Stock Radeon 9800 Pro card from a G5--- Will it work in my G4 Quicksilver?

I am thinking about purchasing a stock Radeon 9800 Pro card that came with certain G5 machines and use it in my G4 Quicksilver 867mhz machine. I heard that this works. Is it true? Can I download the drivers from the ATI website? Are there any issues I should be aware of? Any help is greatly appreciated. Thanks.

Hi-
If it is the OEM 9800 Pro, then it is an 8x AGP, backwards compatible to 4x AGP.
Your QS is 4x AGP, and the card should work.
Drivers are here:
http://ati.amd.com/support/drivers/mac/macosx10-4x-3x-radeon.html
The 9800 is a great card!
G4AGP(450)Sawtooth, 2ghz PowerLogix, 2gbRAM, 300gbSATA+160gb HD, ATI Radeon 9800 Mac OS X (10.4.8) Pioneer DVR-109, LaCie 160gb, 23"Cinema Display, Ratoc USB2.0, Nikon Coolscan

Similar Messages

Hello, I purchase a radeon 9800 pro 128mg, I have a mac G4 (Double mirrors) I am replacing the old Radeon 9800 pro 128mb. I am using 10.4 TIGER. I installed the card and I am still getting a black screen. my monitor works on my g4 powerbook desktop Help?

Question #1
Hello, I purchase a Radeon 9800 pro 128mb from ebay. I own a mac G4 ( double mirror doors) I am using tiger10.4 I am replacing my old radeon 9800 pro 128mb with one from ebay. I installed the card properly but I am still getting a black screen. why? Monitor works on my powerbook G4 laptop.
QUESTIN #2
Can I upgrade my hard drive to a 2tb with the proper PCI card and cable ?

#1, tough to tell, is it using the VGA or DVI output?
#2, yes, if you can find a Mac compatible card.

G5 graphics card error: ATI Radeon 9800 pro

Hi there,
The display on my mac has all of sudden gone haywire, there's bars across the entire screen that keep on changing colours/flickering etc, and when I try to drag open windows they become blocks of noisey colour.
So far i've tried resetting PRAM/NVRAM, ran the hardware test which picks up an error on the VRAM which is: 2ATI/1/4:113-A1440; ;16 (I think, it's very difficuilt to read properly), also pulled the graphics card out, given it a bit of a dust etc and put it back in to no avail. I've also tried plugging in another monitor which had the same problem.
I'm assuming my graphics card's fried, but I wanted to check on here to see if anyone had any other ideas. I'm slightly wary about splashing out on a new card when i'm not completely sure it's the card that's the problem, it could be the logic board for all I know. Also not too keen in taking it to the apple shop as it'll be away for up to two weeks, and I really need a working machine just now.
My specs are G5 single 1.8ghz, 512 ram, ATI Radeon 9800 pro card (not the special edition)
Apologies for the long message, and for any spelling mistakes as I can barely see what i'm typing, any advice most appreciated.

I would suggest first blowing compressed air all around the inside including logic board and video card (if you are adept at removing the card and reinstalling the better, careful not braking the AGP clip at the end of the slot that latches into the end of the card). Also keep the can upright at all times. This should help dislodge dust that build up over time and may cause overheating and unusual operation.
Then run Apple Hardware Test disc that came with your computer and run the extended test. It should at least help give you an idea if it's the logic board and/or video card. It's not 100% failsafe, but worth a shot.

Radeon 9800 Pro fan not working

Last Fall I purchased a used Radeon 9800 Pro card to install in my Sawtooth. When I finally got around to flashing the card with Mac-compatible firmware, and then attempted to use the card, I discovered that the fan was not working. As I recall, the card worked briefly under a light load, but could not handle a heavy video load. How likely is it that the card will work properly when I replace the stock fan (with the Vantec all-in-one -- BTW, thanks, japamac, for pointing that fan out as a space-saving alternative to the Zalman VF here:
http://discussions.apple.com/thread.jspa?messageID=7785260 ),
or is it quite possible that the card is fried and won't ever perform adequately again. Is it possible that I will install the new fan, only to learn that the card still buckles under a heavy load?

