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Alan sc
Joined: 06 Jun 2009
Posts: 9
Location: Bs As - Argentina
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 Posted: Sat Jun 20, 2009 4:00 pm Post subject: Pcchips m919 faked external cache |
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Hi guys, this is my pcchips m919 ver 3.2:
Look, the traces around these chips go absolutely nowhere.
Last edited by Alan sc on Sat Jun 20, 2009 4:03 pm; edited 1 time in total |
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CPUShack
Joined: 16 Jun 2003
Posts: 7401
Location: State of Jefferson, USA
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| Posted: Sat Jun 20, 2009 4:03 pm Post subject: |
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Excellent fake lol.
Huge problem in the industry even today is 'empty chips'
a package, with no die. 99% of them come from China.
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Chiefish
Joined: 23 Sep 2007
Posts: 1363
Location: Northwest N.J. U.S.A
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| Posted: Sat Jun 20, 2009 9:54 pm Post subject: |
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Wow I never knew they made fake boards , thats just crazy 
But I guess if they will fake everything else why not boards too. 
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Neon
Joined: 04 Feb 2008
Posts: 403
Location: Dallas, Texas, USA
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Alan sc
Joined: 06 Jun 2009
Posts: 9
Location: Bs As - Argentina
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| Posted: Sat Jun 20, 2009 11:55 pm Post subject: |
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It is decorative, but looks nice 
http://www.redhill.net.au/b/b-96.html#fake-pci
| Quote: | | Best With: A photographer and a lawyer. |
But this MB can generate a 60 MHz bus speed. I use an am5x86 p75 at 180mhz (60x3 4v).
Only one of my five 5x86 can do it with stability.
Sorry my bad english. |
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JAC
Joined: 24 Jul 2005
Posts: 2919
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| Posted: Sun Jun 21, 2009 10:32 am Post subject: |
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| There could be pcb traces between the top and bottom copper layers. 4 or more layers are common. |
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Guest
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| Posted: Sun Jun 21, 2009 10:49 am Post subject: |
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I had a board with fake external cache, it was a pc chips for 486.
The chips were shorter than expected but the connections were real, would have worked with adequate chips.
I had been wondering why my 486 was slower for years, one day popping on a data sheet and a big warning on fake cache, and on a board with 512kb of cache that cyrix cpu flew like a bird... 512kb I didn't have on mine
It's not that uncommon but still amazes. |
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Alan sc
Joined: 06 Jun 2009
Posts: 9
Location: Bs As - Argentina
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| Posted: Sun Jun 21, 2009 11:08 am Post subject: |
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| But it's haven't continuity with ground, the chips and the traces are decorative. If I want use external cache, I can use a module. |
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Neon
Joined: 04 Feb 2008
Posts: 403
Location: Dallas, Texas, USA
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| Posted: Sun Jun 21, 2009 11:44 am Post subject: |
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| Alan sc wrote: | | If I want use external cache, I can use a module. |
The extra cache would be located on a separate expansion card, correct?
According to the link I posted, the cache is permanently disabled in BIOS, and the BIOS chip is soldered to the board. Therefore, you must bypass the BIOS if you want to have cache. |
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thomsonicus
Joined: 11 Dec 2007
Posts: 186
Location: Poland
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| Posted: Sun Jun 21, 2009 12:43 pm Post subject: |
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I remember those 486 boards with "WRITEBACK" cache chips. Loads of boards had them either soldered or socketed, of course non of them were working. I had a mobo that had an option to enable/disable the cache, but it was not working! Someone modded the bios and just added an option that did absolutely nothing!
Adding anything to old bioses was very easy, even I managed to mod bios on a MSI Slot-1 mobo into Polish version  Adding anything was very easy (I used modbin and something else, don't remember now), but getting it to work was a bigger problem. Nevertheless, it worked flawlessly
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doccybrown
Joined: 03 Oct 2005
Posts: 1082
Location: Germany
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| Posted: Sun Jun 21, 2009 1:09 pm Post subject: |
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Madness
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Alan sc
Joined: 06 Jun 2009
Posts: 9
Location: Bs As - Argentina
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| Posted: Sat Sep 12, 2009 3:37 am Post subject: |
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Rigth, I found a m919 cache module, and itś work corectly.
Now I have a m509 with a fake cache.
Tomorrow I add pics.
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Windmiller
Joined: 24 Jun 2005
Posts: 1589
Location: Chapel Hill, NC
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| Posted: Sat Sep 12, 2009 6:35 am Post subject: |
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| Thanks for sharing, I dint know there were fake boards either. |
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Alan sc
Joined: 06 Jun 2009
Posts: 9
Location: Bs As - Argentina
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| Posted: Sat Sep 12, 2009 9:23 am Post subject: |
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Ok, this is my pcchips m509 ver 1.2 with the half faked cache.
The intel caches are real.
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Elar
Joined: 16 Jul 2003
Posts: 441
Location: Tallinn, Estonia
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| Posted: Sat Sep 12, 2009 9:52 am Post subject: |
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| Alan sc wrote: | | The intel caches are real. |
Those "intel caches" are data buffers, part of the chipset. Only working cache you have is on slot cache module. |
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