PowerPC :: Ubuntu G3 IMac Overclock (pencil)
Aug 13, 2010
I scored a G3 400DV from an internet auction site for AU$10. So far I have put 256mb ram, and changed out the HDD (storing the original just in case). I have a fully up-to-date PPC Ubuntu install on it, Firefox 3.6.6 running on an old G3 mac. I want to overclock it as discussed Is it necessary to SOLDER the bridges in, or does graphite pencil do the trick? I'll pick up a B pencil this weekend and when I feel cocky enough I'll de-solder a resistor and test...
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Mar 14, 2009
I have an IMac G3 rev.b and I know how to overclock it but I was wondering if I can just solder over the gap or do I have to reuse the resistors.
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Oct 21, 2008
i have a purple tray-loading imac g3 and it runs good. but i was looking at the processor speed and it isnt much. i think only 333MHz. is there any way to overclock it without changing hardware, such as a software that will run on 10.2.8? i only want another 50MHz from it or so. it is a powerpc processor, ram modules are directly on the processor, no pins
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Oct 10, 2006
I've tried to boot an Ubuntu live-CD that I ordered, unfortunately all that happens is a weird unix menu comes up and tells me to choose how to boot it? I tried all the options, some left the screen offf with fans on max, others actually brought up some loading bar then the system kinda shutdown but it was still on. Anyone successfully booted Ubuntu on an iMac G5?
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Mar 6, 2007
I have been trying to upload ubuntu on imac g3 graphite 600 mhz model with the cd they sent me it goes through the steps loads what it wants makes the music sound but all i have is a black screen???? any ideas what to do? Cannot see anywords the desktop nothing.
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Feb 24, 2007
Is there any way I can overclock my b&w g3 350mhz?
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Feb 21, 2009
My Digital Audio Power Mac G4 is running at 800 MHz with the 1MB L3 cache but I saw on a website that's it's possible to clock it up more. I have a pretty powerful non-OEM cooling fan on the processor heatsink. I have a resistor in the R5 position so it does run at 800 MHz but I want to get it up to 867 and the site shows that it needs the "jumper set" at R5 and R1 so does that mean I can just leave the existing R5 resistor where it is and just melt a little trace of solder over the R1 to connect the two R1 ends together?
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May 28, 2009
Well, using some guides (check bottom of post), I did some experimenting with my old G4 Sawtooth to see how fast I could run its lame 400mhz cpu. Ultimately, my goal was to make Quake 3 playable at a resolution other then 800x600. These tests were all done with PC-133 ram (896MB), running 10.4.11.
Starting specs:
400mhz (4x100mhz)
Xbench cpu score: 19.9
1st overclock (with 400mhz cpu):
500mhz (5x100mhz)
Xbench cpu score: 29.3
Note: This was incredibly unstable.
In the process of moving to 450mhz on the 400mhz stock cpu, one of the jumper resistor solder pads came off (lame 10 year old glue). So, I went on ebay and got 5 450mhz G4 cpus for 50$ CDN after shipping. One of them came dead, and one failed after the jumper change.
2nd overclock (with 450mhz cpu):
500mhz (5x100mhz)
Xbench cpu score: 22.3
Note: This sucked. Now really stable, but I didn't get a performance gain like I got with the 400mhz cpu, and Quake 3 still ran like crap.
So here I decided to do the FSB overclock. Knowing I would end up with 4.5 x 133 which would be too fast, i jumpered a cpu to 3.5 multiplier for a 466 clock. This never booted. I put in a 450mhz chip and...
3rd overclock (with 450mhz cpu):
533mhz (4.5x133mhz)
Xbench cpu score: 25.6
Note: That multiply doesn't make sense. It shouldn't be 533. But hey, it worked, stable, and I got a performance gain.
4th overclock (with 450mhz cpu):
533mhz (5x133mhz)
Xbench cpu score: 29.3
Note: Ok, the clock is still not right. This is the same cpu that did the 5x100 so I know the multiplier is set right. But hey, its doing better in the scores!
