1) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 40965)
Posted 1 day ago by Profile robertmiles
If any of you have made a GTX 750 Ti card do GPUGRID workunits properly, what brand of GTX 750 Ti card did you use?
2) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 40956)
Posted 2 days ago by Profile robertmiles
Another brand of card might work, but it is hit or miss at that point. Good luck.


Since it uses a UEFI instead of a BIOS, I'll look for an updated UEFI instead.

Thanks.
3) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 40953)
Posted 2 days ago by Profile robertmiles
Can you remove the card and just blow it out well with a can of compressed air?

It's fairly easy to remove, and I have some cans of compressed something, so I may try that. I can't see where to aim it in the old card, though.

I'm not sure you need to stick with an HP brand power supply but that doesn't make alot of difference, except for cost, since you are case limited in your gpu options anyway. If you are unsure if another brand will work I would just stick with the known HP one that will fit.

The main reason why I am thinking of sticking with an HP power supply is that I do not have sufficient information on how to choose some other power supply that will fit that case and is also compatible with that motherboard. Also, the computer room is too close to tripping its circuit breaker to really consider a power supply with a higher rating, unless I decide to stop running both my desktops at the same time.

Since you are still having problems with the gpu have you tried plugging in a different one, or even just a cheap one in the same slot and see if the pc boots up just fine? If so you probably should be calling for a warranty replacement and just end this. If not then it could be a motherboard problem and then you have bigger problems. The one other thing I would do is unplug everything you don't need to boot up the pc, the network cable, the printer if any, the cd/dvd, anything except the hard drive, gpu, mouse and keyboard just to see if it works then. If so start plugging things back in again, when the machine is off of course, restart and see what is causing your problems.

It boots up just fine with the old GT 440, but that card easily overheats if I let BOINC use it. I don't have any other graphics cards that should work with a 300 watt power supply.

Do you have a power supply tester? It's possible the power supply isn't up to snuff anymore, have you blown it out lately too? Be extremely careful if you use a compressor to blow things out, it's very easy to over speed fans and stuff and make things worse, cans of compressed air are best.

I do not have a power supply tester or a compressor.

Yesterday, I tested the new card in my other desktop, which has a 450 watt power supply. It booted and worked properly with light use; a GPU workunit already in progress on that computer was not at a point where I considered it reasonable to test the board for CUDA or OpenCL use.

Since it appears that my computer room will not allow both upgrading the power supply and continuing to use both desktops at once, I consider it best to ask about two other possibilities I've thought of before doing much.

1. The computer where the new board works uses a BIOS and runs 64-bit Windows Vista. The computer where it doesn't work uses a UEFI instead and runs 64-bit Windows 7. Does this have anything to do which which board should work and which shouldn't?

2. Each DVI-D connector is supposed to be able to run two monitors. If the initial startup of the Asus GTX 750 Ti turns on only one of them, perhaps one of the monitors uses only the half that is not turned on, but the other monitor uses the one that is turned on. Is this reasonable? I'm thinking of buying a longer DVI-D cable so I can try the equivalent of switching the monitors.

I've thought of running a separate electrical circuit to my computer room, using a separate circuit breaker. The circuit breaker panel does not have room for another circuit breaker, or I would already be arranging that.
4) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 40943)
Posted 4 days ago by Profile robertmiles
Is this the only gpu in the machine? Wndows has a very bad habit of disabling resources that it thinks aren't being used during startup, a gpu with no monitor attached is a good example of that. A simple "dummy plug" can fix that.
http://www.overclock.net/t/384733/the-30-second-dummy-plug A second option is to plug in a 2nd monitor during the startup process and then unplug it once windows is up and running.


If there's a second GPU, it's on the motherboard and its video connector is well hidden. There's no motherboard slot suitable for adding any more. I don't have an extra monitor or room to add one.

I thought only AMD/ATI boards needed the dummy plug.

Same problem I had, call an electrician you may be able to get double breakers that put two breakers in the same slot a single breaker is in right now. I ended up getting three new 20amp circuits for my basement pc's that way.


The electrician who came to do the estimate of how much it would cost to add a second circuit should have known if double breakers were available for that type of circuit breaker panel, even if I didn't know to ask.

Buy yourself a "kill-a-watt" device, Walmart sells them for about 20 bucks US, and plug it into the wall and then plug your pc into it, this will tell you exactly how much wattage your pc is drawing. Remember though startup usually takes more wattage then the just running does. Most people upgrade their power supplies when they start gpu crunching as most pc makers put in the minimum wattage power supply they can get away with when they make a pc, it is cheaper and their profit margins are higher. There is no need to put in an 850 watt power supply for most people who will never need one if the pc is only drawing 235 watts as it comes off the line. Dell is notorious for this, they will put in a 125 watt power supply if the machine only draws 100 watts.


Not needed - the UPS I use for that computer includes the equivalent. It says that the computer uses up to 170 watts when running BOINC on 7 CPU cores and barely using the previous graphics card, which probably needs heatsink cleaning, but the heatsink is unreachable. It's a GT 440, with Nvidia specs that say it can use 65 watts. When I let BOINC use that card, it used to work but now soon overheats.

I have a gpu, or two, in almost all of my machinea and every one has had the power supply upgraded to a 750 or 850 watt one. Yes it's overkill, but you don't want to be pushing the power supply to it's limits when crunching 24/7/365 for 5 years or so. I run AMD 7970 gpu's and Nvidia 760 gpu's.


