What retro related thing have you done recently?

Anything related to retro computing.
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mwd
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What retro related thing have you done recently?

Postby mwd » Wed Jan 06, 2016 9:21 pm

Seems like this is a popular topic on a few of the other forums so I thought I'd start one here!

Today I've been cleaning up and replacing the fans on a Voodoo 5 I picked up. Not finished yet but looking forward to getting it working so that I can upgrade my Pentium 3 500 w/Voodoo 4. Currently Unreal Tournament could be a touch faster at 1024x768, although I'm not sure if that is a CPU limitation or GPU.

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Washerman
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Re: What retro related thing have you done recently?

Postby Washerman » Wed Jan 06, 2016 11:21 pm

Nice, I got a smoker's V5 last year, still has the smell even after a good ethanol wash. I remember running UT with a V5 years ago, would be interested to know your findings for my own P3 era build.

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Danthemanz
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Re: What retro related thing have you done recently?

Postby Danthemanz » Fri Jan 08, 2016 9:35 am

Nice, im really keen for a Voodoo 5, i would be interested in the V4 if its up for offer :)
I think you will find it will help with UT, although a faster chip will help to keep the frame rate stable.
Whats the board, is another chip possible?

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mwd
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Re: What retro related thing have you done recently?

Postby mwd » Fri Jan 08, 2016 12:48 pm

The machine is an OEM Gateway, it seems the motherboard maxes out at 500MHz. Unfortunately this is probably going to be too slow anyway as AvP2 which I like to play really needs more CPU power.

I have a Pentium 3 1GHz that I might end up using. Here is a photo, was just testing the V5 fans and it seems to be working which is good. Currently there is a TNT 2 Ultra installed (pretty cool looking card actually).
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mwd
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Re: What retro related thing have you done recently?

Postby mwd » Wed Jan 13, 2016 5:59 pm

Purchased these to replace on a couple of motherboards :)

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roboat
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Re: What retro related thing have you done recently?

Postby roboat » Wed Jan 13, 2016 7:27 pm

Bought myself an Asus geforce 4 ti4200 agp 8x for $8 today.
Last edited by roboat on Wed Jan 13, 2016 10:52 pm, edited 1 time in total.

Washerman
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Re: What retro related thing have you done recently?

Postby Washerman » Wed Jan 13, 2016 9:15 pm

Nice score, where was that from? thinking not eBay ...

roboat
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Re: What retro related thing have you done recently?

Postby roboat » Wed Jan 13, 2016 10:04 pm

Gumtree, I remember having a geforce4 mx variety card in an athlon xp system that I couldn't reach 1.5ghz on which I was first introduced to lan parties. So I saw that and jumped on it, 2nd fastest variety of them they made.

Washerman
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Re: What retro related thing have you done recently?

Postby Washerman » Thu Jan 14, 2016 11:59 pm

Did some ... washing :D obtained a grubby Laserwriter recently, have been planning to clean it up. Finally got to washing up the cover, it came up looking nice. Have to glue the cover arms back together though. Also gently cleaned up some cables.

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Hoping to do less cleaning and more computing in 2016!

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PhilsComputerLab
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Re: What retro related thing have you done recently?

Postby PhilsComputerLab » Sat Jan 16, 2016 1:46 am

mwd wrote:Today I've been cleaning up and replacing the fans on a Voodoo 5 I picked up. Not finished yet but looking forward to getting it working so that I can upgrade my Pentium 3 500 w/Voodoo 4. Currently Unreal Tournament could be a touch faster at 1024x768, although I'm not sure if that is a CPU limitation or GPU.


Do you have any tips for dealing with the issue of the larger fan connectors (which fit normal motherboard fan headers) and the smaller plugs on the GPU? I usually rip off the plastic around the pins, but it's not pretty and I definitely don't want to do this with a V5.
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Re: What retro related thing have you done recently?

Postby Washerman » Sat Jan 16, 2016 9:31 am

I was thinking about the same issue, as I need to replace a fan on a TNT.

Were you thinking of something like this? http://www.ebay.com.au/itm/Brand-New-PC ... SwDNdVyxdN I've been looking for the right pitch to fit a tiny fan plug, but no luck so far

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mwd
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Re: What retro related thing have you done recently?

Postby mwd » Sat Jan 16, 2016 10:07 am

Yes I've just used one of those adapters to molex connector.

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PhilsComputerLab
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Re: What retro related thing have you done recently?

Postby PhilsComputerLab » Sat Jan 16, 2016 11:00 am

That would work, but I'd love to be able to connect it to the PCB.

I have seen an adapter, but it's not cheap: http://gelidsolutions.com/products/inde ... d=11&id=60

Unfortunately I haven't found a cheap eBay knock-off, just the standard size fan splitters.
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Re: What retro related thing have you done recently?

Postby roboat » Sat Jan 16, 2016 12:53 pm

PhilsComputerLab wrote:That would work, but I'd love to be able to connect it to the PCB.

I have seen an adapter, but it's not cheap: http://gelidsolutions.com/products/inde ... d=11&id=60

Unfortunately I haven't found a cheap eBay knock-off, just the standard size fan splitters.

There is one on ebay.com.au for about $8 delivered

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PhilsComputerLab
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Re: What retro related thing have you done recently?

Postby PhilsComputerLab » Sat Jan 16, 2016 11:29 pm

Yea, call me stingy, but I refuse to pay that much for a little cable that should cost a dollar :/
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monaro327
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Re: What retro related thing have you done recently?

Postby monaro327 » Mon Jan 18, 2016 3:51 pm

Just picked up an AMD 287 10MHZ fpu. Hopefully it works ok with my Intel 286 12mhz cpu. I've read most 10MHZ fpus will run fine with the 12mhz cpu? anyone had any experience?

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Re: What retro related thing have you done recently?

Postby Washerman » Mon Jan 18, 2016 7:30 pm

monaro327 wrote:Just picked up an AMD 287 10MHZ fpu. Hopefully it works ok with my Intel 286 12mhz cpu. I've read most 10MHZ fpus will run fine with the 12mhz cpu? anyone had any experience?


No personal experience with the 287, but I thought I'd check Scott Mueller's 8th Edition (1998) to see if it said anything.

Instead of butchering what is said there, this is the comment on the 286/287:

"In most systems, the 286 internally divides the system clock by 2 to derive the processor clock.
The 287 internally divides the system clock frequency by 3.
For this reason, most AT-type computers run the 287 at 1/3 the system clock rate, which is also 2/3 the clock speed of the 286.
Because the 286 and 287 chips are asynchronous, the interface between the 286 and 287 chips is not as efficient as with the 8088 and 8087".

So I guess that means your system clock would be 24MHz, the CPU is 12MHz, and the 287 would run at 8MHz - so you'd be OK. Interesting to know, I've got a 286 and might have to think about this down the track!

monaro327
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Re: What retro related thing have you done recently?

Postby monaro327 » Mon Jan 18, 2016 9:53 pm

From what I understand the 287 fpu is actually of little use but figured why not have the system specced out a bit.

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avalanche
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Re: What retro related thing have you done recently?

Postby avalanche » Tue Jan 19, 2016 6:54 am

Re question about fan connectors...........

I'd just join the old fan plug to new fan. Splice wires & heatshrink over top
Can be done very neat, take your time with it.

monaro327
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Re: What retro related thing have you done recently?

Postby monaro327 » Mon Feb 15, 2016 9:48 am

FYI, received my 287fpu, and the doco above appears correct. The benchmark tools I have run report the FPU as running at 8MHZ.


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