fanless 1920x1200 DVI?

NFW · Post by **NFW** » Wed Feb 01, 2006 12:06 am

I heard from a friend that most graphics cards that have one d-sub connector and one DVI connector can generally only do 1600x1200 on the DVI, and you have to use the d-sub to get 1920x1200.

Is that the case for the Asus Silencer cards as well? What about the Gigabyte 6600GT Silent Pipe? Is anyone running those @ 1920x1200 via the DVI port?

Thanks!

JazzJackRabbit · Post by **JazzJackRabbit** » Wed Feb 01, 2006 9:30 am

AFAIK officially, yes, single linked DVI is rated only up to 1600x1200, if you want higher resolutions up to 2560x1600 you need dual link DVI. However in practice many cards with a single linked DVI connector do support 1920x1200 resolution (my PNY 6800GT does). I don't know if gigabyte silentpipe or asus silent cards support it though, you'll have to go look yourself.

Post by **NeilBlanchard** » Wed Feb 01, 2006 9:45 am

Welcome to SPCR!

I think that there are cards with single DVI outputs that support wide screen resolutions and resolutions higher than 1600x1200. There are a few cards that support two DVI outputs at resolutions higher than 1600x1200:

http://forums.silentpcreview.com/viewtopic.php?t=28797

nomoon · Post by **nomoon** » Wed Feb 01, 2006 10:07 am

I'm using a Gigabyte GV-RX80L256V card in a dual monitor configuration to run:

DVI Output: 1920x1200
d-sub Output: 1600x1200

It uses the SilentPipe cooler on the ATI x800XL chip. The outout looks fine on both monitors. I love my fanless video card, fanless MB, and my fanless Ninja on the CPU!

Jason

NFW · Post by **NFW** » Thu Feb 02, 2006 12:34 am

Neil: thanks for the welcome, and for that link.

Nomoon, extra-thanks, I was hoping for first-hand reports like that.

JJR: How do you suggest I "look for myself?" The manufacturers don't give clear specs. Google searches haven't helped. I posted on the Asus forum a couple days ago but got no response. I figured this forum would be a good place to look, do you have any other suggestions?

JazzJackRabbit · Post by **JazzJackRabbit** » Fri Feb 03, 2006 6:33 am

Go to asus website and download manual, surely it will give you something. Or if you already downloaded (which I doubt) and still haven't found it, you could try asking this guy.

Chang · Post by **Chang** » Fri Feb 03, 2006 12:42 pm

To get 1920x1200 across single link DVI, you need to enable reduced blanking intervals in the drivers. The card also needs to have a TDMS transmitter that's up to spec (which may be questionable on some older NVidia cards).

For what it's worth, I'm using the fanless Gigabyte x1600 Pro to drive my LCD at 1920x1200 over DVI and my CRT at 1600x1200 over D-Sub. Best $120 I've spent to date.

tjoff · Post by **tjoff** » Sat Feb 04, 2006 3:57 pm

Just to make it clear, dual dvi is not the same thing as dual link dvi.

Dual link is simply put two regular DVI connections that fits inside _one_ DVI connector. So you can have two dual link connectors on a card with two DVI connectors.
And you can have two DVI connectors but both single link thus not be able to use a dual link monitor (at full resolution).

Also I don't think the monitors support dual link (those 'regular' 23"/24" monitors that runs 1920x1200) but that they also rely on "overclocking" your single link DVI connection.

Also, most (all?) cards have DVI-I, that means it's capable of outputting both analog and digital through the DVI port. So just because you are running 1920x1200 on your DVI port doesn't mean that you are doing it digitally (and basically thats the same thing as using the d-sub, the DVI cables are better designed though which might prevent some interference from what I know).
Although possible that monitors with both d-sub and DVI connectors only accepts DVI-D.

And as a side note, I've heard that some cards with two DVI connectors isn't equally good on both connectors but that one of them has better components and is much better at outputting high resolutions.

