1) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41524)
Posted 19 days ago by Profile robertmiles
I'm in a rather small apartment, not a house, and with no upstairs.

The circuit breaker panel for the whole building has about 3 dozen circuit breakers, with no room to add more. Each of the 16 apartments has one 15 amp breaker, 120 volts, for both its lights and its outlets.

Pairs of apartments share one of the 8 electric water heaters. Probably a breaker for each water heater.

All 16 apartments share one kitchen and one dining room, which use breakers not shared with the apartments.

I've seen 20 amp, 30 amp and 60 amp breakers used in other buildings; not enough access to the circuit breaker panel to check if this building does also. 240 volt circuits, using double breakers that fill the space that would otherwise be used for two single breakers, are available for high wattage appliances.

Older buildings, but seldom the newer ones, use fuses instead of circuit breakers.

Electricity for showers? We must use a different word for what you mean - our showers use only hot and cold water.
2) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41515)
Posted 21 days ago by Profile robertmiles
I thought about replacing the power supply in each computer with one of the rating of the one in the other computer, so I could make more changes without increasing the total power used.

HP offers only one wattage rating for the one currently with no problems, and I don't have sufficient information to choose one that HP does not list.

I've asked if a nearby apartment building has two circuit breakers, rather than just one, per apartment. The owner isn't sure, but plans to ask someone else.
3) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41461)
Posted 29 days ago by Profile robertmiles

I've looked into adding another circuit. The circuit breaker box does not have room for another circuit breaker, so that would be difficult and expensive. Moving to a different building that already has another circuit might be a possibility.


Talk to an electrician, they make double breakers that will fit where a single breaker does now, they take up the same space as one but are actually 2 separate circuits. My own electrician was able to do that for me and I now have 3 20amp circuits just for my pc's.

There is such a thing as drawing too much thru the whole circuit breaker box, but again your electrician can help you decide what is or is not possible.

Mine even added a 'whole house surge suppressor' so no more outlet strips with them built into it. It also means my every outlet in my house is on the surge suppressor! It was about $150 US dollars installed for me because he was in there anyway.


I already talked to an electrician. Apparently. there are no double circuit breakers available that will fit into that type of circuit breaker box.

I talked to HP today, second level technical support. He said that the motherboard used in that computer is incompatible with the GTX 750 Tis I was trying to install, and probably with all the other graphics cards that GPUGRID workunits are still able to use.

I tried a Google search for that motherboard (a Pegatron IPISB-CH2) and found many other people complaining about problems using that motherboard with GTX 700 series graphics cards, and no one reporting success doing it.

I've thought of replacing the motherboard with a newer one more likely to work with newer graphics cards, and decided that I just don't have enough information on how to match motherboards to the rest of computers to be likely to choose a suitable motherboard without buying an entire computer with the parts already matched.
4) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41448)
Posted 30 days ago by Profile robertmiles
After looking at the websites mentioned when I contacted HP last night, I decided that the person I contacted at HP last night does not know the difference between the hardware options I could have chosen when ordering that computer from HP and the hardware upgrades I could have bought and applied later, not necessarily from HP. The boss of their customer service department was asking for feedback on how the support went, so I sent that information to him this morning. I'm hoping that this will persuade HP to offer another BIOS upgrade for that model of computer that will allow booting with a GTX 750 Ti card, but I'm not sure how much to hope for this.

I've thought of another possibility to investigate - buy a new power supply for each of my desktop computers with the wattage rating of the one currently in the other computer, install those, and at the same time, swap the graphics cards between the computers. This won't increase the total power needed to run both computers, but if the other desktop will boot with a GTX 750 Ti, may allow me to resume running GPUGRID GPU workunits on the other desktop.


That brings up an interesting possibility for you...instead of doing ALL that buying and swapping how about taking the troublesome Asus card and swap it into the pc with the biggest power supply right now? If it works you have found that the 300 watt psu you are using is not big enough and you have a solution. BUT if it doesn't work then you are faced with the very real possibility that the card is just faulty.


That means that I have to stop running BOINC, or anything else, on the computer showing the problem. I've done it long enough to show that the ASUS card works in the other computer, but do not plan to make it permanent.

The graphics card in the computer with the biggest power supply needs too much power to run on the other computer, and the computer room does not supply enough power to just put a bigger power supply in the computer with the problem and still run both computers at the same time.


So the card DOES work, when you put it in the other machine with the bigger power supply, but it won't work in the machine with the smaller power supply, did I get that right so far? AND you can't put a bigger power supply in the 2nd machine because the circuits won't handle it, again right? Sounds you may be in a pickle then until you either run a new circuit for the pc that needs the bigger power supply, or put that pc somewhere else.


I've looked into adding another circuit. The circuit breaker box does not have room for another circuit breaker, so that would be difficult and expensive. Moving to a different building that already has another circuit might be a possibility.

I do not have a suitable place to move one of the computers to.

It currently looks like a BIOS update, rather than a bigger power supply, is what is actually needed. I'm looking into getting HP to produce one; the one already available does not help.

