An update on this. I found some documentation on the HD 3470 display adapter in the Optiplex 760 user guide which seems to imply that 1920x1200 is the maximum resolution. No explanation why cards provided by DELL have lower specs than indicated by ATI for the same card. But the same user guide indicated that 2560x1600 is supported (on the DisplayPort interface) by the integrated display adapter. Surprising that the upgrade card has poorer performance, but perhaps it has some advantage in other areas. It doesn't to work using the DisplayPort to DVI-D adapter, so I am waiting for a DisplayPort to DisplayPort cable as the last way I can think of to get this option going.
Don't seem to have had too many people join in with similar problems or solutions, but in case anybody else stumbles across this thread in the future... The DisplayPort cable I was waiting on arrived today, and happily that has gotten 2560x1600 working on my Optiplex 760/Dell 3008WFP combination using the indegrated display adapter. It would appear that either the Dell DisplayPort to DVI-D adapter isnt really a dual link adapter, or 2560x1600 mode of the onboard adapter only works if the display hardware is native DisplayPort, not another 2560x1600 capable interface with an adapter. It also seems to indicate that the Dell ATI HD3470 has the reduced functionality as indicated in the Dell docs, not the capabilities indicated in the ATI docs.
I assume for performance I would be better off with an add on card (as Dell offers these as an enhancement when choosing options for a new purchase), the the question I have still to answer is what would be the best option for an add on card for my system? Clearly 2560x1600 is a requirement, and for the 960 it would need to be low profile and of compatible power consumption. Ideally passively cooled. Any suggestions? Is there any way to find out what combinations are Dell approved?
I am having problems getting 2560x1600 on my U3011 connected to an optiplex mini tower here at work. I have tried two machines, one with a radeon 3450 and one with a radeon 6350. I am using the supplied DVI-D dual link cable which was supplied with the monitor. One system has WIN 7 Pro and the other XP Pro. At home I was getting full 2560x1600 using the DP->DP cable. Else where on this forum I have seen a discussion where a 3450 has been used successfully to get 2560x1600 after the single link cable was replaced with a dual link cable. I have noticed that the output from the DMS 59 is actually DVI-I not DVI-D dual link. Is this significant
My DELL ATI HD 3470 has two DiaplyPort interfaces and no DMS 59. It was supplied with a DisplayPort to DVI cable with a dell part number of 023NVR which I have seen advertised as '023NVR | Dell Display Port DP to DVI-D', but can't find anything on the official dell site or dell documentation confirming it really is dual link DVI. My DVI-DVI cable is definately dual link DVI, so one possible explanation for what I have seen would be that the 023NVR isn't Dual DVI compatible. The only other explanation I can think of is that there is some design issue preventing DisplayPort to dual link DVI from working. My monitor docs definately say it will work 2560x1600 from either DisplayPort or Dual Link DVI. I havnt yet checked if the 3470 works in 2560x1600 if I use the DP to DP cable.
P.S. I have tested on Wondows 7 Home Professional and Debian Linux, and see the same thing on both.
Finally completed my testing, and I can confirm that the ATI HD 3470 does work in 2560x1600 mode when I use the DisplayPort-DisplayPort cable rather than the Dual link DVI cable plus the DisplayPort->DVI adapter supplied with the card. I was able to use the adapter to connect a second monitor (Dell 2407 at 1920x1200) to verify that dual head works ok. So clearly the DELL documented is incorrect in its statement of the maximum resolution for this card.
Also, whilst I can now get the desired resolution, going by the 'Windows Experience Index' for this machine, the display adapter is a serious Achilles heel for this system for both the integrated display hardware or using the Dell recommended add on (ie the ATI HD 3470).
For the integrated Intel Q45 my Optiplex gives:
Base Score: 3.5
Processor: 6.5
Memory: 6.7
Graphics: 4.3
Gaming graphics: 3.5
Primary hard disk: 5.9
With the Radeon HD 3470 upgrade the results are:
For the integrated Intel Q45 my Optiplex gives:
Base Score: 3.8
Processor: 6.5
Memory: 6.7
Graphics: 3.8
Gaming graphics: 5.5
Primary hard disk: 5.9
Interestingly, while the upgrade addresses the lack of 3D performance, the general graphics performance actually decreases so I think the benefit is a bit marginal unless you want to run dual display.
My conclusion is that this system warrants a better display adapter, The difficulty being that the system is limited to low profile cards with very modest power requirements (the SFF machine apparently only being equipped with a 235W Power Supply). The three Dell approved add on cards (PCIe x16) have power requirements of 22, 25 and 18 watts.