Conclusion: Success! 533mhz seems to be the top out with the NVRAMRC script in place. But there is a considerable performance gain everywhere (booting, app loading, etc). Most importantly, my Quake 3 now runs very smooth @ 1280x1024 with max graphics settings. I am a very happy camper. I can take pictures of the solder job if anyone requests them. I do recommend this if you have some good technician skills.
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Mar 14, 2010
How can i succesfully and efficiently overclock my iMAc g4?
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Aug 13, 2010
Would it be possible to overclock the 5670HD in the 21.5" iMac? I heard somewhere, judging by the device ID, that it is a 5730M card. I have been watching the thread on clocking the 5850M, and seeing the great FPS improvements, so was wondering if it would be in anyway possible to do it to the 5730M. Heres what it says in System Profiler:
ATI Radeon HD 5670:
Chipset Model:ATI Radeon HD 5670
Type:GPU
Bus:PCIe
PCIe Lane Width:x16
VRAM (Total):512 MB
Vendor:ATI (0x1002)
Device ID:0x68c0
Revision ID:0x0000
ROM Revision:113-B9850H-133
EFI Driver Version:01.00.416
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Nov 26, 2006
How do I overclock my iMac? Step by step instructions would be AWSOM.
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Feb 18, 2007
I'd like to try running Ubuntu (6.06) on my G3 400 IMac. Is there a tutorial on how to do this? At least how do I get to boot mode? I'm running OSX.
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Dec 8, 2009
I was looking on GeekBench and noticed there are quite a few quad core iMac that are running faster than the 2.66GHz of the i5 and the 2.8GHz of the i7. I can't make sense if people really are trying to overclock or just somehow are making Geekbench think they have a faster CPU/are editing their scores somehow. How in the world could one overclock the iMac when cooling is a serious concern?
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Apr 28, 2007
I am making a summer project out of dual-booting my G4 PowerBook with OS X and Ubuntu. I downloaded and burned the Fiesty PowerPC ISO. The live CD is awesome. I really really want to make this happen. I had tried installing Ubuntu back in the Edgy days, but it just wouldn't work properly. The trackpad wasn't working right, my wireless card wouldn't work (damn you Broadcom). Has anyone installed Fiesty and have it working on thier G4 PowerBook?
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Jun 11, 2010
I used to have a crappy old PC a few years ago that could barely run XP soooo I put Ubuntu on it, and it ran smoothly... my crappy iMac has these specs.
333MHz
64mb of ram
6GB HDD
OS 9.1 (or 9.2... don't really know, except for the fact that it's still classic) Will it run linux? I'm currently downloading Ubuntu Netbook... will it work for my iMac? If I end up hating it will I be able to go back (with proper install CDs) and install Mac OS again?
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Sep 7, 2014
Closed lid on pencil near hinge and screen stopped working on 2008 macbook air
Info:
MacBook Air, iOS 3.1.2
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Jun 5, 2014
What does apache 2.2.22 (ubuntu) server port 80 forbidden user mean?
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May 17, 2008
For those of you who are using 8800 GTS instead of non-apple 8800 GT, you can use NiBiTor to reclock your 8800GTS back to its factory higher clock speed and increase voltage back to factory firmware level without using software/registry overclocking (ie, RivaTuner). This way you dont even have to use RivaTuner (although it is great program if you want to overclock your card beyong factory overclocked speed or reference speed). But most importantly you can change back your card's voltage from 1.1V back to 1.15V.
You need NiBiTor 4.0, 8800GT32.rom (from this forum), and most recent Nvidia beta driver.
1. verify 8800GT32.rom checksum (under Adv. Info tab) before you start. Ignore integrity red warning as that is from different file size due to OSX EFI which you need to boot OSX
2. change Device id from 0602 to Nvidia PCI-E 8800GTS G92 (0600) under main screen
3. under clockrates tab, enable change amount of active performance levels. recycle levels from 0 to 4 to enable "extra" row. Enter your card's true core, shader, and memory speed from factory. Put 0 for all 3D, Thrtl, and 2D. Mine was 678 core, 1728 shader, and 972 memory.
