Question about Apple Power Mac G4 Desktop

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Video goes crazy after boot up

I have 2 video monitors connected to a Nvidia GeForce 7300GT 256MB GDDR PCI express card. Right after boot-up all looks good... then after about 30 seconds the monitors go crazy with lines. You cannot read anything after that. Any ideas?

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There is a possibility you have a software problem but I suspect that the video card is failing.

Posted on Feb 22, 2009

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Additional vram


Compatibility issues
The most significant issue is for users of PCI cards. PCI cards can operate at either 3.3V or 5V, but only 3.3V cards can be used in a PCI-X slot. Obviously such PCI cards will only operate at their normal speed. The 2 100Mhz slots share a single bus, and if a PCI card is placed in one of these slots then both will operate at normal PCI speeds, but the third slot will not be affected (and vice-versa). Users of expensive audio/video editing cards may need to renew their equipment, unless they go for the 1.6 Ghz model.
Although the G5 is a 64bit processor, it is fully compatible with existing code, although obviously applications optimized specifically for the new processor will have an extra performance increase. The single exception to this (as far as I know) is Virtual PC. This software used a feature of G3 and G4 processors known as "pesudo little-endian mode" which is not present in the G5. Microsoft is said to be working on fixing this.
Another concern is the loss of parallel ATA, as many users may have hard drives they wish to carry over to their new systems. Apple have explicitly stated that serial to parallel adapters will not work, however people have managed to connect their drives to the ATA bus that the optical drive is on.

Mar 25, 2008 | Apple Power Mac G5 Desktop

Tip

Quad-Core and Eight-Core Mac Pros (2009 editions)


New Mac tower boosts performance despite speed drop

by Milind.S.Shetti

Though you wouldn’t know by looking at it, Apple’s new tower, the Mac Pro, has just received a major overhaul. The two tower models pack a brand-new processor and video system, and feature a reorganized internal design. However, they have lower clock speeds than their predecessors.
Product:
Mac Pro Quad-Core/2.66GHz
Rating (Scale) 5 - Superior
4 - Very Good
3 - Good
2 - Fair
1 - Poor
Pros
New Nehalem microprocessor; easier to upgrade internal components; lower price.
Cons
None significant.
Company
Apple
Price as rated $2,499
Best current price $2,388.00
Product:
Mac Pro Eight-Core/2.26GHz
Rating (Scale) 5 - Superior
4 - Very Good
3 - Good
2 - Fair
1 - Poor
Pros
New Nehalem microprocessor; easier to upgrade internal components; lower price.
Cons
Most routine apps perform better with fewer, faster processors.
Company
Apple
Price as rated $3,299
People who read this also read:

Last year’s standard Mac Pro () featured a 2.8GHz eight-core Intel Xeon processor based on the Harpertown/Penryn architecture. This year, there are two models: a quad-core system with a 2.66GHz Nehalem Xeon processor, and an eight-core model running two quad-core Xeon processors at 2.26GHz. Also new to the Mac Pros are Nvidia GeForce GT 120 graphics cards and a revamped interior designed to ease user access for upgrading internal components.
Similar but different

Aside from the second optical-drive slot on the front, the Mac Pro continues to use the same big-handled, aluminum case as the Power Mac G5, introduced nearly five years ago. There are some minor changes to the exterior, though—specifically in the type and number of connections. First, the two FireWire 400 connectors from previous generations have been replaced with backward-compatible FireWire 800 ports, bringing the number of FireWire ports to four—two on the front and two on the back. The five USB 2.0 ports, two on the front and three on the back, remain. On the graphics card, one of the two dual-link DVI connectors at the rear of the system has been replaced with a Mini DisplayPort connector, which lets you connect either to Apple’s 24-inch LED Cinema Display () or, with adapters (not included), to a second DVI display.


The new Mac Pros have been remodeled on the inside to provide for easier access to components.

