Re: XLR8 Velocity MPe dual G4 500Mhz CPU upgrade
On May 25, 2010, at 11:53 AM, Bruce Johnson wrote: On May 25, 2010, at 8:26 AM, Larry Stotler wrote: Found this on eBay recently: http://cgi.ebay.com/ws/eBayISAPI.dll? ViewItemitem=320531235320ssPageName=STRK:MEWAX:IT Kinda pricy, but an interesting upgrade I think I've seen before. Does anyone have any experience with this? Under OS @ or Linux? Look more closely, this is NOT for a BW, but is a processor slot upgrade for the *Beige* G3's. It has dip switches. BW and Yikes all used the same zif socket. MIGHT, MAYBE, POSSIBLY be used with a lower multiplier (7.5x in a beige, 5x in a BW or Yikes) to keep the processors at 500MHz IF the processors are rated for 100MHz bus. Also, there are physical issues that may be problems. Was wondering how well the BW was able to run 2 processors compared to say a dual processor G4 system? You have two 500MHZ processors choked down by a 40 MHz bus. (iirc, maybe it' a 50 MHZ, it's been a long time since I looked at the beige specs...) Beiges have a 66MHz bus. Standard upgrades ran up to a single 533MHz G4. It's fast but not nearly as fast as it's specs would indicate. The standard supported OSX on that one, 10.2 won't take too much advantage of the dual processors, so one will be idling almost all the timethe multiprocessor code in OSX didn't start to reach maturity until 10.4. There were some multiprocessor aware apps for 9. But all in all, even if you get this for 1/2 of asking, you can get a nice fast dual G4 QS or MDD which will smoke a BW with this. For the asking price, you are in G5 territory. All in all, nice for the collector, but not for real work. Len -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: XLR8 Velocity MPe dual G4 500Mhz CPU upgrade
On May 25, 11:53 am, Bruce Johnson john...@pharmacy.arizona.edu wrote: Look more closely, this is NOT for a BW, but is a processor slot upgrade for the *Beige* G3's. Actually, it is a ZIF upgrade. I put Beige instead of BW though. Good catch. Well, here's the Standard LEM Car Analogy: Imagine a Bugatti Veyron, one of the worlds fastest production cars, capable of a 250 mph top speed. Now take out the transmission and replace it with one from a John Deere riding mower (albeit a special one, made of unobtanium that wouldn't turn into powdered metal when you tapped the accelerator :-) Yeah, I know. It's more of a nostaliga interest thing than anything else. You have two 500MHZ processors choked down by a 40 MHz bus. (iirc, maybe it' a 50 MHZ, it's been a long time since I looked at the beige specs...) It's fast but not nearly as fast as it's specs would indicate. Actually, the Beige had a 66Mhz bus. The earlier PCI versions have the 40-50Mhz buses. The FSB can be a limiting factor on some things. The main thing is what you are doing. If the dataset fits into the cache than it's fast. If it's something like encoding a movie, where you need to move the data in and out fast, it will be a dog. My G4/700 upgraded 9600 sucks at video encoding but does just fine browsing the web and word processing. The standard supported OSX on that one, 10.2 won't take too much advantage of the dual processors, so one will be idling almost all the timethe multiprocessor code in OSX didn't start to reach maturity until 10.4. That's what I was wondering. I've run linux for about 11 years, so I know how much better it's SMP support has been vs Windows and MacOS. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: XLR8 Velocity MPe dual G4 500Mhz CPU upgrade
Interesting. But $400 will get you a dual 1.25 MDD G4 w/2GB memory and leave enough money to add the USB 2.0 card which is now the only thing this model needs, and still enough money to pimp out the Hard Drives. I don't mean to dis a machine you may love, I just can't see putting that much more money into it. On May 25, 11:26 am, Larry Stotler larrystot...@gmail.com wrote: Found this on eBay recently: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=320531235320ssPag... Kinda pricy, but an interesting upgrade I think I've seen before. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