Hi-
With the 9800 Pro, if the card is run for any amount of time without a fan, the chances are good that the GPU is cooked.
How cooked, will only be shown by putting a fan on the card, and trying it.
but how to know whether this is the case beforehand?
Pull the fan and put a replacement on. That's all you can do.
Get a replacement bury frame fan, and replace the fan in the ATI heatsink.
If it doesn't work with a new fan, sell the set as junk on eBay.
You'll get, at least, the cost of the fan out of it.

ATI Radeon 9800 Pro 128 MB good upgrade from stock?

Hi,
I currently have an ATI Radeon 9650 in my Dual 2.0Ghz PowerMac G5.
I have found a good deal for an ATI Radeon 9800 Pro 128 MB card.
Do you think it is a worthwhile purchase?
Specs on the 9800: http://www.superwarehouse.com/ATIRadeon_9800_Pro_Mac_Edition_128MB_VideoCard/100-435050/ps/333809

No, what you want is this.
http://www.ati.com/products/radeonx800/radeonX800xtme/index.html
buy page is here
http://www.ati.com/buy/pricesmacusa.html
It has a Dual Link and a ADC port on the back, so you can hook up anything from a 30" Apple (Dual Link) to any regular DVI (hooks up to Dual Link) to any legacy ADC (plastic) Apple display.
It's also the fastest current card on the market for your machine.
Check out the ATI upgrade program, you might qualify for a discount.
They send you the new card, you send them the old. But it may be wise to have two video cards, one for backup as they are getting scarce.
3D gaming is always pushing the video card envelope, so it's actually best to get the best right away to prolong your 3D gaming experience.
If you "half-step" it, then when you use a new game, it's crippled.
3D gaming performance is almost entirely video card performance dependent.
See Barefeats comparison here
http://www.barefeats.com/radx800.html
I have the new Rollercoaster Tycoon 3, which 3D animates all the rides. I've created a park that's only 1/4 of the available space and I'm getting dropped frames on my 6800GT and that's more powerful that the 128MB ATI card you mentioned.
Quake 4 runs great on my card, Doom 3 is fine, just a few stutters.
UT2004 runs great. Nanosaur 2 is very smooth.
So spend your money wisely, get the powerful card. Trust me.

Having trouble with my G4 MDD 867MHz DP and ATi Radeon 9800 Pro video card.

I just recently purchased the ATi Radeon 9800 Pro Mac edition card on ebay. I installed the card on my G4 and turned it on thinking everything would work with no problems, but when I turned it on the grey apple screen came up fine and then it changed to a sky-blue screen with nothing on it and remained on that screen. My desktop or any of my apps did not load up at all. I reset the PRAM and the NVRAM as the seller I bought the card from instructed me to and still I get the same result. Is anyone familiar with this problem? I was wondering if my monitor was the problem because I'm using a Dell LCD monitor as the display for right now? I need help! I'm trying to get this up and running so I can start editing. Whatever information anyone can give me will be greatly appreciated!

Sometimes display cards that support multiple displays (or a second display card in the same Mac) can cause the display you are using to be the SECOND display in a multiple-display "extended desktop".
When this happens, the MenuBar and cursor may be drawn perfectly, but be on the "other" screen, and it is very difficult to determine what has happened. \[This problem is sometimes caused by inadvertently leaving an adapter or cable on an unused display port.]
Try moving the mouse many times to the right to see if the cursor suddenly transitions onto your screen, then try the same experiment to the left.

