Updating firmware for ATI Radeon X1900 Graphics Card

I haven't upgraded the firmware of the ATI Radeon X1900 graphics card since I got the computer. I downloaded what is supposedly a utility app. that does this upgrade. I'm just not sure if this is the right utility, right upgrade, or if I'm taking some kind of weird risk.

Any suggestions or warnings would be most appreciated.

Thank you, Ben

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Computer Info: MacPro1,1

X x @.66 GHz Dual-Core Intel Xeon / 10 GB 667 MHz DDR2 FB-DIMM
Total Number of Cores: 2
L2 Cache (per processor): 4 MB
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Graphics Card Info:

ATI Radeon X1900 XT:

Chipset Model: ATY,RadeonX1900
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: ATI (0x1002)
Device ID: 0x7249
Revision ID: 0x0000
ROM Revision: 113-A52027-140
EFI Driver Version: 01.00.140

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ATI Radeon X1900 XT Graphics Card Update Utility info upon opening utility:


The ATI Radeon X1900 XT Graphics Card Update will update the firmware on all of the ATI Radeon X1900 XT graphics cards in this Mac Pro. Do not disturb the Mac Pro during the update. Once complete a dialog box will show that the ATI Radeon X1900 XT firmware was successfully updated. At that time the Mac Pro will need to be restarted.

To update the firmware on the ATI Radeon X1900 XT:

1. Save all open documents and quit all other open applications.
2. Click Update in the ATI Radeon X1900 XT Graphics Card Update window. You will be asked to authenticate.
3. Wait for all of the ATI Radeon X1900 XT graphics cards to be updated.

Do not disturb the Mac Pro while the firmware update is in progress.

When the update is complete a dialog box will show that the firmware was successfully updated.

4. Click Restart. The Mac Pro will restart and the ATI Radeon X1900 XT firmware will be up-to-date.