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Power-Mac-G4.com we feature custom upgraded used Mac G4
systems or the components and expertise for you to
upgrade yours. Buy used Macs here. Looking for a fast
DUAL BOOT used MAC G4 to work in both 9 & X? Our
refurbished custom upgraded PowerMac G4's. Need lots of
RAM, each unit can hold up to 2GB (1-1/2 on DA & QS)
and when you order it, we match and test the chips! Need
large hard drives, how about a pair of 80GB 7200 rpm or
our new 120GB Digital Drive? SuperDrive? How about a 22X
DVD Dual Layer Burner! Let us build your G4 to order!
We even have the stuff in stock if you want to do it
yourself and are happy to help. Call our toll free order
line 1-877-639-1543 10-3 CT. Need tech support? Call our
new dedicated tech line at 1-405-601-5288 9-6 CT.
your replacement Mac G4 power supplies here. See the G4
power supply category in the online store. Upgrade your
Mac OS. We have OS updates in stock,
It is just
me and Cheryn these days. We are usually always a bit
behind. Thank you for your patience and continued
patronage. Best times to reach us are between 10 am to 3
pm Central Time. We never catch up on messages so if you
don't reach us please try again later. I daily check and
answer all emails. Use the Contact
links for the email address. Thanks! Bob.
now have lower prices on all PowerBook and iBook
to learn about Power Mac G4 Power Supply and purchase
- this links directly into our online store with links
for all the goodies you will need to upgrade your
Priced G4 Mac!
Macintosh G4 450*mhz
RAM, 40GB HD, DVD-CD
OSX or OS9. These Upgraded Sawtooth or Gigabit
Ethernet PowerMac G4/450's come nicely
configured. DVD-CD Player. We put in a refurb 40
GB Drive (Fast New Solid State Drives available
call). We thoroughly clean and rigorously test
each unit. Video Card: 16 MB ATI RAGE 128 Pro
AGP. Built in 10/100 Ethernet, NO MODEM - add a
built in 56K Modem +$10. It has a spot for the
optional Airport card. Install more ram $49.77
for new 512MB SDRAM. These systems come with two
each built in Firewire and USB ports. VGA out.
Service manual (.pdf) on system. Keyboard and
mouse available extra (see the input section).
OSX Super Sink DVD chock full of freeware and
shareware. Mac OS10.4.11 and 9.2.2 dual
bootable. Weight: 30 lbs. Dimensions:
17"Hx8.9"Wx18.4"D. Has HD15 (PC Style) Video
out. Our $279.77 includes your domestic
shipping. We will install a NEW Digital 120GB
Hard Drive in place of the refurb 40 for +$60,
New SuperDrive in place of DVD +$60 Call for
upgrades. Sell us your old unit. Call or email
for custom configurations.
State Drives for Your G4!
Cheryn tells me
we are having trouble finding 80 or 120GB refurbished
hard drives for our older Mac customers. There haven't
been new ones available for years. We know you depend on
us to help keep your old gear running efficiently. These
brand new digital solid state drives have no moving parts
making them not only faster but more reliable. We still
think you should keep your system backed up but running
from these super fast brand new drives only make sense.
We haven't carried SSD drives much before but we think
now that the prices are more affordable now is the time.
We found the right kind of adapter that allows you to
configure it for Master, Slave or Cable Select depending
on your needs. That makes these more compatible and
easily configurable with an included jumper. We can set
these up for your system or you can use copy software to
move your old data. Let us know how we can help speed up
your G4 system. I tested these on our servers so you know
they are fast and dependable.
up your G4 Faster Data Access No
Headgap tested and approved! Improve
Performance! Now more affordable you can move up
to the latest technology on your G4 and still
run OSX or OS9.2.2 and boot from either. This
2.5" SSD comes with an adapter that features the
ability to be set to Master, Slave or Cable
Select for maximum compatibility. The 120GB Size
is the largest size most G4 can run. FASTER
DATA ACCESS! This speeds up almost
everything you do on your Mac! More reliable
than the old conventional drives, no moving
parts, no noise. We include velcro so it is
simple to mount anywhere that is convenient.
WORKS in ALL G4 Macs and connect to a standard
IDE connector. We preformat these and can
preinstall call for custom configuration.
Reg.$119.77, SPECIAL INTRODUCTORY PRICE
$99.77 includes domestic shipping. See
the G4 Category in the online store.