Can I replace an ATI RADEON 9800 PRO-(256MB)-MAC EDITION with Mac ATI Radeon 9800 Pro 128mb Video Card For G4/G5

Hi,
I am trying to help a friend whose graphics card has bust.
The old one was an ATI RADEON 9800 PRO-(256MB)-MAC EDITION.
I've been looking on ebay and it seems a lot cheaper to get a Mac ATI Radeon 9800 Pro 128mb Video Card For G4/G5.
Can I just swap them over? The connectors are not identical according to the photographs.
Thanks.

I'd like to thank everyone for all the really useful information in this thread. It helped me solve a similar problem, which I'll describe here briefly in case it helps someone else.
I have a 2004/5 dual 2 Ghz PowerPC G5 and an Apple Cinema HD display linked, as I later found out, with the now defunct ADC connector. The display suddenly started to look like that scene in The Matrix, when code falls like rain down the screen, and I worked out I needed to replace my Radeon 9800 pro video card (I discovered the board was blue when I removed a thick layer of dust).
I took japamac's excellent advice and bought a Geforce 6800 Ultra from the linked eBay seller in Hong Kong, who delivered it extremely quickly, along with the cables to plug it into the DVD drive power source and a CD with installation instructions. It was only then that I realised the card had two DVI connectors and my display needed ADC (I hadn't understood the difference).
eBay came to the rescue again with a seller who had a secondhand DVI to ADC adapter, which Apple produced when it phased out ADC about six years ago but no longer sells. It has its own power supply and looks like a large version of the Mac laptop power cables - and has added signifcantly to the pile of spaghetti under my desk.
Installing the Geforce 6800 Ultra is fiddly, and a bit scary if you're not used to delving into the insides of a Mac, but the instructions were clear and illustrated with useful photos. The video cable has four connectors. Two fit into the end of the card, the other two (linked in a Y shape) form a bridge between the DVD/superdrive and its power cable. You have to remove the DVD drive, unplug it, and then plug one of the two Y video card connectors into the DVD power cable and the other into the DVD drive itself. Then you replace the DVD drive, plug the two remaining cable connectors to the video card and ease it into the old card's AGP slot.
Finally, with the G5 reassembled, plug the adapter's DVI connection into the back of the card, plug the Cinema Display ADC cable into the adapter block, plug the adapter's USB cable into the G5 (this enables the the USB ports on the back of the display to work), and power up.
At the time of writing, the display has been up and running for a couple of hours and all seems fine.
Thanks again everyone for all your help and advice. If it wasn't for communities like this, it would be virtually impossible to solve problems with old but still serviceable Macs.

Radeon 9800 Pro died, need a new card

Like many of the users here, my Radeon 9800 pro is displaying the verticle lines of death. Crappy thing is this is the second card I've been through in three years, and my warranty is now expired. I need to get a new card but am not sure which will be compatible with my first generation dual 2.0ghz G5. Is the 9600 comprable to the 9800? Will the X800 work in my machine. Sorry, I really know nothing about these things so figured better to ask on these forums. I'm certainly going to stay away from another 9800 though.
Thanks for the help

AMD bought ATI, so their web site is in chaos, as well as their possible future with Apple.
Supposely ATI is going to make combined CPU and GPU's on the same board.
The fastest AGP card still available in great quantity before the company was bought was the X800 XT Mac edition, with a ADC and a Dual Link DVI port. (can use regular DVI as well)
My advice is to get this card, the DP PowerMac G5 is still a great workhorse, sold a lot of units when introduced and will last considerably longer provided it's not crippled by a poor video card. You should be able to find this card online in many locations or calling ATI directly.
I got myself a 9800, a X850 XT and a Nvidia 6800 GT (the best, quietest, coolest, none available new unfortunatly) just so I can prolong the life of this Dual PPC G5 machine.
Also if you plan to get more hard drives, be aware that Western Digital (especially) has a newer SATA interface that our machines native SATA can't handle very well. You'll need a Firmtec bootable SATA PCI card to bypass the native SATA.
So if your hard drive dies, you might be up the creek, booting off a external drive.
Remember to update your driver software occassionaly, backup data first of course.

