Question Prebuilt upgrade

Jun 14, 2019
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Hi guys i have a prebuilt dell optiplex 980 with i5 650, 8 gb ddr3 ram,500gb hdd an optical drive and a 305w psu. Can it fit a gigabyte gtx 750 ti 4gb windforce. I am curious if the 305w psu can properly with that card. (ps. The card has a 6pin connector)
 
depends on what version of case it has. for that model i see it comes in both a mid tower and slim. also the GPU has a 6 pin connector but does your power supply have one?

in the end though if it is a 305W PSU i doubt it will be able to supply enough power to it
 
Jun 14, 2019
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A gigabyte gtx 1050 2gb would be a better choice for that pc with this psu and the gpu could bottleneck the cpu??
 
Dec 9, 2018
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Hi! I know I'm late, hopefully not too late.
I ran a psu calculator and, assuming you have a 1050, 2 ram sticks and 1 92mm fan, the estimated load wattage would be 277w. Your psu technically enough, but this means only 90% load, whereas you want the load to be no more than 70-80%. Apart from that, I doubt a 7-8 year psu can provide the rated wattage anymore. Not to mention proprietary psu's may not even have a 6 pin cable; graphics cards with 6 pin connectors (though for 750ti may not be vital, but still important) require more than 75w (tdp of 1050), your system will need even more than 277w.

Anyway, there are some good news. I've done some research and, apparently, your motherboard has a standard 24 pin connector (unlike some prebuilts), so you can upgrade your psu to something better. But, whatever you do, do not cheap out with your psu. Stay away from $20 grey/greenish units that are not even rated 80+. There are good units for $60 (may vary in your region). Check a psu tier, like this (preferrably first 3-4 tiers)or this.
 
The 305W is the PSU Dell used in the Mini Tower cases. The real problem is it's a BTX and the GPU is going to hit something. Maybe several somethings.
The only GPU that fits those w/o modding is the ZOTAC GTX1050 Mini 2GB, or the ZOTAC GTX1050 Ti Mini 4GB. It can run off of that PSU with no problem, and it's a 2X much better card. It's a very short card, and has a single slot bracket.
Here's the truth on that PSU.
https://www.hardwareinsights.com/dell-h305p-01-power-supply-review/
Here are some links to the Zotac GTX1050.
https://www.google.com/search?q=ZOTAC+GTX1050+Mini&newwindow=1&rlz=1C1CHBF_enUS774US774&tbm=isch&source=lnms&sa=X&ved=0ahUKEwiCps_thKPjAhUxq1kKHaYODhgQ_AUIlwMoAQ&biw=914&bih=472
With a 4GB GPU get 12-16GB RAM.
The 65WGTX750 doesn't need a 6 pin PCIe and wasn't designed for 4GB RAM either. More trouble than it's worth really. People are still asking way too much for these cards. For what you save on a PSU get the better video card. It can move ahead to your next computer also.
The Dell T3400 375W PSU has the 6 pin PCIe, but I would only use that for a GTX1060/1070 card.
 

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