9 or X
that old dying 2.5" IDE Drive with Solid
moving parts, no noise, FAST
NEW! Operator Headgap tested and approved.
Improve Performance! Now more affordable you can
move up to the latest technology on your iBook
or PowerBook and still run OSX or OS9.2.2 and
boot from either. We build this 120 GB 2.5" SSD,
it fits perfectly. This speeds up almost
everything you do on your Mac! More reliable
than the old conventional drives, no moving
parts, no noise. WORKS in ALL iBook or PowerBook
Macs and Early Mac Mini's and connect to the
standard IDE connector. We preformat these and
can preinstall call for custom configuration.
Regularly $119.77 OUR $99.77 introductory price
includes domestic shipping.
See the INTDRIVESIDE
SUPER Kitchen Sink Thumb Drive
NOW A 16 GB
USB Thumb Drive! 2021 Versions IN
the latest updates. I added all the goodies you
asked for. Now you can simply load them from the thumb
drive or in some cases download them from the links.
Categorized, Indexed and Described and most all include
links to the download site and the authors web site so
you can read more about them. ORDER
Software section of the online store. If you haven't
bought one in a while this is a good time to update. Have
an iPod, iPad, or iPhone? We now have a directory that
has all the utilities in one directory. We also created a
Virus,Trojan, Worm directory to make it easier for you to
feel safe and even added some Adware removal tools.
Mojave, Catalina, and Big Sur compatible software now
DO OPEN THE INDEX FILES THAT APPEAR AT THE TOP OF EACH
FOLDERS DIRECTORY. I have added a MORE THAN A FEW
items that there is not room for some on the drive. In
this case I linked the direct download link and noted in
the description. THERE ARE SOME REAL GEMS listed
in the directories for download. Take a look! With the
added space I am now including more versions for more OS
separated the Apple Updates on Thumb Drives to allow you
to order only the updates you need. While the updates are
free from Apple some are quite large and take a long time
to download. Having them on disk saves you time
especially if you have more than one Mac. There will
likely still be some hardware specific updates you will
need to download from Apple to complete your
installation. Mac OS 11 Big Sur Compatibility
UPDATES THUMB DRIVES! These
16 GB Thumb Drives (various colors) allow you to update
to the latest version of the OSX version you have
installed. We are now selling them separately. The 10.13
High Sierra and 10..14 Mojave required a larger 32 GB
Thumb Drive for enough space.
you want to buy a complete set call and speak to Cheryn
and she will make you a group deal price. From now on
though we will be offering each disk separately at a good
price and of course our pricing always includes
4th Qtr 2021
2021 Edition OSX Thumb
USB 16 GB Thumb Drive (assorted colors no
choice) contains the very best freeware and
shareware. Each section is categorized, indexed
and includes a nice description for each program
with links to the source and author. Chock full
of the best shareware and freeware utilities,
games, Internet goodies, music, graphics and
multimedia, emulators, diagnostics, hard to find
drivers, and more, all for OSX (everthing but
the Kitchen Sink). I carry this one in my
toolbox. This Mac software collection makes it
easy to set up your new system or simply update
your old one. Quarterly we review all programs
and update them. REQUIRES: OSX 10.2 through 11
Big Sur, available USB Port $12.99
including domestic shipping.
Updates DVD & Thumb Drives are now
separated and available!
or 9 2021
(1 CD) - $7.99
Thumb Drive $12.99
- 10.11 Thumb Drive $12.99
Thumb Drive $12.99
32GB Thumb Drive $19.99
32GB Thumb Drive $19.99
Thumb Drive $12.99
ALL KNEW THIS DAY WOULD COME, BUT WE FOUND A
your G4, G5 or MacPro Tower DVD Drive Today! These are
of you know that the day would come when no more IDE DVD
drives would be available. We fretted over this but did
manage to find a good adapter allowing us to use the SATA
versions of the drives. We found a FASTER Optiarc
SuperDrive and bought a large quantity. They are even
faster in the DVD Burning at 24X and CD Burning
department at 48X. We are offering a special introductory
Pictured Instructions Included
DVD's and CD's!
in OS9.1 up through
model supports DVD burns at up to 24X! Dual
layer support. These make great replacements for
Macintosh G4 Towers Yikes through Mirror Doors,
G5 Towers, G4 iMacs, and even eMacs! At $64.77
you can't go wrong. We include pictured
instructions, Toast Lite CD burning software and
patches to make it OS9 and X compatible. Close
to twice the capacity (Dual Layer Capable)!