4. Under Tools select voltage table editor, change entry 1 to 1v, entry 2 to 1.05v, entry 3 to 1.1v, and entry 4 to 1.15 v
5. Under Voltage tab, change "extra" under exact mode to 1.15v. VID mode should automatically change
6. Under temperature tab, fanspeed column should now automatically have 100% for extra, 3d, thrtl, and 2D. If not put 100%.
7. open "fanspeedIC" under temperature tab. Fill into match your original 8800GTS firmware setting. Mine was TCirt = 83, min Duty cycle= 37. Rest were same as 8800GT
8. Save. and done. Just dont change Sub Vendor ID, Sub System ID, Board ID. Otherwise your card wont boot under OSX
If you want to overclock higher speed, you should experiment with RivaTuner before overclocking with firmware.
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May 31, 2008
But I can't find any applications to do it! Graphicaccelerator says it can but it does not work under 10.5.
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May 2, 2010
I just wonder if it's possible. Nothing it proposed via ntunes.
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Apr 7, 2008
I was just wondering if you can overclock the 8800gt from its stock rating? If you can is there any real benefit? And lastly if you can and there is a benefit how do I go about doing this?
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Nov 3, 2008
I like the overclock tool from ZDnet but would like a way to make the settings stay after a hard reboot. My system is stable and I do not want to always leave my system on. Anyone figure a way to push these settings once you find a threshold that is stable?
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Mar 25, 2012
how to overclock the cpu and the gpu in my macbok pro 13 inch core i7?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Sep 6, 2010
I've come into possession of a 1.83 Core Duo MacBook and I am curious if you're able to clock the processors on these in anyway? I appreciate the implications of doing this on a laptop / notebook type device, but I want to know in theory if it is possible. I understand the maximum ram on a MA254LL/A is 2GB... is this correct? Will it not ready any more? In terms of the CD drive, is it possible to upgrade it to a superdrive? Is this easy or simply not possible? I've seen a few on ebay, and would be curious to know if they'd work. How far can you get with a MA254LL/A, whats the maximum HDD you could pop in?
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Apr 23, 2010
I know a couple guys in the MBP refresh gaming thread were able to overclock using Nvidia Tools. I'm not having any luck; the sliders are grayed out and I can't make any changes with system tools 6.06. I've also got errors when trying to install Nvidia drivers other than the ones included with Bootcamp. What driver/system tools version are you using to OC? And what settings have you tried? (I'm on Windows 7 64bit).
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Apr 28, 2010
I searched, but didn't find anything too specific on here. Can anyone recommend some good overclock values for my 9600m in bootcamp using nvidia tools? Basically, I'm looking for a stable profile or some recommended settings you've been using to overclock your 9600 in bootcamp. Maybe upload a screenshot like the one below with your custom adjusted settings for memory, core, and shader clocks. I'd rather not play around with it if someone has found a fast/safe setting that increases performance.
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Jul 2, 2010
I'd like to know how many over clock their 330M and how much. Somebody without Windows, who hardly ever plays any kind of game probably doesn't over clock but there are probably many that do play but still don't over clock. The only game I am playing now is Modern Warfare 2 and over clocked the 256mb 330M offers about 25% more performance. That is the difference between 25 and 30 fps. I found that temps don't really rise. At default the GPU reaches about 70C and the CPU around 50 (idle is 32-40). Over clocked 645/808/1451 it avg 73C and CPU is a little lower on 48-49C because the fans work a little harder while the CPU has the same amount of work. That sounds pretty cool to me and I didn't even test any higher, because usually a notebook GPU is a cool chip that over clocks well as long as it is cool enough, and desktop GPUs on the same silicon sometimes run standard on almost 90C. The max temps are higher with 82C which it reaches after game start for a short period until the cooling really kicks in. There is no fan control prog running. That is a 30% increase in clock speed with almost no increase in temps.
