Abits "Outside Thermal Exhaust System"

[H2gO]

http://www.warp2search.net/images/OTES/OTES1.jpg

http://www.warp2search.net/images/OTES/OTES2.jpg


ABIT Siluro OTES on its way! (http://warp2search.net/article.php?sid=6559&mode=thread&order=0)

any comments fellas :cool:

[whetu]

clever.. not bad at all... still.. looks like you lose a pci slot

[H2gO]

true
but don't most of us have one or two PCI's to spare anyhow

*I know I do*

:D

[_N_]

hey? wasn't there another thread with the same thing where I said: it's a shame you loose another slot,
and then this thread of the same thing?

or am I going mad? :confused:

[H2gO]

Correct on both fronts their _N_


*snap*


:D

[TheChosen_1]

Hmm yes a good idea. Looks kinda cool, and also looks like a cellotapeholder.:)

[AcurA]

lol - check the link ppls....
Picture removed by a request of Abit


apart from that very nice - that be a heat pipe running to the fins?

[p01s0n_p1e]

does anyone have the pic before it got removed by abit?
i kinda missed it..:(

[AcurA]

http://forums.overclockers.co.nz/showthread.php?s=&threadid=1885
Curtosy of Harls :)
http://homepages.inspire.net.nz/~acura/pics/otes2.jpg

[p01s0n_p1e]

ah yes, very clever indeed!

*starts thinking how he could make one in design tech at school for his mx440...*

i especially like the gold colour scheme, it contrats well and looks pretty phat ;)

[Grrr!!]

The extra cooling doesn't seem to have helped the overclocking capability according to this review (http://http://www.sudhian.com/docs.cfm/id/255.sud).


The Ti4200 is supplied with a GPU core already overclocked by 10%, at 275MHz, and this must be remembered when overclocking this card. It was possible to further increase the core to 295MHz (an 18% overclock) before instabilities were encountered. At 300MHz and above, benchmarks such as 3DMark2001 would pause for several seconds whilst running, resulting in dramatically lower final scores.

The 3.6ns memory is supplied running at its rated speed of 550MHz. We weren't able to overclock this memory beyond 585MHz (a mere 6%) without seeing visual artifacts in the images, such as unwanted colored pixels and stray polygons. Visual artifacts aside, the memory was actually stable beyond 610MHz (an 11% overclock), but we do not regard an overclock with visual artifacts as being acceptable.

The highest achievable overclock was therefore 295/585MHz for the core/memory. This overclock was achieved in a closed case, with a reported case temperature of about 36 degrees C. To see whether the case temperature was a limiting factor, we removed the case cover, and the reported temperature fell to 29 degrees C. However, this only allowed us to overclock the card to 300/600MHz before either pausing or visual artifacts were observed.

Overclocking is therefore very respectable: well beyond the 250/500MHz rating of the standard NVIDIA Ti4200 card. However, this level of overclock is not unusual for the Ti4200. Previous Ti4200 cards passing through the Sudhian Media labs have achieved overclocks of 305/555 (Gainward 128MB), 290/610 (ABIT Siluro 64MB) and 290/610 (MSI 64MB) - and yet none of these cards used the OTES cooling system. The lower memory overclock on the Gainward card was due to the use of 4.5ns (444MHz) memory on 128MB Ti4200 cards.

We must therefore cautiously conclude (with our sample of only one card) that the OTES has little or no effect on the ability to overclock the Ti4200 beyond about 300/600 MHz. Other reviewers on the Internet have achieved similar results. This is somewhat surprising, as OTES is clearly a much more efficient cooling system; you only have to place your hand over the exhaust outlet and feel the blast of warm air to appreciate that. It is therefore most likely that the current limitation on overclocking the Ti4200 is not temperature, but simply the fabrication process or possibly voltage levels. It would have been nice if ABIT had provided a GPU core and memory voltage adjustment capability on the card, to see whether an increase in voltage combined with the extra OTES cooling would allow Ti4600 clock levels to be surpassed. I am also left wondering whether the addition of heat spreaders on the memory chips could have helped push the memory beyond 585MHz without image corruption.

From the point of view of overclocking, the ABIT Ti4200 OTES is disappointingly no better than most other Ti4200 cards. The cooler temperatures may enhance the stability of the overclock and the reliability and life of the OTES compared with other cards, however.

[NTBlowz]

A Triplex GF4Ti4200 will kick that Abit arse with 3.3ns ram ;)

[Ragnor]

Well maybe on the ram.. but then again as hans seemed to find in his ti4200 roundup awhile back it depends less on the ns rating and more on the brand of ram used..

Then you've got to factor in that overclocking ability has a certain degree of luck involved.. eg: if you get a core that's just plain crap for oc'ing it doesn't matter whether it's on an abit, gainward, leadtek or triplex card.. it'll still be crap