Not that I'm aware of, but upgrading the 8088 CPU to a V20 can in some cases cause other issues.also i like to know if a v20 will conflict with a math coprocessor?
One possible upgrade is to remove the second floppy drive and then fit a hard drive and controller.if you guys can suggest a list of stuff for this computer i be thankful.
Not that I'm aware of, but upgrading the 8088 CPU to a V20 can in some cases cause other issues.
You turned my "can" into "will".if the v20 will cause problems i won't get it.
Yes, software and firmware.I think Modem7 is saying that the V20 is incompatible with a very small number of programs.
I agree.But I would not let that stop me from upgrading to a V20.
It would not result in a performance improvement - the motherboard would run the 'faster rated' 8088 at the same speed as the old 8088.is there a faster 8088 that will fit this computer?
For some techniques of transferring software from new to old PCs, see http://www.minuszerodegrees.net/transfer/transfer.htmis there ways to put software on new blank floppy disk? beside buying old floppy disk off ebay?
Naw, don't bother with the caps in the PSU unless it gives you trouble. The 5155 PSU is pretty robust. I've tried to kill mine a couple of times, but it keeps on goin'. (Do give the old girl a good cleaning though.)I would though strip the machine down and give it a good clean, and probably replace electrolytic caps in the PSU (might find some RIFA filter caps in it too).
As far as speed goes, people don't buy the 5155's for speed. They buy them because they are True Blue IBM and they are cool. But there is nothing wrong with trying to get a little more performance out of one by putting a V20 in it. The V20 will also let you run a few programs that won't run on an 8088 due to it's enhanced intstruction set.I'd not bother with the V20 personally, since after all there are any number of faster portables if that is the goal.
FIRST Ground yourself. There are a lot of static sensitive parts in there.how can i remove the cpu correctly?
I use isopropyl alcohol to clean then very small amount of silicone lube with a Q-tip.What do you guys recommend for lubricating the rails?
Maybe once every 15 years.Also do you actually do this regularly?
The floppys on my original 5155 started acting up about 5 years ago and cleaning and lubing the rails fixed it right up. I also bought a 5155 from ebay a while back with non functioning drive A. Cleaning and lubing the rails fixed it right up.To be honest I have never done it and even my 5150 drives (which are original) continue to run w/o a hitch. I know all oil will break down, get dirty, get sticky, but if its working fine maybe it is a case of leaving well enough alone?