About checking in manuals. Since 1920x1200 is out of spec for single link DVI I don't think you will find anything useful. And eventhough most modern cards support it I think it will be hard to find official information on that it works.
Strangely though it's hard to find information from the monitor-companies that sell 23"/24" monitors about this too which isn't that fair to the customer.

fergy · Post by **fergy** » Sat Feb 04, 2006 5:14 pm

1920 x 1200 off a Gigabyte 660GT silentpipe works fine for me

~El~Jefe~ · Post by **~El~Jefe~** » Sat Feb 04, 2006 10:34 pm

matrox can be made to run passive.

pci, pci-e now and agp. I have a 550 pci that can do a nice array of dvi graphics to two monitors. It is a superb card for 2d and text work as well as photo work. Insane clarity.

NFW · Post by **NFW** » Sat Feb 25, 2006 1:13 am

Fergy, are you talking about this card?
http://www.giga-byte.com/VGA/Products/P ... T128VP.htm

tjoff, my monitor tells me that it is currently running DVI-D, but thanks for the clarifications.

An in case anyone's wondering similar things, Asus replied that none of their cards support 1920x1200 via DVI-D.

Chang: it might amuse you to know that I'm using a old OLD old nVidia card now, a geForce 4 ti. I'm told it's one of the few single-DVI cards that uses a decent TMDS, which is what got me started on this quest.

JazzJackRabbit: I downloaded the manuals, they were not helpful.

widman · Post by **widman** » Sat Feb 25, 2006 5:45 am

any ati with dvi can support 1920x1200. Matrox G550 only support DVI up 1280x1024. I don't know about geforce series but 6600 defenitely support it.

Here a person using it for Dell 2405FPW, a ATI 7500 and ATI 9250.
http://forums.hardwarezone.com/showthre ... ge=1&pp=15
http://www.ati.com/products/radeon7500/ ... specs.html

NFW · Post by **NFW** » Sat Feb 25, 2006 7:46 pm

I asked Asus specifically about 6600 and 6600GT cards that they make (their 'silencer' cards), and they said neither would do 1920x1200.

Tyrven · Post by **Tyrven** » Sun Feb 26, 2006 4:07 pm

I just purchased a HIS X1600 256MB card from NewEgg for around $150 (after rebate). There were a few criteria that lead to this decision.

1. I needed to be able to power up a 30" Cinema Display
2. I wanted the card to be quiet (passive preferred)
3. I needed it to run well in Windows Vista

While my preferred card was the NVidia 6800GT (similar pricing), no NVidia cards under $300 seem to support dual link DVI (required for higher resolutions; an absolute requirement for the 30" running at 2560x1600).

Most ATI's x1000 series will support that resolution; quite a few of their cards support dual link.

My reason for choosing the HIS board is that it comes with a 20dB fan that routes the hot air out of the chassis. I personally don't like the aesthetic of the card and it takes up two slots (grr) but it IS quiet. It also has TWO dual link DVI ports which is unheard of for < $200 cards.

The x1600 isn't the best card for gaming, but it's not horribly. I just need fast windows performance. Unfortunately, Vista doesn't have support for x1600s yet and the ATI drivers don't work great under build 5308 -- hopefully in a couple weeks that'll be resolved.

Jeremy

powergyoza · Post by **powergyoza** » Fri Mar 03, 2006 9:22 pm

I can confim that the Sapphire Radeon 9250 from NCIX can do DVI-D @ 1920 x 1200.

I think I ran into an overheating problem though. The screen blanked out intermittently for a few minutes and then complete black. I aimed a 6v Panaflo at it and works like a gem now.

Landroval · Post by **Landroval** » Fri Mar 03, 2006 9:33 pm

My friend has a Gigabyte 6800Ultra PCI-E and it works fine with DVI and 1920*1200. It's not passive though.

ahnj · Post by **ahnj** » Mon Mar 06, 2006 11:38 pm

Tyrven, According to HIS HITECH website, their X1600XT comes with one Dual-link DVI (the other is a single-link dvi) port... I'm curious if you successfully tested both ports with the ACD 30".

Dual, Dual-link DVI for $150 is indeed a steal.

I'm looking to replace my Zalman cooled nVidia Quadro FX 3400 (which has a single dual-link dvi port) and go dual, dual-link to accomidate another ACD.

Tyrven · Post by **Tyrven** » Tue Mar 07, 2006 12:57 am

Ahnj: Actually, I think you're right -- I think it IS only one Dual Link DVI port (and one regular DVI port). Also, I definitely don't think it is able to power up two thirty inch displays (even if there were two DL-DVIs).