Does 10.5.6 Support Dual displays for Radeon 9800 Pro Mac Edition cards?

Does 10.5.6 Support Dual displays for Radeon 9800 Pro Mac Edition cards?
And is there driver updates for anyone using the all-in-ones HP printers...has anyone been able to use their scanners since the update? and has the dual screen support been added to avoid the blue screen on startup?

The ATI Radeon 9600 PC/Mac edition 256 MB should work in the MDD G4. It has two DVI ports (one is dual-link and can support a 30" display). You will need adapters for ADC displays.

ATI/Radeon 9800 Pro 128 AGP 4x/2x in Gigabit Ethernet dual 450 PMac G4

Hi,
This is my first time posting to these discussion group... I've been going through related threads and have not found an answer to my problem...
I have a Gigabit Ethernet dual 450 G4. Awhile ago I upgraded the processor to a Sonnet 1.8ghz so I could run Leopard.
I just bough the ATI/Radeon 9800 Pro 128 AGP 4x/2x video card. I researched around and that seemed to be a card that would work in my machine. I even read a review on Amazon where someone had also upgraded to the 1.8 processor used this card with no issues.
I do have an older monitor - Apple Studio Display CRT with the ADC connector. So I also bought the Apple DVI to ADC adapter kit.
I installed the card and do not get any picture at all - I believe I have installed everything correctly. I'm pretty sure I can hear the fan on the video card in the machine. The monitor is getting power from the adapter since the button lights up when I press it - but it does not stay lit -- the monitor never turns on. Using my old graphics card the monitor makes a little "beep" when it turns on.
In reading the other topics I am wondering if it might be a power issue? According to Other World Computing's profile my machine has a max of 220 watts. Although they suggest this video card as one the will work in my machine.
I have disabled the hard drive that came with the machine (too small) and am using two Maxtor hard drives that I added - one ATA (120gb) and one SATA (500gb) that is connected to an SATA pci card. I also have two additional pci cards with usb 2.0/firewire ports.
In looking at the topics here I came across the link about taping the 3 and 11 pins on the video card. Even though the card I have is 4x/2x not 8x I thought I'd give it a shot. That did not work either.
Any help you can give would be greatly appreciated.

I don't wish to sound redundant here, but I've been reviewing the vendor's page:
It's OK- I don't mind beating this dead horse....
The maker says such to protect themselves from possible claims that may arise due to over loaded systems and power problems when their card is installed in said system.
Of course, 300w would be nice, but they didn't even specify the PSU rating a couple years ago. The Sawtooth, with it's 237w PSU, used to be listed as a compatible machine for the 9800...... They just didn't consider how far a Sawtooth might be modded.
Within reason, the early G4's (Sawtooths) are capable of using the Radeon 9800 Pro. The GE has the same 338w PSU as the DA (they are interchangeable), so there is plenty of power for the 9800.
One thing to remember, the requirements of the ADC port of the AGP slot are removed by using a non ADC card. This really changes the calculations of the power available.
It's kinda' a long post, but, if you care to get ALL the details, check the following:
http://discussions.apple.com/thread.jspa?messageID=7065653&#7065653
I think you'll be satisfied with the explanation.......
Which leaves your second, and very appropriate, point.
The main enemy of all, though, isn't power. Heat is the biggest concern.
Reducing heat/increasing cooling by using a third party fan on the 9800 is highly recommended. The 9800 is a hot card, and the stock fan is prone to early failure.
Adding additional cooling to remove the extra heat produced by the 9800, by using an exausting PCI fan, will also help the PSU provide adequate voltage to the system, by reducing the amount of hot air moving out of the PSU.
Super heated air moving through the PSU reduces the cooling ability of the PSU. A hot PSU doesn't produce reliable power.
So, add the 9800, add some cooling, and enjoy!

Ati Radeon 9800 Pro won't start up mac!

