Thread
Cooling for Better 040 Speed
They *did* sell them for LCs. There was even an Apple-branded one. Here's a link. And here's another link. Apparently Apple's fit in the 68040 socket, not the expansion slot. Finding one nowadays might be a problem, of course.
So, I suppose I do have to ask this question... you apparently have a powerful Windows machine at your disposal. If you're using the LC for productive work (you mentioned "MORE 3.1", which I guess is an outliner?) might you be better served just running BasiliskII or Sheepshaver on your Windows machine? My four-year-old Core Duo desktop scores something like 20 times faster than a Quadra 605 in Speedometer 4.0 under BasiliskII, and even faster in Sheepshaver. If you simply want to run old Mac software rather than specifically play with an old Mac it's probably the best option there is. Even a wimpy little Netbook will be far faster than any 68k Mac.
These are my results, in the first one I have my current HP notebook as well as my old netbook.(acer aspire one, the 1GB RAM, 120GB HDD model)http://www.poopr.org/images/84i45pzj51oyitwyu09.png
Then I have my current desktop.
http://www.poopr.org/images/j55hvjwfk01n03rsp1fs.png
Speedometer 4.02 results from Basilisk and Sheepshaver for that old desktop I mentioned. (It's a 2 Ghz quad-core Mac Pro... the very first model Mac Pro, and it's running Linux. For a single-core task like this being a Mac Pro is no advantage... my 2.33Ghz MacBook Pro actually runs these tests almost 25% faster.) Both results are obtained from booting the same 1GB disk image with MacOS 7.5.5.
Anyway. If you're running 68K code BasiliskII is the better choice, but if you've got a fat binary it's SheepShaver all the way. Either completely trounces an LC 575, PPC or no PPC upgrade.
Anyway. If you're running 68K code BasiliskII is the better choice, but if you've got a fat binary it's SheepShaver all the way. Either completely trounces an LC 575, PPC or no PPC upgrade.
No Gorgonops, please, don't get me wrong! I'd take a real Mac over an emulation any day! They may be fast, but I find them unstable and not emulative of the complete Macintosh experience.
I'll think i'll just use my Peforma from now on.
I'll think i'll just use my Peforma from now on.
Virtual ][ and Lisa Emulator are installed on my G5 quad
- most of the old mac apps runs in classic mode -
i tested the emulators, but i never use them anymore
nothing better than the real thing
- most of the old mac apps runs in classic mode -
i tested the emulators, but i never use them anymore
nothing better than the real thing
Couldn't agree more. :beige:
Not sure if its been mentioned yet (haven't got time to read all the posts, sorry!), but one way of improving speed is to play around with extensions. There are a lot you can disable and it will make a big speed difference on a machine like that.
Good point. It improves stability often too. To learn what you can and can't disable, get a hold of a database called InformINIT. And to see and disable more things than Apple's Extensions Manager will show you, try Symbionts or Conflict Catcher.
Also, you haven't mentioned what OS you're running, or how much RAM is in there, or if you're using virtual memory, or how full your internal drive is.
Because it hasn't been explicitly spelled out here, dropping in a 40MHz 040 from another machine won't help either; it'll still run at 33MHz unless you overclock it. The existing 33MHz CPU can usually be clocked to somewhere around 40MHz, especially with added cooling, but there are issues. There's also an extremely rare CPU-socket upgrade called the Quad Doubler which will run a 50MHz 040. But long before you get excited about that kind of thing, do the other stuff.
Also, you haven't mentioned what OS you're running, or how much RAM is in there, or if you're using virtual memory, or how full your internal drive is.
Well, maybe, but the 575/475/605s were the last, best and fastest of the LC series.
Because it hasn't been explicitly spelled out here, dropping in a 40MHz 040 from another machine won't help either; it'll still run at 33MHz unless you overclock it. The existing 33MHz CPU can usually be clocked to somewhere around 40MHz, especially with added cooling, but there are issues. There's also an extremely rare CPU-socket upgrade called the Quad Doubler which will run a 50MHz 040. But long before you get excited about that kind of thing, do the other stuff.
1.2 GB hard drive, around 10% full
5MB of RAM
OS 7.5.5
Virtual mem is ON
5MB of RAM
OS 7.5.5
Virtual mem is ON
Five meg??? I'm amazed you could even install 7.5.x, let alone run it.
LOL. You know the 575 can take 68MB RAM total? Upgrade the RAM, and stick 7.6.1 on it.
How did you expect it to be anywhere near fast with 5MB RAM?
You could get away with 5MB RAM and System 7.1, but it wouldn't exactly be the experience you're looking for.
How did you expect it to be anywhere near fast with 5MB RAM?
You could get away with 5MB RAM and System 7.1, but it wouldn't exactly be the experience you're looking for.
Read the other part of my quote.
That is absolutely incredible! I hope you have considered at least upgrading the RAM if you decide to stick with 7.5.5., but that probably would infringe on your attempts to better cool the system. I would recommend sticking with 7.1, and leaving the RAM just the way it is.
Adding RAM won't affect cooling in any way.
Well, I suppose if you want to get technical more ram => more transistors => more power draw => more heat generated in the case and power supply == hotter computer overall, but... yes, it would have almost zero impact directly on how warm the CPU runs. ;^)
Hmmm....interesting. I didn't know that. One would figure that the added RAM chips would draw in more power, generating more heat. I was going along the basis of traditional add-on cards- the more you install, the more heat is generated. It only sounds logical.
AHAHAHAHAHAHAHAHAHAHA no.
DRAM is mostly made up of capacitive cells.
Furthermore, the extra power draw would be in the order of a few mA ... let's say that each DRAM IC takes up 0.2mA (i'm basing this off the mitsubishi m5m44400-60), then you have 16 ICs to a card, so 3.2mA - the DRAM runs at 5V so using P = I * E we get 5V * 0.0032A = 0.016W - that's right, just 160mW! Compare that the power supply to a LC575 is 40W according to Mactracker ...
(The M5M44400-60 is a 60ns 512kB (1kx4) DRAM IC contemporaneous to the LC5xx series and thus makes a suitable comparison)
I think Bunsen's assessment of the impact of Moar RAM on system cooling is dead-on. Practically non-existant.
Dude, you should slap System 7.1 on that machine. You're seriously running 7.5 on a machine with 5mb of RAM? It's going to crawl. I highly recommend dropping back to 7.1 if your software is compatible. It uses way less memory and is typically somewhat faster.
If you drop back to 7.1, turn off virtual memory and you'll find even MORE speed increase. VM sucks. I absolutely refuse to use it because of how much it slows down the system.
If you drop back to 7.1, turn off virtual memory and you'll find even MORE speed increase. VM sucks. I absolutely refuse to use it because of how much it slows down the system.