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susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
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 Posted: Tue Apr 29, 2008 6:47 am Post subject: Cyrix MediaGx 550-S |
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I got an interesting cyrix chip, and "MediaGx 550-S" is printed on it.
Please look at the following picture. |
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Qwerty
Joined: 20 May 2005
Posts: 3141
Location: Germany
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| Posted: Tue Apr 29, 2008 7:12 am Post subject: |
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Unfortunately it's a fake. A 550 MHz version of MediaGX does not exist !
If you clean the chip with acetone or other solvent the fake markings will be erased. Only the MediaGX logo will remain. 
Beneath the fake markings you will see the almost erased original markings.
For more information about MediaGX chips see:
http://www.cpushack.net/MediaGX.html
I hope you haven't spent much money on this fake. |
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Mixeur
Joined: 06 Jan 2005
Posts: 4038
Location: Sochaux, France
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
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| Posted: Tue Apr 29, 2008 6:22 pm Post subject: |
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| Qwerty wrote: | Unfortunately it's a fake. A 550 MHz version of MediaGX does not exist !
If you clean the chip with acetone or other solvent the fake markings will be erased. Only the MediaGX logo will remain.
Beneath the fake markings you will see the almost erased original markings.
For more information about MediaGX chips see:
http://www.cpushack.net/MediaGX.html
I hope you haven't spent much money on this fake. |
Hi, Qwerty, Thanks for your information. Yes, you are right and it is a fake. But it is not faked from a MediaGX with lower frequency, and it is remarked from a intel pentium. You may know this from its back.
Hi, CPUShack, please look at the following backside picture. |
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Wizzard1
Joined: 05 Nov 2006
Posts: 930
Location: Boston MA USA
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| Posted: Tue Apr 29, 2008 10:24 pm Post subject: |
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Haha even I would question that one  I'm no pro, but an Intel "i" on an Cryix processor is blasphemy! |
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Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
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| Posted: Wed Apr 30, 2008 12:33 pm Post subject: |
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550+ is rate as i.e. Athlons XP This is not a fake because you can read -S which means Pentium -S and real clock
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Wed Apr 30, 2008 1:50 pm Post subject: |
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I have a question--
What is the motivation for someone to create a fake?
It takes time and expertise to change the printing on a common modern CPU, instead of altering a collectible chip, so why do it?
Who often does this and how do they profit by it.?
I hear a lot about FAKES in the postings and I can't figure out WHY? |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Wed Apr 30, 2008 2:52 pm Post subject: |
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| johnorun wrote: | I have a question--
What is the motivation for someone to create a fake?
It takes time and expertise to change the printing on a common modern CPU, instead of altering a collectible chip, so why do it?
Who often does this and how do they profit by it.?
I hear a lot about FAKES in the postings and I can't figure out WHY? |
Easy, take a cheap slow CPU, and remark it as a faster more expensive one.
So like upping a P75 to a P90
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Cpuswe
Joined: 15 Mar 2005
Posts: 2214
Location: Karlskrona, Sweden
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| Posted: Wed Apr 30, 2008 3:07 pm Post subject: |
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All fakes (yet) are from the era of its "speed" so to say, not faked today. Take a $200 Pentium 75 and sell as a $500 Pentium 100. Katching.... $300 per chip x 5000 chips makes $1500000 profit.
http://www.chipdb.org/img-intel-pcpu3v100-sz996-fake-6327.htm
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Last edited by Cpuswe on Wed Apr 30, 2008 4:57 pm; edited 1 time in total |
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donutty
Joined: 16 Feb 2008
Posts: 1122
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| Posted: Wed Apr 30, 2008 4:49 pm Post subject: |
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Yes, it was done in the past to cash in on the advancing technology.
But now I fear it will be used to take advantage of the collectors market (normal chip + printing machine / engraver = ES = ££ for some unscrupulous seller.) |
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susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
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| Posted: Wed Apr 30, 2008 7:24 pm Post subject: |
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| Mixeur wrote: | It is interesting, because it is not written 550 MHz, but 100 Mhz.
Which is not more correct... I don't think it is FSB because FSB is 30 or 30MHz usually. If it is FSB value it is a big big overclocking ! |
I tested the chip, and found that it can run at 100MHz stably, and can also run at 133MHz, but failed at 166MHz.
It is faked from a pentium, and from the extended golden line on the up-right side of its back, I suppose it is faked from a 100MHz pentium. This is why the faker printed "CPU at 100MHz" |
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susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
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| Posted: Wed Apr 30, 2008 7:37 pm Post subject: |
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| Marcin wrote: | | 550+ is rate as i.e. Athlons XP This is not a fake because you can read -S which means Pentium -S and real clock |
Hehe, yes, I think the faker is very "responsible" , although he reprinted the chip from intel to cyrix, and used "MediaGX 550", but he also printed the real speed "100MHz" on the chip. He did not print 133 or faster speed on it.
In addition, for normal faked cpu, their backside are not dealed with carefully, but this one was also printed like normal cyrix chip.
Sometimes fakers are more like cpu designers or artists |
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susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
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| Posted: Fri May 02, 2008 6:58 am Post subject: |
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| I happened to get some interesting fake cpus, and glad to share the images here. |
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susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
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| Posted: Fri May 02, 2008 7:00 am Post subject: |
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Its back.
From its back, I suppose that it is also remarked from a pentium 100MHz. |
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