Upon opening the case, you immediately notice major changes in the layout of the components. The memory modules are no longer installed on two sliding trays—instead, the memory and processor all rest on a sled at the bottom of the case, which you remove by releasing two latches. The quad-core Mac Pro has four memory slots that ship with 3GB, 6GB, or 8GB of 1,066MHz DDR3 SDRAM modules; the eight-core Mac Pro has eight DIMM slots for a maximum of 32GB of RAM. The memory design no longer requires the large heat sinks.

The Mac Pro still has four internal cable-free hard-drive slots, using a sliding tray to attach the drives directly to the motherboard. Now, though, the large plastic piece holding the fan near the front of the Mac Pro is much smaller, giving your fingers more room to grip the hard-drive sleds. This is a small but welcome change. I can’t tell you how many times I’ve struggled over the years to remove that first drive. Another nice design change helps ease the removal of PCI cards from the four full-size PCI Express 2.0 card slots. In the past, to remove a card, you’d first need to turn two large thumbscrews that held a small plate keeping the cards in place. Then you had to feel around behind the card, searching for a little plastic tab mounted on the motherboard, which you needed to lift up in order to release the card. With the new Mac Pro, that second step is much easier. You now simply push a single thin bar that extends across all the PCI Express 2.0 slots to release any or all cards. Apple has also made installation of its add-on Apple RAID card much easier: you just put it into the clearly marked top slot, and you’re ready to go.

Installed in the first PCI Express 2.0 slot is the new Nvidia GeForce GT 120 graphics card with 512MB of video RAM; the last generation of Mac Pros came standard with an ATI Radeon HD 2600 XT graphics card with 256MB of memory.

on Dec 30, 2009 | Mac Desktops

1 Answer

How to put the monitor cable in to the mac mini


You need the correct monitor or adapter that works with your mini.

Feb 16, 2013 | Apple MAC MINI 266GHz Intel Core 2 Duo 8...

1 Answer

Two thin lines (vertical) one blue one yellow permenantly on screen.


Try to check first if the video card cause these lines..
Turn off your computer, replace the video card and check if the lines still display..

If you still see lines, check the cable connected on your monitor to the video card, see if its properly secure and not loose.

If you still see it... then my suggestion is you bring your monitor to a credible technician..see also if your monitor still have its warranty

May 26, 2010 | Apple iMac Flat Panel Fan (p/n 922-4677)

1 Answer

Anyone have seen a message like this: ''There was as initialization error. A valid video device could not be found for playback. [-70017]''? I'm Using Mac OS X 10.5.5 / P4 3Ghz HT / 2*512Mb DDR400 / nVidia...


I've downloaded NVinstall V.55..This fixed my problem! My graphic memory can be increased or decreased with this program simply by selecting he amount(128,320,512,760,1024 mb).

Jan 07, 2010 | Mac Desktops

1 Answer

Resolution issue Acer V223w


Hi, I'm sorry to hear you are having trouble....
THis is a tricky one. My first step would be to connect another screen to your G5 and connect your V223w to another Mac... Are you able to do this, do you have access to another system, could even be a PC ( in the worst case )
Ideally, having 2 screens connected to your G5 would be the best situation.
THis way, with one working screen, you can attempt to modify the resolution and refresh rates on the V223w from the good screen, be sure to activate screen mirroring, otherwise you will not have access to the other window of monitors system preferences.
If you can get two monitors connected and mirroring is not an option, then either your monitor is KAPUT or the video card secondary port is KAPUT, try switching the port of the card your displays are connected to. I think they are both DVI ports. If the opposite screen is now working, then you know it's the port on the video card.
Hope this will get you through it.

Mar 28, 2009 | Apple Power Mac G5 Desktop

1 Answer

NVIDIA Firmware Update Utility (Version 5.67)


Hi, Sorry you are having problems,
Well, take a look at all the trouble these guys went through:
http://forums.macrumors.com/showthread.php?t=535659

Mar 20, 2009 | Apple Mac Pro Quad Xeon 2Ghz/1GB RAM...

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