Apple Bootable allows you to boot from emergency
disks and any Apple install disks etc. Only
Headgap offers compatibility patches and
complete pictured instructions. Toast Lite
Burning Software, You must supply your own
version of Toast for Lion and above. Our
includes domestic shipping. See the DVD,CD,CDRW
Bright and Crisp!
that old CRT. Perfect Companion to your Older
FOR OLDER MACS! Headgap approved. Works with
earlier Macs (may require adapter). Replace your
old and dim CRT and use only 10% of the power.
These units have the 4x3 ratio and works well
with earlier Macs without stretching out the
pixels and are easily adapted even to the
earlier Macs. With a 17-inch diagonal TFT Active
Matrix LCD display, this super slim monitor
makes a great addition to any desktop. Enjoy
rich, detailed text and graphics with a 1280 x
1024 resolution. Its 300 cd/m2 brightness and
1000:1 contrast ratio provides excellent color
and enhanced brightness, combined with the wide
viewing angle makes every seat the best one in
the house. Whether you are looking to add a
second (or third) monitor, or simply replace an
old CRT monitor, this Namebrand 17-inch LCD
monitor provides top of the line performance and
reliability with out top of the line prices. VGA
Connectible (3 row 15 pin) works with G4 and up
Macs - adapters for earlier or laptop Macs in
stock. Item image is representative only, item
may vary. Our $99.77 price includes domestic
category. Adapters for earlier Macs in the same
Bright and Crisp!
Brand - Perfect Companion to your
approved factory refurb. Increase your
productivity with this 22-inch Name Brand
Widescreen LCD monitor! The bright 22-inch
Widescreen LCD features a 1680x1050 16:10
widescreen resolution that makes working on
multiple documents and applications a breeze! A
high 1000:1 contrast ratio and 250 cd/m2
brightness brings out the crisp detail in
graphics, photos, and videos. Also, its fast 5
ms response time is great for gaming! 90 day
direct warranty. Connectors: 15-pin VGA.
Dimensions: 20.7 x 17.2 x 8.1-inches (HxWxD,
approx.). This unit works fine even on a stock
G4 16MB Graphics Card in OS9 or X. Item image is
representative only, item may vary. Our $199.77
price includes domestic shipping.
OS8 or 9
REDUCED! Original Factory Bootable CD only. A
must have for your 8.1 to 9.2.2 PowerMac System!
Take care of that flashing question mark. Norton
Disk Doctor fixes it now and keeps it fixed.
Norton SystemWorks for Macintosh® is
the smartest way to keep your Mac® at its
best. This essential suite features Symantec's
best-selling Macintosh software products plus
two other top utilities. Norton Utilities
6.0 helps you repair and optimize disks, recover
lost data, and prevent future problems. Norton
AntiVirus 7.0 finds and repairs infected
files to keep your data safe and secure.
Dantz Retrospect® Express Backup
copies files quickly and easily to a wide range
of removable media. Buy Norton SystemWorks today
to protect your Macintosh from viruses and keep
it running at peak performance! System
Requirements: PowerPC-based Macintosh®
system, Mac® OS 8.1 through OS9.2.2 (system
must be able to boot from OS9.0 (NOT FOR OSX!
DO NOT USE WITH OSX), 24 MB of RAM, 20 MB
hard disk space for Norton AntiVirus and
Norton Utilities, 30 MB hard disk space
for Dantz Retrospect® Express, CD-ROM
drive, & Internet connection required for
LiveUpdate. Opened software is not
returnable. INCLUDES CD-ROM ONLY no box. New
Lower Price Was $9.99 NOW $7.99 Shipped.
SOFTWARE section of the store.
OR give us a call on the toll free order line
877-639-1543 9-6 CST, M-F
NEW FAX 405-445-0796. Remember our bottom line
price includes shipping! We stand behind the products
we sell with a 30
less shipping and handling (90
days on systems).
Prices subject to change with out notice. Questions? Try
hardware help? Read Bob's Mac Tech
use reconditioned equipment?
large orders have to be signed for. Operator Headgap
Systems, Inc.,7308 S. Klein. OKC, OK 73139
in December 2012 we relocated. Our toll free number
is the same 1-877-639-1543. Our direct phone lines is
1-405-601-5288 use this line if you are in Canada. Tech
Support is 1-405-601-5288. Our new fax line
is1-405-445-0796. Please make a note of these changes.