I don't know how to read out fan speeds in windows but I don't notice the fans from in the loud gameplay anyway. What are your clocks?? I don't like benchmark tools as they don't determine what matter really to me. I know with furmark I get higher temps but I am not running furmark for fun ever. I play CoD. I used in the game (Call of Duty MW2) in Act 2 of the campaign the misson "of there own accord" because it is probably one of the hardest with the lowest min framerates. I get stock 24-25 fps running outside and min 22. Inside it is 33-60fps. Over clocked it is 28 min 30-31 outside and 38-120 indoors. I use native res (high res) but no AA and no soften smoke edges because it kills performance in some scenes and I don't see the difference. Everything else is on the maximum I can switch it to and the textures are high. AA is only missing in some levels with high contrast where edges start flickering a lot but in general I prefer the higher res over AA. It is just more detail and easier to see the enemy.
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Nov 27, 2004
my home-country local MAC forum cannot resolve. The thing is,that I did a bit of overclocking on my G3 DUAL USB 500MHZ IBOOK.I overclocked FSB bus to 100MHZ and CPU speed to 600MHZ.But after
that,my IBOOK wouldn't recognize internal HDD.Laptop itself works just fine, it boots from OSX Panther CD and so on,but OSX install JUST WON'T SHOW ME ANY HARD DRIVE WHERE TO INSTALL ITSELF ON TO.As you know... CD and HDD are connected via the same cable to the motherboard and CD works fine.I thought that maybe the part of the cable which was connected to the hdd was broken,so I changed the hole cable.Nothing happened,everything was still the same.I have tested HDD in other computer and it works fine.Also I have tried 2 different HDD-s in Ibook- still the same.I have also tried to reset everything I can> power managment reset (through that button) and reset via functsion+option+p+r (on keyboard...or smth. like that) My smartness has run out.What shall I do?
I should mention that if I don't but any OS cd into the CD-DRIVE,then I get flashing folder with question-mark on my screen.
Anyway,I think that the problem might be related to hdd partitions.I deleted my original OSX partition right after I got overclocked laptop back (because OSX install didn't recognized it) and then changed HDD-s partition to FAT32.(I thought that maybe OSX partition had been damaged during the overclocking process) But maybe the problem was still the cable (right in the beginning) and now OSX install wouldn't recognize my hdd, because it's in FAT32 format? Other thing what makes me think about that: as I told,if there is no CD in CD-DRIVE IBook shows blinking question mark with a folder on its screen.But yesterday I managed to delete hdd's FAT32 partition and replace it with HSF+. (in other laptop and in Windows XP) And when I but that hdd with HSF+ back to my IBOOK one change occured.Now, if it is turned on without OSX CD in it's CD-DRIVE, it shows on screen at first big globe and after a while blinking question mark with a folder.Therefore I assume,that the problem cannot be in hardware,because if I changed HDD partion type, then something else also changed?? Anyway OSX install still didn't show any HDD. What I have to do?? Could FSB upgrade be the key to that problem? (I don't want to believe it,because I read,that if overclocked,IBOOK would work fine, or it would crash- nothing related to the hdd.)
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Dec 9, 2010
I need to add an ubuntu partition to my macbook pro (5.1 version, first unibody 15" from oct 2008). I need ubuntu to SBF flash my phone. Windows 7 64 bit pro has issues with Motorola USB drivers. Anyway, trust me, I need ubuntu to boot from HD. It cannot be running on livecd, and it cannot be running on virtual machine. Now, I have used REfit before to dual boot OSX and linux. But I really want to maintain my windows partition. Is there a way I can maintain the two partitions I currently have and install ubuntu to a third 10 gig partition?
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Feb 13, 2009
I am having trouble booting into an Ubuntu CD. Sorry about posting it here, but I thought that a Mac community would better suit it. When I first got this machine (was second hand) it came preloaded with OS 9. Immediately I wiped the HD and install a copy of Ubuntu 8.04. The CD was put away and not touched since today. Since then I have install OS X (best OS ever!) and recently I got my hands on a new HD, so I decided to install Ubuntu on it. My only problem is that it won't boot up from the CD.
Again, as I said before, this CD has not been touched since I booted up and installed from it, so long ago. The only possible difference in my computer is the new HD. As soon as I hold down 'C', it shows a white screen and that is it. I have also tried holding option and selecting the CD, but as soon as I hit the arrow, it just displays the same screen again. I will also say that I have no trouble in booting from the Mac OS X install DVD. It was the Live CD that I used last time, but I also have both the live and alternate install disks of the same version.
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