How to upgrade your GoldenGate486slc/25mhz to 486slc2/50mhz!

[keropi]

I succesfully upgraded the 25mhz 486slc cpu of my Goldengate to a 486slc2 cpu that is 50mhz! without any soldering ofcourse!
first you need the Cyrix 386to486 piggy-bag upgrade cpu, that was intented for 386SX cpu's...



I bought this brand-new old stock still sealed from eBay for 25$ :lol:

then you just install it on-top of the existing slc cpu...



... and you boot the GoldenGate486slc as normal.... but you notice something different on the cpu clock reading.... :-D



and it actually works! the gg486 is faster and u only have to run a small prog on autoexec.bat to enable internal cache and pipelining! yeah!!  :lol:  :lol:  :lol:

[cv643d]

Teh Win!!1!  :lol:  :-o  :lol:  :-o  :lol:  :-o  :lol:

[amesie2]

@keropi

Glad to hear it worked for you!!

My dad had a GG 486slc 25mhz at one time and sold it we were always going to upgrade it to the 50mhz but never did get around to it. The GG was installed in a 2000 with a hardcard and 50meg hard drive. We also had an 8 bit sound card and an IDE controllor installed with 400meg drive attached to it. The GG ran Doom II and Duke Nukem pretty good too. There was also a Speedstar Pro video card installed in the system ( I think).

I don't know what OS you plan on running on the GG we were able to run Windows 98se on his just fine of course not the fastest around but it ran fine.

[adonay]

COOL  :-o wonder if those 486 to pentium overdrives can work  :-o  :idea:

[Kronos]

@adonay

A 486slc has nothing to do with a 486DX (nor SX), so no cigar on that one.

[keropi]

and here is the benchmark results of Norton SysInfo !
:lol:  :lol:  :lol:

 


I am not sure it can run DOOM ok... I will try it...

[keropi]

tested DOOM, it is unplayable... great improvement from 25mhz, but it must run at ~12fps...

[adonay]

cyrix line of microprosessors was never known for their great speed either .. remember i had a friend he bought a 200 mhz cyrix while i had a 200mhz pentium computer. the cyrix always 90% of all programs would display it as 166mhz ,, and still a third friend who had a 166mmx pentium had a slightly faster computer .. Although i am sure the slc chip has nothing to do with this "only i never liked cyrix after that " may have been good prosessors before though..

[keropi]

yeah, the 486slc are really some kind of super 386sx, it has nothing to do with 486 really... it is pin-compatible with the SX and has the same size too. an i486 is 4-5 times bigger too...

[amesie2]

@keropi

Do you have a video card installed to play Doom or is it the on board graphics?

[keropi]

ofcourse I have, a CirusLogic 5420/1MB and an ESS soundcard with wavetable upgrade...

[Zac67]

@adonay

Cyrix used a rating system, so a 200+ CPU actually ran with 166 MHz. Very specific benchmarks really showed a performance near a Pentium 200, but since esp. the FPU really sucked, more realistic benchmarks showed more P133-like performance.

[bloodline]

What is cool is that you can now get a whole 486 computer (everything) on a single chip...

http://www.zflinux.com/zfx86.html

[Plaz]

I always wondered if that could be done. I even saved a couple of those to try myself, but I never got a board to try it in.

So did you get cache driver loaded to increase the speed even more?

Plaz

[Damion]

bloodline wrote:
What is cool is that you can now get a whole 486 computer (everything) on a single chip...

http://www.zflinux.com/zfx86.html

Not as fancy, but worth an honorable mention...