I just got this Ati Radeon 9800 Pro 256MB AGP from ebay and installed it promptly but my mac just won't start up!
I tried placing back my existing nvidia card and it booted up fine. Am i being ripped off with a PC version or something? I noticed there's a extra piece of chip to insert from my old nvdia card but not the new ati one.
But i checked on the net and found that the ati radeon 9800 mac cards also do not have that extra chip.
Here's a URL of the card i bought. (http://i4.ebayimg.com/01/i/000/da/aa/1988_1.JPG)
Any idea or advice guys? Thanks in advance.

Hi-
The image is just a stock image from ATI, of a 9800 Pro- which one is impossible to tell.
Since you are calling the card a 256mb version, the card is a PC card (unless it,s blue). It was advertised as a Mac card? If so, it has been flashed. BUT, if it is an 8x AGP card, it needs pins #3 and #11 taped to work in your 4x AGP QS. See this article.
Do you have the eBay link to the card that you bought (the listing)?

Radeon 9800 Pro (128MB) on G4 with lots of artifacts

Hi there,
I recently bought a radeon 9800 pro (mac version) over ebay. I put it into a d1ghz (quicksilver with 1.5GB of Ram. Everything seems to work fine, however, the screen flickers ever so slightly after the ripple effect in the dashboard. Yet this is not really what bugs me: Any game (and probably other applications as well) which uses Core Image produces huge artifacts. There are just random screen-filling bits sticking out the ground...
How do I get rid of this? I already checked all the connections, ran software update, downloaded the most recent drivers and tried downclocking the graphics card.... (I also think that I cleared NV- and PRAM, but I am not sure... )
What am I forgetting?
Thanks already, dl33

Hi. I had the same problem, but it was a 500 mhz Sawtooth. I was told it was either a power issue or a heat issue. So I upgraded the power supply from 237 watts to 400 watts. It seemed to help, but it started doing the same thing. After wasting a lot of time and money with power supplies and soldering and adding fans, etc, I looked at the fan on the card. Like you, I bought mine used. The guy said it worked flawlessly. When I first got it and experienced the problems, I checked the fan. It wasn't the stock fan, was a unit from Arctic Cooling. The fan was spinning, but it said that air should be blown out the exhaust, and I felt none. Upon closer inspection it turned out that the fan was defective. It was constantly speeding up/slowing down, and it was supposed to be a single speed fan...not good. But by the time I figured that out, the card had been fried. I got a new unit from Arctic Cooling, but the card no longer works.
Might want to check the fan and make sure it's spinning. Your power supply should be sufficient since I believe the QS's had 344 watt PSU's.
One thing I forgot to mention was that underclocking it usually helped. I had to underclock it a good amount, though. I believe it was around 20%.
Hope this helps.
Matt

