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Cyrix MediaGX Processor Infomation

New MessageCyrix MediaGX Processor Infomation (modified 0 times) Beans
http://www.cpu-central.com/mediagx.html

This is the processor in the WebSurfer Pro. Don't expect to upgrade it.

The highest speed(180MHz) processor comes with the WebSurfer...

Beans

04-27-2000 14:11:03

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Squash
Profile | Email
I have successfully overclocked mine to 233mhz, with no stability problems. I tried 266 but it would crash. THe board does not support AMD K6-2 cpu, I'm guessing the chipset requires the MediaGX functions.
- Squash
04-27-2000 14:12:54

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Jopasm
That's an old spec sheet - I think the MediaGX is up to a higher speed now - National Semiconductor bought the design from Cyrix. I did a *very* quick search on http://www.national.com - didn't find a lot. The Geode processor is based on a MediaGX core (looks like it's got a few more functions integrated in the chip).
04-27-2000 14:17:40

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) DarthFloS
Stupid question time: The MII isnt the same beast is it. I did a quick search on pricewatch and pretty much the only cyrix chips that came up were MII chips.

They did go up to 400Mhz tho :)

04-27-2000 23:32:35

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) ssw207
Single quantity GXm 266 Processors can be found here:

http://www.ied.pios.com/onestop/partdetail.asp?mfg_code=NSC&part_number=GL-266P-70-2.9&sSearchID=3545124&rnd=949

04-29-2000 00:29:24

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Beans
OUCH $77 hurts!

Beans

04-29-2000 00:44:10

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Inglewood
I'm still in the first hour of Major Overclocking, but so far so good. I bought a *big* Aavid (sp?) K6-2 fan from a local shop... it's gotta be an inch and a half or more tall. Cost $10, so you know it's good... ;) Anyway, clipped it onto the processor, and then realized it's just a mite too tall. Fortunately, the screws that hold the fan onto the heatsink push the top of the case off *just* slightly, which keeps the fan from rubbing, and of course there are the nicely placed vents right above the CPU. So, it's a 266MHz right now, and I got entirely through a Win98 installation... dunno how long it'll last, but...?

-Inglewood

P.S. Conveniently, the fan I pulled from the MediaGX looks just about right to fit in the I-Opener... :)

04-29-2000 00:56:42

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) ssw207
Did performance really increase at 266? Have you tried playing MP3s?
04-29-2000 01:01:13

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Rick
If you plan on reusing the fan in the i-opener you should use the heatsinck as well. And you need to find 12 volts on the i-opener for this fan. Let me know if you get it to work.

--Rick

04-29-2000 08:47:15

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Ledfoot
Well, I'm running at 266 MHZ on mine, but I also have had some stability problems. I'm suspecting that it's with the Chipset itself and not the CPU. I say that because I put a BIG antec Heatsink/CPU combo with thermal grease in. (Got the sink/fan combo from Best buys for $10). The CPU/heatsink is cool, but there seems to be a LOT of heat resonating from the center of the MB (where that silver chip sits.) It's crashed on me 3 times while I've tried to compose this message. I popped the cover off after the 3rd lockup and it seems to be running better. I'm gonna drop back down to 233 and see if that helps. Might also be an issue that my IDE cable is partially covering the escaping heat from that chip, not allowing it easy escape through the holes in the top of the case...

Oh, also, NOT a good idea to place this unit on top of your stereo receiver or VCR. Those things tend to throw up a LOT of heat. I kinda forgot about that which I'm sure caused the first lockup.

BTW. I have WinAmp running in the background while I write this to push the CPU. I have 48 Megs in this machine and running even stock with just the RAM upgrade MP3's played fine. MP3's are very dependant on having RAM to do the decoding work in. 16 Megs is NOT enough!


My machine:

Old ISA controller card. Only HD and Serial port enabled.
Toshiba 1.2 gig IDE 2.5" drive (powered off the internal PS)
DLink USB ethernet adaptor
Clock at 8x, bus at 33MHz.

As soon as I get a little time this week, and get the film processed I'll put together a web site on the WebSurfer Pro to try to bring some of this information together into 1 place instead of forcing everyone to hunt through the 100's of posts to get the info they need.

Damn, wish I hadn't gotten locked out of the I-Opener deal... Pisses me off.. I had one and nuked the Bios socket in my excitement. Had to return it to the store to get my $$$ back. :) Glad I got in on this deal though!

04-30-2000 15:40:44

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Tanny
Ledfoot,
could you post a follow up message if you drop your CPU back down to 233. Your info could greatly help me. My main question is that at 233, with a I/O HD card, and the extra RAM, will MP3's skip when playing off a network with an USB to ethernet adapter. You seem to have a very similar setup to what I would like to do, but so many people are reporting MP3 skippings with a similaer setup, that I was considering the onboard IDE solder. Your testing could be a great help. Many thanks in advance.
-Tanny
04-30-2000 15:57:35

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Not Quite
From www.websurfer.com/Press/Press1999/99PressDec20/99pressdec20.html

The WebSurfer Pro reference design was cooperatively developed with
National Semiconductor and features a National Geode GXm processor.

so the National chips "should" work.

http://www.national.com/pf/master_GX.html

the GL-266P-70-2.9 costs $61.5 in quantity 1000+, so $77 makes more sense on the price.

