PCI-rework

[B@RT]

co přesně řeší a obsahuje tato úprava V5 6000?

[ghost]

moc o tom neviem, snáď len, že po tejto úprave by karta mala šlapať bez problémov a stabilne pri každom FSAA móde (2x, 4x, 8x)

celé dielo spočíva vo výmene (priletovanie a odletovanie) pár odporov -> klikni

[ps47]

PCI rework umozni stabilne provozovat 8x FSAA

[B@RT]

no a proč to nebylo od výrobce osazeno když to je tak prosté?

[ps47]

pretoze vsetky 6000-ovky su prototypy

[Vykupitel]

PCI REWORK snizuje latenci PCIclk myslim,ze z 26ns na16ns (tak nejak) a to umoznuje stabilni praci v 8xFSAA rezimu a stabilizuje kartu jako takovou.Jedna se v podstate o preklenuti drahy pro PCIclk,ktera je na PCB moc dlouha.

Jeste ze toho Jindru Semence mame.Takze trikrat slava tomu best engineerovi co znam

[Oblak]

Vykupiteli, máš pravdu Jindro, ještě že tě máme

[-HoNY-]

...

a krom toho meni tvar signalu ze?

[no-X]

-HoNY-: jen si počti

The "PCI rework" as it is known is a fix by ex-3dfx engineer Hank Semenec to bring stability to the V6K so it can function in all modes. The rework applies to PCB versions 210-0391-001-A and 210-0391-001-A3, it also might work on other revisions but has not been tested. The fix was not suitable for production use as it disables a circuit that compensates for process shift in the VSA-100 silicon from production lot to production lot. It changes the PCI clock alignment with respect to control and data signals from the HiNT bridge to VSA-100's, it gives more setup time for the signals.

The actual hardware changes involve adding 4.7k resistors at locations RR540, R589, R717, R714 and changing the 22ohm resistors to 0 ohm resistors at the following locations – R734, R743, R735, R745. Hank indicated it took him about 60 hours of time over a 3 month period to come up with the fix and walks a fine line between working and not. Hank indicated another shift in the PCI clock as small as 1 nano-second would render the board non-functional.

The PCI rework does not work all the time, so there is a second level to it, the clock line to chip 1 has to be shortened, that is why sometime there is a wire added to the back of some boards.

Jen doufám, že mě za to někdo neukřižuje

[Ren]

Proc? Ten postup neni myslim tajny..

[no-X]

To není, ale je to z připravované (zatím neveřejné) help page pro Voodoo 5 - 6000

[B@RT]

se připravuješ na mé budoucí dotazy

[no-X]

Je to v angličtině... ty si myslíš, že já píšu v5 help-page v angličtině?

[B@RT]

no já nevim ale pokecal si s oskarem taky v angličtině

[ps47]

to nieje od oskara ale od garyho

[Oblak]

od scota sellerse

[B@RT]

a toto řeší co:
http://www.thedodgegarage.com/3dfx/triv ... v6k_21.jpg

[ghost]

a toto řeší co:
http://www.thedodgegarage.com/3dfx/triv ... v6k_21.jpg

zvyšuje výkon na dvojnásobok

[B@RT]

no že to v tvém prvním odkazu není když je to tak bezvadný
http://www.hardoverclock.org/pics/revie ... rework.jpg

[ghost]

tak nakopni nejaký on-line prekladač

The PCI rework does not work all the time, so there is a second level to it, the clock line to chip 1 has to be shortened, that is why sometime there is a wire added to the back of some boards.

*ináč vypadá to ako pekná fušerina