Question GTX 750 TI bad performance, low fps, low usage, and fps drops/ low stability

[himakuro]

Hi! today i update my gpu from gt 710 1 GB ddr3 for GTX 750 ti 2 gb ddr5, i think I would be about to get an incredible change in terms of performance, but what I saw today left me totally disappointed, I notice a totally poor performance, fps drops that although well They happened before, they were productive due to my ram, I notice instability, and that the fps in many games, instead of improving, got worse, I get more but they are ultra unstable, I think that my cpu is too poor for the gpu but I want to try to solve it, according to what I read everything was better than that old gt 710 that is surpassed by integrated . I really need help, I play games like Valorant and so on and it affects me a lot but I don't know how to solve it, for my PC, I have the "best" processor possible 🙁. The GPU use is like 44-50%, it is too low, I saved a lot to buy it and I'm really desperate.

MY PC:
INTEL QUAD Q8400
4 GB RAM DDR2 (667Mhz) (so bad, but my system doesnt support more; Optiplex 330)
GTX 750ti 2 gb ddr5
SSD 240 GB
My board supports socket lga 775, help, my board doesn't allow overclocking either...

 

[thestryker]

When you updated to the new card did you also install the current video drivers?

Generally speaking I'd expect performance at worst to be the same as it was before. It sounds as though you are running into bottlenecks being caused by DRAM and slow CPU. There's really nothing you can do about those with the equipment you have now.

 

[himakuro]

When you updated to the new card did you also install the current video drivers?

Generally speaking I'd expect performance at worst to be the same as it was before. It sounds as though you are running into bottlenecks being caused by DRAM and slow CPU. There's really nothing you can do about those with the equipment you have now.

Yes, i Update all the drivers and delete the old ones before installing the new ones completely with ddu, I even tried deblocking the GTX ones and nothing... Is there really anything that can be done? It's just that everything is running even worse than before.

 

[Bob.B]

Hi! today i update my gpu from gt 710 1 GB ddr3 for GTX 750 ti 2 gb ddr5, i think I would be about to get an incredible change in terms of performance, but what I saw today left me totally disappointed, I notice a totally poor performance, fps drops that although well They happened before, they were productive due to my ram, I notice instability, and that the fps in many games, instead of improving, got worse, I get more but they are ultra unstable, I think that my cpu is too poor for the gpu but I want to try to solve it, according to what I read everything was better than that old gt 710 that is surpassed by integrated . I really need help, I play games like Valorant and so on and it affects me a lot but I don't know how to solve it, for my PC, I have the "best" processor possible 🙁. The GPU use is like 44-50%, it is too low, I saved a lot to buy it and I'm really desperate.

MY PC:
INTEL QUAD Q8400
4 GB RAM DDR2 (667Mhz) (so bad, but my system doesnt support more; Optiplex 330)
GTX 750ti 2 gb ddr5
SSD 240 GB
My board supports socket lga 775, help, my board doesn't allow overclocking either...

How much free space is on the ssd?

Don't run unneeded background stuff.

 

[thestryker]

Yes, i Update all the drivers and delete the old ones before installing the new ones completely with ddu, I even tried deblocking the GTX ones and nothing... Is there really anything that can be done? It's just that everything is running even worse than before.

So I went looking through the technical details and it looks like on your motherboard the PCIe slot is rated for maximum 25W. This is likely the problem you're running into with the new card as the GTX 750 Ti is a 60W card.

 

[himakuro]

How much free space is on the ssd?

Don't run unneeded background stuff.

90 GB free, i don't run any background task or stuff

 

[himakuro]

So I went looking through the technical details and it looks like on your motherboard the PCIe slot is rated for maximum 25W. This is likely the problem you're running into with the new card as the GTX 750 Ti is a 60W card.

According to what I had read out there, my PC supported graphics cards of less than 75 Watts, what could I do in that case?

 

[thestryker]

According to what I had read out there, my PC supported graphics cards of less than 75 Watts, what could I do in that case?

Well I'd suggest trying to verify this is the issue first by checking with monitoring software to see if the power consumption is being measured. GPU-Z has this on the sensors tab, but anything that polls system sensors usually has the same capability.

If this does turn out to be the issue there really isn't anything you can do that doesn't involve replacing hardware.

 

[punkncat]

So I went looking through the technical details and it looks like on your motherboard the PCIe slot is rated for maximum 25W. This is likely the problem you're running into with the new card as the GTX 750 Ti is a 60W card.

I had always been of the impression that the PCI standard allowed for 75W to come through the slot and then additional with the PSU plug. Please link me to that spec sheet?

I haven't dealt with a system of that age in some time so I may very well be recalling incorrectly. Nice find on the troubleshoot front.

I was going to mention to OP that it may be worthwhile to check any paste on that GPU and perhaps thermal pad if any are installed. I kind of doubt it. The 750 ti is an aging card and so far as I am aware as far back as Nvidia still supports. I have dealt with quite a few of the small half height cards as they were a common addition to the Dell DT/half height format they sold for years. (still do just with a newer bit of hardware). Regardless, I have not had any of those, specs like 3770 + 750ti + 16GB or more of RAM play games in a way that was reflective of the hardware's known abilities. I think this is a group of issues including aged and very close margin power supplies, the small heatsink on the card alongside tiny case space, and simply just the landscape of most gaming requirements in relation to hardware that old.

 

[thestryker]

I had always been of the impression that the PCI standard allowed for 75W to come through the slot and then additional with the PSU plug. Please link me to that spec sheet?

Yeah I always thought it was a mandatory part of the spec until someone in another thread about older Dell PCs pointed out the SFF and desktop motherboards were rated for different slot power. Now it's something I check on OEM system troubleshooting.

https://downloads.dell.com/manuals/...x_desktop/optiplex-330_user's guide_en-us.pdf

 

[punkncat]

Yup, I would say that pretty much nailed this issue to the posterboard. Good find @thestryker

 

[DSzymborski]

Yeah, prebuilt motherboards are notorious for these types of PCIE slots, and it was really common to come across it in entry-level office systems of the time. Technically speaking, 75W is the maximum allowed (with 66W of +12V) rather than a requirement, as far as I recall.

 

[himakuro]

Sí, diría que eso prácticamente deja claro este problema. Buen hallazgo @thestryker

that is my PCIe only supports a maximum of 25 watts and if it exceeds me, the GPUs will not give their maximum performance? I'm not very clear

 

[thestryker]

that is my PCIe only supports a maximum of 25 watts and if it exceeds me, the GPUs will not give their maximum performance? I'm not very clear

Your new video card needs 60W to reach rated performance and your PCIe slot can only provide 25W.

 

[himakuro]

Your new video card needs 60W to reach rated performance and your PCIe slot can only provide 25W.

That makes too much sense, the only solution is directly a new PC that has a PCIe that is more than 60 watts, right? Thank you very much, I asked in many places and I finally found an answer with sense, my old gt 710 asked for very little (10-15) watts and it worked 100% by that

 

[thestryker]

That makes too much sense, the only solution is directly a new PC that has a PCIe that is more than 60 watts, right? Thank you very much, I asked in many places and I finally found an answer with sense, my old gt 710 asked for very little (10-15) watts and it worked 100% by that

Correct.

The only solution which might work in your situation would be getting a board from an Optiplex 380. I could not find any technical details, but have seen reports of people running the GTX 750 Ti on it successfully.

I'm just taking a guess that this might be possible for you to acquire for less money than a newer machine which is what I would recommend. If that is a possibility for you it also supports more DRAM so you'd be able to upgrade to 8GB potentially.