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Re: installation memory problem mac osx g5
Did you install the RAM correctly? The RAM needs to be installed in matched pairs in a G5. There ar 2 banks of RAM slots. Ram should be installed from the centre outwards. (i.e bottom slot of the upper bank and top slot of the lower bank). Then move on to the next pair.
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Below is the information for the 3,4 diag error.
Memory modules are detected, but a memory failure has occurred.
If two or more memory modules are installed, remove the modules (see your service manual), then reinstall one module (see your service manual and restart the computer. If the computer starts normally, continue to install additional memory modules (one at a time) until you have identified a faulty module or reinstalled all modules without error.
If available, install working memory of the same type into your computer.
The memory specs for this computer are listed below.
DDR3 Synch DRAM Non-ECC Memory
Four (MT, DT, SFF), Two (USFF)
Up to 4GB
16GB(with 1333MHz speed memory)/8GB for uSFF only
The OptiPlex 790 system supports up to 16 GB of memory in the mini-tower (MT), desktop (DT), and small form factor (SFF) chassis with 64-bit operating system. The maximum memory supported in the ultra-small form factor (USFF) is 8GB. The memory speed supported is 1333MHz DDR3 memory.
However, 32-bit operating systems can only use maximum 4GB memory address space. Certain components within the computer require address space in the 4GB range, any address space reserved for these components cannot be used by computer memory the amount of memory available to the operating system is less than 4GB. NOTE:
Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance.
The total amount of available memory will be less than 4GB. The amount less depends on the actual system configuration. To fully utilize 4GB or more of memory requires a 64-bit enabled processor and 64-bit operating system
hmm i dont thing your mac can take that flash version you internet explorer doesnt work with and old mac like your *discontinued internet explorer version*and you really should get a new mac the oldest one you should be using would be a imac g3 or g5
This is just an off-chance thing. The three lights could indicate a failed or badly seated memory chip.
Turn the Mac off and remove the side. Remove the perspex panel and then remove the grey plastic panel containing the 2 large fans (it just pulls out towards you).
You now have access to the RAM sticks. Use the illustrations on the inside of the Aluminium door to identify the sticks and so that you can remove and re-seat them. Refit the fans and the perspex panel and see if the mac will start up. If not, you may have to try extra RAM (depending on how much you have installed). These macs have their RAM installed in matching pairs so if you have only 2 stick in your Mac then you need to get 2 more in order to eliminate the first 2.
Report back if that helps.
The RAM needs to be installed in matched pairs in a G5. There ar 2
banks of RAM slots. Ram should be installed from the centre outwards.
(i.e bottom slot of the upper bank and top slot of the lower bank).
Then move on to the next pair.
Interesting choice which would seem to boil down to quantity over quality. Personally, I would rather go for quality, that is the highest motherboard acceptable/allowable speed of the memory. Even if the memory is only 2Gb and you can run it at max speed (with latency 2) it should dramatically improve performance. Additionally, the 2Gb (low compared to 4) could be compensated with an efficient memory management of the OS (hopefully XP and not Vista). Memory usage/management could be tweaked at the registry, msconfig, Startup and general ways of how the PC is used.
It would be appreciated for a postback/update if and when you have installed your choice of memory and hopefully, I can be of further assistance with a few tips on Memory usage/management; tweaking.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.