Anyone got any suggestions for the best card that would satisfy those requirements? I saw one suggestion of a GeForce GT 430.
digbyt42
9 Posts
0
September 15th, 2011 12:00
An update on this. I found some documentation on the HD 3470 display adapter in the Optiplex 760 user guide which seems to imply that 1920x1200 is the maximum resolution. No explanation why cards provided by DELL have lower specs than indicated by ATI for the same card. But the same user guide indicated that 2560x1600 is supported (on the DisplayPort interface) by the integrated display adapter. Surprising that the upgrade card has poorer performance, but perhaps it has some advantage in other areas. It doesn't to work using the DisplayPort to DVI-D adapter, so I am waiting for a DisplayPort to DisplayPort cable as the last way I can think of to get this option going.
digbyt42
9 Posts
1
September 20th, 2011 10:00
Don't seem to have had too many people join in with similar problems or solutions, but in case anybody else stumbles across this thread in the future... The DisplayPort cable I was waiting on arrived today, and happily that has gotten 2560x1600 working on my Optiplex 760/Dell 3008WFP combination using the indegrated display adapter. It would appear that either the Dell DisplayPort to DVI-D adapter isnt really a dual link adapter, or 2560x1600 mode of the onboard adapter only works if the display hardware is native DisplayPort, not another 2560x1600 capable interface with an adapter. It also seems to indicate that the Dell ATI HD3470 has the reduced functionality as indicated in the Dell docs, not the capabilities indicated in the ATI docs.
I assume for performance I would be better off with an add on card (as Dell offers these as an enhancement when choosing options for a new purchase), the the question I have still to answer is what would be the best option for an add on card for my system? Clearly 2560x1600 is a requirement, and for the 960 it would need to be low profile and of compatible power consumption. Ideally passively cooled. Any suggestions? Is there any way to find out what combinations are Dell approved?
spudwa
5 Posts
0
September 20th, 2011 22:00
I am having problems getting 2560x1600 on my U3011 connected to an optiplex mini tower here at work. I have tried two machines, one with a radeon 3450 and one with a radeon 6350. I am using the supplied DVI-D dual link cable which was supplied with the monitor. One system has WIN 7 Pro and the other XP Pro. At home I was getting full 2560x1600 using the DP->DP cable. Else where on this forum I have seen a discussion where a 3450 has been used successfully to get 2560x1600 after the single link cable was replaced with a dual link cable. I have noticed that the output from the DMS 59 is actually DVI-I not DVI-D dual link. Is this significant
digbyt42
9 Posts
0
September 21st, 2011 11:00
My DELL ATI HD 3470 has two DiaplyPort interfaces and no DMS 59. It was supplied with a DisplayPort to DVI cable with a dell part number of 023NVR which I have seen advertised as '023NVR | Dell Display Port DP to DVI-D', but can't find anything on the official dell site or dell documentation confirming it really is dual link DVI. My DVI-DVI cable is definately dual link DVI, so one possible explanation for what I have seen would be that the 023NVR isn't Dual DVI compatible. The only other explanation I can think of is that there is some design issue preventing DisplayPort to dual link DVI from working. My monitor docs definately say it will work 2560x1600 from either DisplayPort or Dual Link DVI. I havnt yet checked if the 3470 works in 2560x1600 if I use the DP to DP cable.
P.S. I have tested on Wondows 7 Home Professional and Debian Linux, and see the same thing on both.
spudwa
5 Posts
0
September 22nd, 2011 00:00
I'm wondering if the DMS 59 is the problem. I tried another optiplex with a 6350 card and it was no better
digbyt42
9 Posts
0
September 24th, 2011 15:00
Finally completed my testing, and I can confirm that the ATI HD 3470 does work in 2560x1600 mode when I use the DisplayPort-DisplayPort cable rather than the Dual link DVI cable plus the DisplayPort->DVI adapter supplied with the card. I was able to use the adapter to connect a second monitor (Dell 2407 at 1920x1200) to verify that dual head works ok. So clearly the DELL documented is incorrect in its statement of the maximum resolution for this card.
Also, whilst I can now get the desired resolution, going by the 'Windows Experience Index' for this machine, the display adapter is a serious Achilles heel for this system for both the integrated display hardware or using the Dell recommended add on (ie the ATI HD 3470).
For the integrated Intel Q45 my Optiplex gives:
Base Score: 3.5
Processor: 6.5
Memory: 6.7
Graphics: 4.3
Gaming graphics: 3.5
Primary hard disk: 5.9
With the Radeon HD 3470 upgrade the results are:
For the integrated Intel Q45 my Optiplex gives:
Base Score: 3.8
Processor: 6.5
Memory: 6.7
Graphics: 3.8
Gaming graphics: 5.5
Primary hard disk: 5.9
Interestingly, while the upgrade addresses the lack of 3D performance, the general graphics performance actually decreases so I think the benefit is a bit marginal unless you want to run dual display.
My conclusion is that this system warrants a better display adapter, The difficulty being that the system is limited to low profile cards with very modest power requirements (the SFF machine apparently only being equipped with a 235W Power Supply). The three Dell approved add on cards (PCIe x16) have power requirements of 22, 25 and 18 watts.
Anyone got any suggestions for the best card that would satisfy those requirements? I saw one suggestion of a GeForce GT 430.