Radeon 9800 pro 256mb hanging on blue screen

I'm deep in the waters of frustration right now, and am hoping someone here might have the answer.
About 3 months ago I was looking for a video card for me to run motion. I saw the 9800 mac special edition with 128mb video ram had rave reviews. At that time ATI was not making them. So I turned to eBay...
I purchased a card that was advertised as a Mac 9800 pro special editing 128mb. I later found out it was a flashed pc card. The ebay seller told me the card worked fine on all his mac's that he tested it on.
The problem I was having was the machine boots up, I see the grey screen with the Apple logo and spinning wheel. I see the blue screen where normally I see the login progress bar loading the OS. But with this card I only see the blue screen. I hear the hard drive churning, so I am assuming it is still loading the OS, but I cannot see anything. I can reboot in safe mode and the video card works fine.
Well... I assumed it was the fault of the card and that it was flashed. I returned the card to the ebay seller, who sent me another one, same results with that one. I returned the card to the seller and he refunded my money.
I put the money toward the just released Radeon 9800 Pro Mac Edition 256mb card. I just got it a couple days ago and am experiencing the same problems. I have tried everything... everything I know and still can't get the card to work? Here is a list of what I have done:
With the flashed card:
1. Shut off computer and unplugged it. Removed OEM video card and installed ATI 9800 card. Plugged the power supply cable for the card into the computer power supply cable and hard drive.
Problem Occurs: When starting up, the grey screen comes up with the Apple on it, then the screen turns blue, where I typically would see the progress bar of the system loaded up before the user login screen. I only see a blue screen at this point but can hear the hard drive working for about a min.
2. Restarted the computer in safe mode.
3. Logged in as Admin user and opened the ATI preference pane to verify it sees the card.
When the ATI preference pane was loaded the following error message occured:
A startup problem has occured.
Cannot connect to ATI TVOut Kernal Extension. Some features are not available.
Clicked OK and the ATI preference pane appears.
4. Close the preference pane and reinstalled ATI Displays 4.5.6. Restarted computer.
Problem Occurs
5. Restarted computer holding down AppleOption+PR to clear PRAM. Cleared the PRAM 4 times in a row, by allowing the chime to happen 4 times.
Problem Occurs
6. Shut computer down. Disconnected the DVI plug for the cinema display and connected a VGA CRT monitor. Started computer.
Problem Occurs
7. Shut computer down, disconnected the VGA CRT monitor. Reconnected DVI plug and restarted computer.
Problem Occurs
8. Started the computer in safe mode. Logged into admin account. Opened the ATI Preference pane.
When the ATI preference pane was loaded the following error message occured:
A startup problem has occured.
Cannot connect to ATI TVOut Kernal Extension. Some features are not available.
Closed preference pane.
Went to ATI site and downloaded:
aug2005-radeo-universal-rom-update.dmg
Ran the updater.
Restarted computer.
Problem Occurs.
9. Restarted the computer in safe mode. Changed the login preference pannel to automatically log into the administrator account. Restarted computer, waited for the blue screen, then walked away for about 2 hours with the computer on blue screen, hoping the system was loading or doing something.
Problem Occurs.
10. Put in the TechTools Pro CD, hoping to run some tests on the video card from the cd. When booting from the CD OS...
Problem Occurs.
11. Enabled Root user. Logged in as root and installed ATI Displays 4.5.6 from there. Restarted computer.
Problem Occurs.
12. Shut down computer and installed old video card.
13. On an internal hard drive in the computer. Wiped the drive and formatted it. Installed 10.4.1 on the drive. booted up into the drive, installed ATI drivers, shut down computer, installed 9800 pro video card, booted up.
Problem Occurs.
With the new 9800 for Mac ATI card with 256mb:
With original card, install drivers, repairpermissions, shut down, install new card
Set to restart in single user, give 5 min to see if ATI monitor startup item in user starteputems loads
Hooked VGA & DVIt in together, both showed blue screen
Reset NVRAM via open firmware
Reset cuda button
Take battery out, wait at least 10 min, re-install new battery, press cuda button
Reinstall ATI update 4.5.6
Reset nvram from open firmware
In ATI control panel, selected 'Force Single Display Operation'
Change display scaling to 50%
Download latest Mac OS update from apple & reinstall
Help?

I get dizzy just thinking about it.
I have tried installed a brand new OS, 3 different times on a different Hard Drive, still the card doesn't work.
I had one person suggest that it may be the card is not communicating with the OS Window Drawing module? (excuse my ignorance of what that is really called. I just know there is some program, possibly in the kernel, that is responsible for drawing out the OS windows.)
How can we rule out that it is a bad AGP slot?
•The slot works fine with my 9000.
•It works in safe mode with the 9800.
•I have installed a brand new OS, three different times, still doesn't work.
•I have used Apple Hardware test to test my hardware, the AGP slot didn't report any problems.
I am assuming that the AGP slot is working. Although I worry about it a bit, because by now I have swapped cards in it about 50 times in my troubleshooting.
Here is a link to a complete list of everything I have tried:
http://www.macosx.com/help/qview.php?questionid=19554#54138

S-Video not working on ATI Radeon 9800 Pro????