Our new address is Operator Headgap Systems, Inc., 7308
S. Klein, OKC, OKLA. 73139. Thank you.
We now stock a select few Flat Panel LCD's. These are
tested on Macs and we will not sell any of the dark slow
and fuzzy junk you sometimes find at bargain basement
prices. These are new units (unless noted) and are bright
and sharp. We don't carry much in CRT monitors. They are
heavy to ship and the larger ones are subject to damage
in shipping. We recommend you use our low cost Mac to
PC monitor adapter (see our monitor section) ).
Easily adapt most any PC monitor to your older beige
Macintosh including flat panels LCD's. Compare at $24.99
to $44.99 our Special Price $14.99 includes domestic
Blue & White, G4 and above take PC HD15 connections
straight up! No adapter needed for those models. We also
carry video card upgrades for many models that really
improve your systems performance. Our adapters even allow
small LCD use with older Mac systems.
Check often we get a few StyleWriter's in that work with
your older Mac. Use USB Printers when you can but check
to make sure they support your OS version and buy the
cables from us. No USB? OS8.6-9.2 and a card will
put you PCI bus PowerMac owners in business. USB Printers
that work in 9 are harder to find. We try to stock a few
USB refurbed units that work in 9. See the printer
section of the store. See my tech tips printer section
for more tips: http://resale.headgap.com/bobsmactips.html#print
have internal modems for many different models. We also
have a few used serial modems. See the modem section of
our online store. Zoom
makes a 56K USB Modem
Model 3095, that will work with your system. It works
with older classic OSes from 9.2 (and probably 8.6 if you
manually install the CCL) up to 10.6 although you will
have to likely manually install some components.
REPAIR & UPGRADES:
to repair or update your old (out of warranty) Mac and
don't know how? Send us your old system and let us
install any of the items we sell. Add processor upgrades,
optimize your existing processor, more ram, larger
drives, or perhaps an internal burner. We also
professionally install all Mac OS versions including OSX
and update it to the latest versions from Apple. We also
test, and thoroughly clean inside and out. Give us a call
with your particulars.
repair out of warranty laptops at fair prices, laptop
expert technicians on staff.
also provide low level hard drive recovery at
reasonable rates. Call for details.
your old data moved to a new drive or system? Let us
do that for you.
your old floppies, Zips, Syquests, etc. moved to CD or
DVD - give us a call.
HEADGAP REFURBISHED COMPUTERS:
What makes us different is we not only clean and
thoroughly test each system, we many times replace the
hard drives, optical drives, memory with upgraded
replacements. Operator Headgap Systems purchases good
used Mac systems in quantity. Our professional staff of
refurbishers clean, perform over 50 diagnostic tests
including DOD level drive formatting. All our systems
come smartly configured and ready to use. Our refurbished
used Mac Computers come with the required cables and
cords (except keyboards unless noted, use your old one or
available extra). We even include a free mouse pad. We
offer a quality refurbished product at the lowest
possible price and stand behind our systems with a
use reconditioned equipment? Read more.
When you select any of our systems you get not only the
basic system software preinstalled. We update the OS
software to the latest version. We also install many open
source, freeware and shareware programs and configure
them for use on your system. For example LibreOffice is
an Open Source Clone of Office for the Mac. It allows you
to open and save Word, PowerPoint, Excel file in their
formats making it easy to exchange your work with other
Office users. We also install Flip4Mac and Perian which
extends Quicktime allowing you to playback many types of
multimedia files like .divx and .wmv in a larger variety
of formats. Firefox and TenFour Fox gives you an
additional browser choice over Apple's Safari and much,
much more. On older PPC equipped systems including G4 and
G5 models we install an update Flash Plugin allowing
better YouTube playback. Plus we always include the OSX
Kitchen Sink that is chock full of other programs you may
find useful and wish to add for use with your new
OR SELL YOUR OLD Apple Macintosh Computer
we pay wholesale prices. Many times when you are ready to
upgrade your old used Mac system may not be worth much,
especially to a dealer who is used to buying in quantity
at wholesale prices and has the units shipped in bulk
truck freight. Boxing and shipping your old system costs
a few dollars. Here lately we have been having more
trouble locating older systems people are still buying.