On the National pages I only found a single 5530 part, so while it maybe generating heat it should clock to 266MHz.

I'm a novice overclocker, so all the hints are appreciated.

04-30-2000 16:53:10

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Ledfoot
Ok, here's a follow up to what you were asking about fro my previous post.

I dropped the bus speed back down to 30 Mhz, so the chip is running at 233 now. Everything SEEMED to be running fine, but when I went downstairs to fetch some MP3's to put onto my "server" to run your test, when I came back upstairs to the WebSurfer it had locked up. I had put the cover back onto the machine between my previous post and the lockup. Nothing felt particularly warm ,but who knwos. I've pulled the cover back off and will run it this way for a couple hours, surfing while playing MP3's to see if it locks again.

So, basically, I'm thinking the problems could be caused by one of the following:

1) Thermal (the hard drive seems to get RATHER warm. I'm thinking of drilling some vent holes above it and the power supply to give them a little air.)

2) RF ?

3) electrical? (the hard drive is touching the case. I've heard that there is some current running through the casing. Thinking this might be causing an intermitent short?)

4) Drivers? (some have metioned problems with the audio drivers....)

5) some sort of IRQ conflict

6) The memory I put in? I don'tknow if what I put in is PC66 or 100 or if that would make any difference in this thing. When I clocked up the CPU I didn't change any of the RAM speed settings in the BIOS. Could be I'm pushing it too hard...

Anyhow, back to your questions: Ok, I have a Win98 desktop machine downstairs with a P2-333 acting as my server. Using Microsoft File sharing over TCPIP on my home 10 MB LAN (no other traffic on the LAN at the moment) I'm succesfully playing MP3 with NO skips, and writing this message. A couple things though:

1) I am using only the built in basic visualization on WinAmp (the little spectrum analyzer thing). I have the visualization priority setting set at slightly below normal (who cares about the visual? I want MUSIC!)

2) I set the MP3 decoder priority setting to 1 setting above "normal" so WinAmp is getting more CPU cycles than normal. Makes everything else a little sluggish. As long as you're willing to live with the tradeoff it's not bad.

3) I have WinAmp set to pull the data as needed, Not to pull the whole file before playing. If I was on a busy network I'd probably switch that to avoid collision issues.

Anyhow, I'll let you guys know how it works out, but I can categorically state that the built in CPU is QUITE capable of playing MP3's WITH USB ethernet pulling the files. Clocking up to 233 just makes the whole system a little nicer to work with.

BTW, I'm running stock Win98 (first edition). No patches, no upgrades, minimal install of stuff.

Hope this helps out some.

04-30-2000 19:23:04

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Ledfoot
Ok, about 2 hours into usage it locked up again on me (still had the cover off. Ive now dropped the speed down to 200 (7x mult * 30 Mhz bus.. Don't ask me who did this math!) Anyhow nothing really felt warm at all. Even at 200 MHz I'm not gettign any hiccups from the USB ethernet pulling the music as it plays.

Actually, I should take that back. I do OCCATIONALLY (like once an hour) get a hiccup, but certainly no worse than a CD skipping. I can live with it since I'm also writing and surfing. Probably won't happen when WinAmp is the only thing running.

Oh I also pulled out my Disk On chip before booting after the crash to make sure it's not causing the problem.

Will keep you advised...

Ledfoot out...(or rather "into" bed)

04-30-2000 20:33:34

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) Tanny
Ledfoot,
thank you so much for running the tests. You have me convinced now to go with the ide controller card, usb to ethernet adapter, and getting more memory. I got the WebSurfer last wednesday, but I spent so much time hacking the iOpener I had to give the weekend to my girlfriend. By the way, she laughed when she heard I had got another toy to hack, and said oh no, here you go again. But today, she spent all afternoon surfin the net on my little iOpener. She is already getting exctied about the WebSurfer. Hehehe, can't wait to get it set up. Again, thanks Ledfoot for the tests, you saved me alot of time, as well as propbably kept me from ruining my WebSurfer MB if I had tried the onboard solder method (I am not a great solderer, and damn those resistors are tiny!).
-Tanny
04-30-2000 22:58:50

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) raistlin
Ledfoot,

How did you overclock yours?

05-01-2000 13:28:52

New MessageRE:Cyrix MediaGX Processor Infomation (modified 0 times) BcPuX
Profile | Email
Just change the jumpers.....there are posts all over this place with the info.
<--Insert Clever Comment Here-->
05-01-2000 18:14:28

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