I've had this ATI Radeon 9800 Pro in my MDD dual 1.25 G4 for a little while with two VGA monitors. I recently got rid of the secondary monitor and moved a 27" flat screen tube TV next to the computer. As I always do, I've got to start tinkering. I remembered that my Radeon has both VGA, DVI, and an S-Video outputs. I simply ran an S-Video from the card to the TV. I can't seem to get it to work. I had never used the ATI control panels so I went ahead and downloaded and installed it. It won't "detect" the TV in the Mac2TV control. What the heck am I doing wrong???? I emailed ATI and they just sent me a form reply to a dead link saying that my system is unstable. UGH!
Any tips would be great.
Thanks much,
Robert

Well, I figured out that if I reboot and only have the s-video attached and no monitors to the VGA or DVI it will work. It dedicates the TV as the primary screen. However, not the best picture. I can't find any information if both the s-video and VGA or DVI can operate at the same time. I'm also doing a little more research with ATI to see if they actually have a true component output from either the VGA or DVI. I had bought a DVI to what I thought was supposed to be component but it was actually RGB component and just gave a distorted image. If I can get that to work, I think it would be a better image along with being able to run both the monitor and the TV as the secondary.
Robert

[Athlon64] MSI K8T NEO-V : incompatibility with ATI RADEON 9800 PRO

Hi,
I read all the subjets on this forum about Radeon problems with MSI K8T NEO motherboard. Most of the peple can't use their graphic card in all situations.
My PC is :
-MSI K8T NEO-V
-AMD-64 3200
-Power : 400W
-ATI RADEON 9800 PRO
-1 Go DDRAM (2x512 in single channel)
-Hercules Digifires 7.1
I bought a new MSI K8T NEO-V with AMD 64.
The problem is that I can't use the computer in the games with AGP 8X even if I try to enable-disable all the options possibles in BIOS and Windows (fast write ...) : The computer freeze (screen disapear as if there was no video signal), reboot or return to Windows disabling the accelerated mode.
But in AGP 4X, all the game run without problem with all setups of BIOS !!!
I tried all the drivers (the new and the old drivers). Even if all are updated, it freeze.
There are no BIOS update for my motherboard. I saw that some people had BIOS update for compatibility with some Radeon cards ...
So, I don't know how to repair the problem because AGP 8X is AGP 8X and not 4X, and my Radeon run fine on other computer, and nothing say that Radeon 9800 pro don't run on this motherboard.
Does someone have the solution to make it work ? Does a new BIOS or driver update exist somewhere for Radeon cards ?

What Bas said about 30+ amps on the 12v rail does have merit. Even if you don't use it now there may come a time when you want to upgrade the system and certainly you won't want to buy yet another PSU then. A High end vid card now takes almost as much as the CPU to operate. Now days the 12v rail is the most important. Past systems regulated everything off the 5v railk and 12v was used mostly for powering drive motors. Now though the MB's use the 12v line to regulate all the voltages for the CPU, Chipset and other features as does the Vid cards. 3.3 volt lines are used for memory so we hardly use any 5v nowdays.
You have an older viod card and that does not eat much 12v but if you upgrade the most likely peice will be the vid card. You could go through this whole thing all over again if you are not careful to plan for that now with a new PSU purchase.
If the computer shop gives you a bunch of bull about power needs havbe them stop by the forum and we can help set them straight on this. There is more than enough data from MSI and historical data here that suggests that 16a on the 12v rail is certainly not enough. Hey I am not trying to sell you anything. I am just trying to help you get it right. The computer shop is the one trying to sell you something we just feel they are selling the wrong junk.

Stock Radeon 9800 Pro card from a G5--- Will it work in my G4 Quicksilver?

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