GX740 monitor won't turn on when lid is opened and weird HDD specs?

This is the second GX740 I have received after returning the first one due to a defective hard drive.
I have changed all the power options so that closing the lid does nothing except switch off the lid. However, when I close the lid and reopen it, the screen won't turn back on. The system itself is still on and working though (ie. cpu running, harddrives running) but its just the screen that won't turn on. The only thing I can do is hit the on/off button, which I have set to go to sleep. The funny thing is that when I hit the on/off button again and bring the pc out of sleep mode, the screen will start functioning normally (ie. when I close it and reopen it, the screen will turn on) but if I switch it off or restart it, then the monitor will not turn on when the lid is closed and opened again.
Also another very strange thing I noticed is that although my harddrive is a 320gb 7200rpm WD drive, the model number in Device manager is WD6400BEVT - which I'm guessing is the number for the 640gb drive?! This hasn't caused any problems so far but it seems very odd to me and I am just wary of complications in the future as I returned the first GX740 I got due to a defective harddrive
Also, I have updated windows 7 completely.
Any ideas?

Please consider taking a look at this faq article: http://support.msi.eu/faq/index.php?sid=446722&lang=en&action=artikel&cat=188&id=115&artlang=en
It does seem the same issue and for that you should update the graphic drivers and VBIOS. You can find them here: http://www.msi.com/index.php?func=searchresult&keywords=GX740&table=download
Vbios is under Firmare and VGA drivers under Drivers.
Good luck.

Monitor won't turn on after "sleep"

Hi,
I have an Apple Studio Display 17" hooked up to a New Mac Pro, running 10.4 Tiger. When the computer goes to sleep the monitor won't come back on when I wake it unless I shut the monitor off and turn it back on again. Why?
Dan

What did ssh probing tell you.
Try using PC blindly. For example, leave music player on screen, wait for the fault to appear and than start it. If you hear the sound, then it is either:
Your closed-source driver mistake. Try changing it's version either side or replacing with open-source one. For radeon it is really better already.
Your monitor can't wake up from sleep. Nothing can help it, then. When rebooting PC, it gets a special signal, different from that on sleep.

My 2nd monitor won't turn on when plugged in

Hi guys,
I have a Macbook Pro (June 2012) and i am using the thunderbolt port to have an external monitor (Neovo F-417)
I am using an adapter between the monitor (which is VGA) and and the Macbook (thunderbolt port)
When the mac is on and i plug in the display, the screen goes blue for a second as it should but the monitor doesn't turn on but it thinks that the screen it there because it shows up in Displays in System Preferances and it allows me to drag the cursor off the Macbook screen and onto the blank screen
Any ideas?
Thanks
Chris

Then your adapter may be inadequate for converting to VGA.
There is a perfectly good Analog VGA signal already present. It is presneted on the DVI port on a Mac Pro display card. Asimple adapter will re-wire it for VGA use, no conversion required. Does no apply to your MacBook Pro.

Changed BIOS settings, Monitor won't turn on (Help with resetting CMOS)

Hello,
I have an HP Envoy 700 PC Series. Running Windows 8.
Everything was working fine, until I changed/disabled some settings in the BIOS, an dnow the PC turns on without any display.
I need to reset my Bios settings.
I tried removing the CMOS battery for an hour, still the monitor doesn't turn on.
I tried playing with the jumpers (assuming I'm doing it right).. Any pointers?!
Pc turns on normally without a display. This all happened when I changed my BIOS settings.
Any help would be great.
Thank you

The fact that you removed the CMOS battery usually resets the BIOS so this may not be the problem, however, the computer must be left on for up to 24 hours to permit the battery to charge itself.
You may opt to try another monitor.
You may wish to test or troubleshoot via this:
http://pcsupport.about.com/od/findbysymptom/ht/testmonitor.htm
Please mark my post as SOLVED if it has resolved your problem. It helps others with similar situations.

Installed Geforce GTX 650 graphics card, but monitors won't turn on

I have installed a geforce gtx 650 graphics card in my hp pavilion and a corsair hx750 power supply, but after installing it and trying to get it to work the monitor won't detect any signal from the dvi plugs. I've tried looking up the problem before, and I think it is because the hp pavilion is an AMD, so it is locking out any new hardware in the computer, but after uninstalling everything and putting the original power supply back in, the monitors still won't get signal. I don't know if I might have broke something while trying to hook up the power supply or graphics card, but i figured someone else could figure out the problem.