If that fails, the cheapest alternative appears to be getting each computer a new power supply with the rating of the one currently in the other computer, and when they are installed, moving the video card of the other computer to this computer and installing one of the GTX 750 Tis in the other computer.
5) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41445)
Posted 31 days ago by Profile robertmiles
After looking at the websites mentioned when I contacted HP last night, I decided that the person I contacted at HP last night does not know the difference between the hardware options I could have chosen when ordering that computer from HP and the hardware upgrades I could have bought and applied later, not necessarily from HP. The boss of their customer service department was asking for feedback on how the support went, so I sent that information to him this morning. I'm hoping that this will persuade HP to offer another BIOS upgrade for that model of computer that will allow booting with a GTX 750 Ti card, but I'm not sure how much to hope for this.

I've thought of another possibility to investigate - buy a new power supply for each of my desktop computers with the wattage rating of the one currently in the other computer, install those, and at the same time, swap the graphics cards between the computers. This won't increase the total power needed to run both computers, but if the other desktop will boot with a GTX 750 Ti, may allow me to resume running GPUGRID GPU workunits on the other desktop.


That brings up an interesting possibility for you...instead of doing ALL that buying and swapping how about taking the troublesome Asus card and swap it into the pc with the biggest power supply right now? If it works you have found that the 300 watt psu you are using is not big enough and you have a solution. BUT if it doesn't work then you are faced with the very real possibility that the card is just faulty.


That means that I have to stop running BOINC, or anything else, on the computer showing the problem. I've done it long enough to show that the ASUS card works in the other computer, but do not plan to make it permanent.

The graphics card in the computer with the biggest power supply needs too much power to run on the other computer, and the computer room does not supply enough power to just put a bigger power supply in the computer with the problem and still run both computers at the same time.
6) Message boards : Graphics cards (GPUs) : 780Ti vs. 770 vs. 750Ti (Message 41438)
Posted 32 days ago by Profile robertmiles
Robert, the custom vBIOS referred to below is for the GPU not the motherboard, so it won't help you out. Your only solution is a different motherboard/system.


A different motherboard might be an option if I can get sufficient information to choose one that will fit into that case, run with the original power supply, and work the first time I try to boot it. I have not yet found sufficient information on how to match motherboards to cases and power supplies, though.

A new computer would require rather extreme measures, such as not running it at the same time as both of my current desktops, or even moving to a different building first.
7) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41437)
Posted 32 days ago by Profile robertmiles
After looking at the websites mentioned when I contacted HP last night, I decided that the person I contacted at HP last night does not know the difference between the hardware options I could have chosen when ordering that computer from HP and the hardware upgrades I could have bought and applied later, not necessarily from HP. The boss of their customer service department was asking for feedback on how the support went, so I sent that information to him this morning. I'm hoping that this will persuade HP to offer another BIOS upgrade for that model of computer that will allow booting with a GTX 750 Ti card, but I'm not sure how much to hope for this.

I've thought of another possibility to investigate - buy a new power supply for each of my desktop computers with the wattage rating of the one currently in the other computer, install those, and at the same time, swap the graphics cards between the computers. This won't increase the total power needed to run both computers, but if the other desktop will boot with a GTX 750 Ti, may allow me to resume running GPUGRID GPU workunits on the other desktop.
8) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41433)
Posted 33 days ago by Profile robertmiles
I contacted HP, trying to get another BIOS update that allows it to boot with a GTX 750 Ti. The answer was that the motherboard of that computer is not compatible with any Nvidia-based graphics board more recent than a GTX 550i, which implies that I can no longer make that computer run GPUGRID GPU workunits.
9) Message boards : Graphics cards (GPUs) : Good and bad video card brands (Message 41431)
Posted 33 days ago by Profile robertmiles
I've now tried a second GTX 750 Ti, EVGA brand. It doesn't allow booting either, even though the EVGA specs say a 300 watt power supply is adequate.

The EVGA customer service department has a very different idea of what is going wrong, though - a BIOS that just won't handle booting with a GTX 750 Ti (any brand) installed. They pointed me to a site for downloading updates specific to this model of computer; I tried the BIOS update offered there and it made no difference.

I looked into returning the ASUS GTX 750 Ti; the online store only allows such returns within 30 days after buying them, and only for getting another board of the same model rather than returning the money.
10) Message boards : Graphics cards (GPUs) : 780Ti vs. 770 vs. 750Ti (Message 41430)
Posted 33 days ago by Profile robertmiles
I cannot increase the power usage of my GTX750Ti, unlike the 970’s.

A custom vBIOS could help. (Maxwell BIOS tweaker tool and NVflash) I would always hit a powerlimit when clocks were around 1320Mhz for GERALD's so I flashed. A lot of 750 series are set at a 38.5W hard limit . At 60W = 157% of the original BIOS power cap.

Where do I get a custom vBIOS or the software for building one? It might help with my problems trying to install a GTX 750 Ti in one of my computers - apparently the standard BIOS blocks use of all brands of GTX 750 Ti by some problem that prevents the boot procedure from paying any attention to the keyboard if a GTX 750 Ti is installed. I've already tried two different brands; both block the boot procedure at the point where keyboard input is needed to go any further.

I've already found and tried what appears to be the latest BIOS update for that computer model; no difference.


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