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34.2K Posts

June 22nd, 2015 16:00

Hi Brent1978,

Yes, that should speed things up indeed. Your Opti 780 supports SATA III, so I would recommend an SATA III compatible drive. Other than that, they're pretty much the same.

Of course you can keep the existing hard drive for data storage.

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June 22nd, 2015 20:00

I keep getting conflicting information on this computer. It looks to me like it supports only SATA II 3Gb/s. I hear a SATA III SSD will work, but only at SATA II speed. Another person told me it can handle 1600mhz ram, but it looks to me like 1060mhz tops. Where do I look to know for sure?


Sometimes manuals only go up to the parts available at the time. I don't want to spend money on faster RAM that will just work slower when I can get slower RAM cheaper and get the same result. The same goes for a SATA III SSD.

Thanks for your reply.

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June 23rd, 2015 17:00

Thanks for your reply. I did not mean to be rude. I am just getting a lot of conflicting information on this board. You should see my thread about the RAM for my system. A lot of people are confused. I look to see owners who tried RAM and how it worked for them. 

en.community.dell.com/.../19637706

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34.2K Posts

June 23rd, 2015 17:00

Sorry, you're correct. SATA II, 3.0 Gb/s.

I rely on the Crucial system scanner to verify which RAM will work. Very fast to install.

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June 25th, 2015 19:00

Does anyone have an opinion of the Intel 320 series?  I want to see if I can speed this up with a cheap used SSD. I will try to find one that is not all worn out. One guy posted a picture of the Intel software showing the drive health and lifespan.

It's king of a fun challenge to see what kind of speed I can get for the least money, but I do not want to buy junk either. Over on Tom's Hardware all the guys suggest the latest and greatest.

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44 Posts

June 28th, 2015 00:00

Is there and adapter for the type of hard drive caddy on the Optiplex 780MT? It's the type that a plastic holder holds the drive and you slide it in. I want to convert it to a 2 1/2 drive. I can't just use regular adapters for slots that have screws on the side.

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July 6th, 2015 15:00

I bought a plastic caddy for my extra slot and a 3 1/2 to 2 1/2 bay convertor and it went right in fine.

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December 2nd, 2016 23:00

Hi Brent1978. I hope you can answer this. I, too have a 780. I was thinking of a $50..00 or so SDD. Do you mind telling me what  you installed? Did you make any other changes? I hope to hear from you. Thanks, Randy.

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