Hi,
Please post the HP product number for your PC. How to Find the HP Model Number and the HP Product Number or let HP automatically find your PC model number and HP network attached printers.
Monitor or monitors? Title indicates monitors.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT

3 beeps after ram upgrade, computer will not turn on, please help! I have tried everything.

I have a late 2011 Macbook Pro 15 inches, i recently upgraded the RAM from Crucial 8gb (4gbx2) to Crucial 16gb (8gbx2). I have done thies before, was er careful, and had antistatic clip, clean work surface, etc. When trying to turn the computer on again, i hear 3 slow beeps, repeated three different times, and the computer does not turn on. I have been looking around for solutions.
I have already swapped the memory modules, cleaned them, dusted the whole computer with air can, put the old ram in and still have the 3 beep problem. It no longer works even with the old ram. The computer was working perfectly fine before this.
Am i missin a step? I saw in a video on youtube that i have to reset the RAM with Alt+P+R+Power button, but nothing happens.
Please help, i am self employed and my Mac Book Pro is the computer i work with!
I have Lion operating system, everything updated very recently. Stock 512 gb hard drive.

Thanks for the quick reply Allan, i have reseated the ram 4 times, swapping top and bottom Ram modules, and pushing them in firmly and pressing down evenly with both hands.
I tried to put the old ram in as well in case the New RAM was bad, and that did not work anymore either. I am from Mexico and live in Mexico City, and it is not easy to send the RAM back and get an exchange. I will go to a MAC repair center on monday, but think i am missing some simple step somewhere. As i said this is my work computer and i really need it!
I have reread what i wrote before, to clarify my computer was working fine with the old 8 gigs of ram, i just wanted it to be faster, and bought 16 gb since they are now much cheaper than a few years ago.

RAM Upgrade, now won't boot

Hi all,
I recently bought 2 x 2GB Kingston RAM modules to upgrade my MBP from it's current 2GB (2x1GB) up to 4GB. The Kingston part number is KVR667D2S5/2G
When I swap over the modules, the laptop won't boot at all, just a black screen and the white LED just stays on.
I've tried each module individually and in each slot but no joy.
Please can anyone help me? Am I missing something basic??
My MBP is a 2.5Ghz 15" model, MB134LL/A, which according to the specs can have "Up to 4GB of 667MHz DDR2 SDRAM".
Thanks in advance,
Anthony

It's got me puzzled, and a bit annoyed really, as it should work up to 4GB. I've also seen reports from other people who have these same modules working in various MBP's.
It does/will work at 4GB with the proper RAM. I'm not surprised that some of the Kingston's VR works for some MBPs, but not yours. Here's why: Apple's specs are very tight (tolerances, if you will), compared to the PC industry, and seem to get tighter with each new OS upgrade. When you buy guaranteed Mac compatible RAM, it means that RAM has been tested with and passed Apple's specs. Just by chance, some other generic RAM (KVR, for instance), may pass and be compatible with Macs, while others won't. You obviously got some the is not compatible, and even if it was now, it might fail Apple's future specs. That's why I'd never buy KVR or generic RAM. I don't need the hassle that you're going through now, or, if not now, probably would go through in the future.

Activity Monitor won't turn off

I am running Activity Monitor, and it is saying to "please wait while sample is taken". It has been doing this for hours now, and I cant turn it off.
I tried shutting my computer down, but it wont allow me until I quit the Activity Monitor.
Any help would be greatly appreciated

Select  ▹ Force Quit... from the menu bar, then select Activity Monitor and press return.

TS1587 My friend has a G4 that will NOT turn on at all. The monitor power button will light up, but monitor won't turn on; the the computer power button lights up when pressed but won't stay on and nothing else happens. He said it USED to at least turn

Anyway, not sure if my question was sent, so here it goes: My friend's G4 won't power on....the power button lights up briefly when pressed, but nothing happens....and, cannot even get the montior to power on...does the same thing. He said it used to at least turn on, but now it's doing this. Help!!?? What should we do??