We will begin offering trade-ins or to buy outright
certain older systems. The following are on the list:
used PowerMac G4, QuickSilver G4, G3 Desktops, PowerMac
7300, Quadra or Centris 650, 800, 840, and Mac IICI's and
SI's. The units need to be cosmetically in good condition
and working (at least chiming). Trade in value will vary
from the top wholesale price for extra clean, that exceed
stock configurations and down for less that prime units.
We are also purchasing good used Apple Desktop Bus Mouse
II ADB Mice, working StyleWriters, and SCSI & USB Zip
Drives. WE BUY USED SONNET G4 AGP PROCESSORS.
are also purchasing good used Apple Desktop Bus Mouse II
or use the email
you have Mac items and hate to throw them away but figure
they have little or no value in todays market, rather
than dumping them to a landfill, write us with a list.
or the email.
Any of the items we can use we will pay your shipping.
You can rest assured that we will put your old Mac items
back into circulation either using them to repair old
equipment or including the items with systems. All hard
drives are thoroughly DOD level formatted so have no fear
about any data left on a hard drive. We properly recycle
any items we end up having to discard. We do not accept
CRT type monitors or LaserWriters (too heavy and little
buy quantities of Mac systems & components.
or use the email
OSX Install Notes
Beige G3 Systems
We take School PO's and offer quantity discounts! Fax
your P.O. to 405-445-0796
know that many of you have come to depend on us
for your Macintosh battery needs. Consider us
your source for superior Mac batteries. We are
distributors for the premium long lasting 3.6V
1/2AA Lithium Battery 1200mAh for the Macintosh!
ULTRALIFE's are now in stock and shipping!
NOBODY SELLS FRESHER MAC BATTERIES THAN WE DO.
Manufacture date stamped right on the battery.
We purchase these batteries factory fresh and
have them airfreighted in quantity. Our low
$7.88 price includes domestic shipping. Call
for quantity discounts (10 or more). Select the
category when you arrive and place your order
securely. We also stock factory fresh 4.5V
alkaline batteries that work in many Performa's
and older Macs.
have iMacG5, Mac Mini, G5 Tower, Mac Pro,
prices on popular iBook, PowerBook, MacBook,
MacBook Pro batteries!
provide the most secure environment for safe online
purchases, we have added a simple additional step to our
ordering procedures. In order to complete your credit
card transactions, you will need to enter your credit
card number, expiration date and CVV2, CVC2 or CID code
on our secure server when ordering. These codes can be
found on the back of your credit card (on the front for
American Express). We want to keep things as simple as
possible but find we must add this additional step to
insure your security. If you have any problems please
call our toll free order number listed above during
business hours. We are always happy to help!
will accept money orders (treated as cash) and personal
checks (held for clearance) via mail but please allow
additional processing time. Mail your orders to:
7308 S. Klein
OKC, OK 73139
sure you include a shipping address and a phone number.
Keep in mind that personal checks may take up to two
weeks to clear. Money orders are faster for us to
process. All payments must be in U.S. funds.
Customers Read This
orders are packed same or next day. We strive to have all
items shown in our store in stock. Should any item be out
of stock we will contact you either via email or phone to
let you determine what you want to do. Depending on your
order we normally ship one of three ways. Small orders
both in size and dollars are generally mailed. Items of
size and or value are shipped either FedEx Ground or UPS
Ground depending on the area you live in. When your order
is entered you will receive an email receipt, after it is
processed and shipped you will receive an additional
email notice (assuming you gave us a valid email) with
your tracking number on UPS or FedEx orders.
large orders have to be signed
Shipping is always included in the bottom line price of
your order. No additional charges are added (except for
sales tax in Oklahoma). Call if you need express
subject to change without
Apple, Apple Macintosh, Macintosh, Mac, MacOS, Mac Pro,
Power Macintosh, iMac, iTunes, Disc Burner, iPod,
Quadra, Centris, Performa, FireWire, LaserWriter,
StyleWriter, Finder, SuperDrive, Aiport, Airport Extreme,
Safari, Big Sur, Catalina, Mojave, High Sierra, Sierra, El
Capitan, Yosemite, Mavericks, Mountain Lion, Lion, Snow
Leopard, Leopard, Tiger, Panther,
Jaguar, Spotlight, Xcode and QuickTime are trademarks of
Apple Computer, Inc.
All other trademarks are properties of their prospective
All pages for this web site were built and hosted using our
used refurbished Power Mac computers.
Still no viruses for OSX systems, why would anyone use a