The computer's from HP, so I assume they used an adequate power supply for the previous video card; the new video card uses 5 watts less. I'll consider upgrading the power supply if I can first get another circuit added. Probably only to 450 watts though, since HP provides a part number for a suitable 450 watt power supply, but no higher. The computer's frame doesn't leave enough room to use an GTX 760.
5) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 40934)
Posted 4 days ago by Profile robertmiles
I now have an Asus GTX 750 Ti card. It's now 4 months after I bought it, and it still doesn't work. The first two months, I didn't have the right type of power cable ready. The third month, I found that the VGA output was disabled at initial startup, so my monitor wouldn't allow me to see anything. I then found a DVI-D connector on my monitor, so I ordered a DVI-D cable. The fourth month, it would display a picture for about one minute on bootup, then go black, but would ignore the keyboard input needed to make the bootup proceed, so I suspect that it somehow stopped the bootup from reaching the point where the keyboard could be used.

Asus provides a number to call for graphics board problems, but not a toll-free number, so I'm likely to have a significant next telephone bill (perhaps two hours on hold).

Their technical support department insists that their GTX 750 Ti uses far more power than the Nvidia specs call far - 350 watts compared to 60 watts, and therefore need a power supply with a greater wattage than the Nvidia specs call for to run the whole computer (650 compared to 300). My computer room doesn't have that much extra power available; it's probably already sometimes using more than enough to trip the circuit breaker if there was no time delay to smooth out the peaks. I've asked about running another circuit to my computer room; the circuit breaker panel has no room for another circuit breaker, so that's not reasonable.

I've already found two more users on Primegrid who've had severe problems using Asus boards.

How many other users here are having severe problems using Asus boards? How many are getting them to work well? Is the ratio of these two bad enough that we need to consider Asus boards about as bad as Dell computers?

What other brands of graphics boards work well? It looks like I'll have to buy another GTX 750 Ti card, but of a different brand, to get one of my computers doing GPU workunits again.
6) Message boards : Graphics cards (GPUs) : NVidia GPU Card comparisons in GFLOPS peak (Message 40221)
Posted 67 days ago by Profile robertmiles
The single-width Galaxy GTX 750 Ti Razor is a new one on me!

My mobo has six PCIe slots, and with two double-width GPUs installed I have two spare single slots. Or perhaps I should sell my two GPUs and install six of these??!!

I don't find them on sale Stateside, neither amazon.com nor newegg.com, but amazon UK and France have them, albeit quite expensive.

Any experience of this GPU out there?


I have no experience with them, but something you should check: Is there adequate space between the single slots that all 6 cards can get adequate air for cooling?

Also, this card appears to be designed to blow air around within the case, rather than blowing it out of the case. Graphics cards designed that way tend to run hotter.
7) Message boards : Graphics cards (GPUs) : NVidia GPU Card comparisons in GFLOPS peak (Message 39497)
Posted 102 days ago by Profile robertmiles
Not sure about installing the GPU without using a 6-pin connector, but in theory it should work. Until you started crunching it would not need much power and you could always power cap it using MSI Afterburner (or similar) before launching Boinc.

You would need 2 free molex sockets for this,
http://www.amazon.com/StarTech-com-6-Inch-Express-Adapter-LP4PCIEXADAP/dp/B0007RXDDM/ref=sr_1_1?s=electronics&ie=UTF8&qid=1421399317&sr=1-1&keywords=molex+to+6-pin


That may be PART of a solution. There are no free molex sockets.

After writing my request, I decided to check newegg.com and found that they have enough variety in their internal power cables and adapters that I may be able to put together a five-part solution from items they sell, after I check the computer again to make sure what type of connectors are used on the hard drive power cables.
8) Message boards : Graphics cards (GPUs) : NVidia GPU Card comparisons in GFLOPS peak (Message 39489)
Posted 102 days ago by Profile robertmiles
Thanks. It looks like a GTX 750Ti is currently the best replacement for my GT440; anything higher would require a new PSU and would probably trip the circuit breaker frequently.

This may change when more 900 series boards become available.

Most GTX750Ti's have a 6-pin power connector, so while they are rated as 60W TDP I expect many can use more power, if it's available. What's actually observed while crunching is key. This may throw/skew the performance/Watt rating substantially. Different card versions are built & tuned by manufacturers in different ways, some aim for efficiency, some for performance and some for cost.

If you do go for a GTX750Ti make sure you get a 2GB version and keep an eye on it's power usage; you can always force the GPU to run at a lower clock to use less power.


Will a GTX750Ti (2GB) run without anything connected to the 6-pin power connector if I don't try to make it run faster than usual?

I bought one and tried to install it, but found that the computer doesn't have any power connectors that aren't already in use.

Do you know of any source of power cable splitters that would allow me to have a hard disk and the GTX750Ti share a power cable from the PSU? Probably also a few extenders for such power cables. Needs to be a source that will ship to the US.

Also, is there any comparison available for the crunch rates of a GTX750Ti and a GTX560? If the GTX750Ti has a high enough crunch rate, I'm thinking of moving nearly all my GPUGRID work to the GTX750Ti on one computer, and all my BOINC GPU work requiring double precision to the computer with the GTX560.
9) Message boards : Graphics cards (GPUs) : NVidia GPU Card comparisons in GFLOPS peak (Message 39310)
Posted 123 days ago by Profile robertmiles
Thanks. It looks like a GTX 750Ti is currently the best replacement for my GT440; anything higher would require a new PSU and would probably trip the circuit breaker frequently.

This may change when more 900 series boards become available.
10) Message boards : News : Happy holiday season (Message 39300)
Posted 124 days ago by Profile robertmiles
Unsent work units are running out. I really need to know what to expect because my computers will be left unattended during the break.


My advice is to pick another GPU project which is of secondary importance to you, like Asteroids@home, subscribe to it, and then set it to 0 priority. That way, BOINC will only take a work unit if GPUgrid is empty..


Asteroids@home is currently offline, and therefore not a suitable choice.

Poem@Home has both CPU and GPU workunits, and is a better choice based on what they do.


Next 10