Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
G4 7448 and 7457 swap
- Thread starter JoyBed
- Start date
- Sort by reaction score
So you recommend trying to OC the 1.25ghz 7455 or installing the 7457 plus 2mb of L3 cache?
Well I can do an upgrade to dual 7457 and add soke switched so you. an adjust your cpu multiplier and also divider for L3 in software. If you adjust the division for the L3 caches correctly then the 7457 can do around 1,8GHz.
Hi JoyBed, I was hoping you would be able to do a conversion like this!! Is this procedure something you still perform?
Yeah sure, I still do that if you want. Sorry for the VERY late reply, I was away for quite some time.
You need to have a certain number of posts before you can start one, but other members can start one with you.
Thanks mate got your message but still cant reply!! I still get the same message;
Oops! We ran into some problems.
Your content can not be submitted. This is likely because your content is spam-like or contains inappropriate elements, such as URLs. Please change your content or try again later. If you still have problems, please email us directly at support@macrumors.com
I'll see if support can help.
Well, thats a BS from macrumors side but i understand their intentions. Nevermind, just tell me what upgrade you want from me.
Yep still locked out of any private conversations...
Anyway, I am hoping for a MDD 1.25ghz dual to a dual 1.8+ghz setup with upgraded L3 cache mod?
Also, I noticed in an earlier post that your were chasing a 7800GS card to try out? I happen to have a spare one that I am happy to flash for you. It's yours if you want/need it, no charge mate. I'm just happy there's someone like you with the skill to hopefully do a conversion like this.
Anyway, I am hoping for a MDD 1.25ghz dual to a dual 1.8+ghz setup with upgraded L3 cache mod?
Also, I noticed in an earlier post that your were chasing a 7800GS card to try out? I happen to have a spare one that I am happy to flash for you. It's yours if you want/need it, no charge mate. I'm just happy there's someone like you with the skill to hopefully do a conversion like this.
No problem doing ANY conversion but money is always a hurdle. Many people texted me and then just backed out when they found out the prices. And I must say that i charge almost NOTHING for the work and labour, almost whole price for conversion from me is composed from the prices of parts used(processors, cache chips etc…). If your PMs are working normaly now then leave me a message.
Hello, I write from Spain. I am looking for where I can buy adapter boards to mount 744X chips on boards for 745X processors. I have a Quicksilver at 800 MHz without L3 cache and it might be interesting to install a 7447 at 1.67GHz that I recently bought.![48adapter.jpg]()
Thanks.
My CPU card is QS 800MHz without L3 cache, is 745x card. I have a 7447B@1.67GHz chip purchased on ebay.
Those interposers were created by “Herd” on 68KMLA. Don’t think he sells them by themselves, he normally uses them himself to upgrade and sell CPU cards.
Some low-end Quicksilver cards did not come with it, despite having 745x CPUs (the pads for L3 cache are there, but no chips installed).
Than a L3 cache chip can be added and a 7457 chip installed. Better than plain 7447.
Yeah... Any machine that used a 744x CPU of any kind from the factory can be upgraded to a 7448, just with a VCORE voltage change, a small BootROM modification, and setting the PLL configuration resistors for your desired clock speed.
I don't have this L3 cache chips and don't have the small capacitor-resistor-regulator needed (and don't have the schematics), for me is better a PCB-adapter to 744x
I want a pair of 7448!!!!