If you are able to use a multi-meter, you can test to see if the power supply is culprit. Use the Power Mac G4: Power Supply Voltage Test (Sawtooth G4) document to aide you in the proceedure.
If not the Sawtooth, Power Mac G4 (Gigabit Ethernet): Power Supply Voltage Test.
If a Quicksilver, use the pinout of the QS PSU connector here:
http://www.xlr8yourmac.com/tips/MDDps_mods/MDD_PSMods.html#update
and a testing description here:
http://www.jcsenterprises.com/Japamacs_Page/Blog/D275729F-09DA-4FBB-96B3-BEEEB2C 04619.html
The test description is for a MDD, but the basics are the same.
If a MDD,follow my instructions in the linked articl above.
One should also try a PMU reset:
http://support.apple.com/kb/ht1939
One should also replace the 1/2 AA PRAM battery.
Also, check that the 20, 22, 24 pin connector is properly fitted to the motherboard, and that the wires are properly inserted in the connector. There is also a 10 wire ribbon, which goes from the motherboard to the power button board. Make sure that the ribbon is firmly connected at both ends, and that there is no apparent damage to the ribbon.
If the power supply tests good in a MDD, the power switch board could be suspect.

My monitor won't turn on! mbp 15-inch 2008

So last night my mbp just suddenly turn off. When I started it. the mechine was working(im not sure tho. cuz You can tell by the fan sound) but the monitor was completely black!!!!!!!!!!!
i charged it. i let it sits for days until the battary went out and recharge it but its still stuck samesituation! someone help!!!

Hi there
If you have a MacBook Pro 15-inch and 17-inch with NVIDIA GeForce 8600M GT GPU then,
Check if the computer is powering on:
1. Reset the computer's PRAM
2. Verify that you hear a startup chime when the power button is pressed.
3. Press the Caps Lock key and verify its green LED comes on.
If there is no chime, or no green Caps Lock LED, the computer has a power issue that is not related to the NVIDIA GPU. If there is a chime, and the Caps Lock LED works etc, then you can get the GPU replaced.
Just take the machine to an Apple Authorised Service Provider or an Apple Retail Store.
Good luck

Help, MBP 2,2 won't turn into Standby after upgrade to 10.7.2

Recently I've upgraded from 10.7.1 to 10.7.2 via the Software-update utility, however now my MBP model 2,2 won't turn into standby mode when it is connected to the power adapter. Not when I close the lid, or when I select Standby via Apple -> Standby.
On the other hand, when my MBP is running on battery there is no problem with going into Standby mode, so I thing it has something to do with the settings that are suddenly changed...
Does anyone now if the settings have changed somehow? Or where I can change the settings?
Thanks in advance!

Hello Bastiaan,
The first two days after installation of 10.7.2 and the Aperture update my laptop also refused to go to sleep, but that behaviour stopped recently all by its own. When I looked at the Activity monitor I saw the mac was indexing spotlight and rebuilding libraries, so probably it did not want to go to sleep while there still was critical work to be done to migrate properly to iCloud.
I do not know of any other preference settings that might prevent sleep.
So perhaps you should look at the Activity Monitor, if some high priority process is running, that might prevent sleep.
If closing the lid does not work, that might be a hardware problem, but it seems to be unlikely, since it works when on battery power. Does your computer go to sleep when on power adapter, if you set the computer sleep interval to a very short time?
Regards
Léonie

Safari won't trust ANY website certificate, even after I tell it to, and i can't connect to the APP store even though I'm clearly connected to the internet. This all started immediately following a RAM upgrade. Please advise.

Safari won't trust ANY website certificate, even after I tell it to (click Always trust this site option), and i can't connect to the APP store even though I'm clearly connected to the internet. This all started immediately following a RAM upgrade. Please advise.

Take each of the following steps that you haven't already tried. If the problem isn't solved, ask for further instructions.
1. Are the current date (including the year) and time shown on your system clock? If not, correct them and test.
2. Disable any third-party firewall, "security" software, or network filter.
3. In some versions of OS X, Parental Controls has a bug that prevents loading of secure websites. Turn it off.
4. The process by which OS X checks the validity of root SSL certificates doesn't work behind the authenticating SOCKS proxies used on some enterprise networks. If applicable, contact your network administrator. The proxy server may need to have its settings changed.

RAM Upgrade - Monitor Won't Turn On

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