Dell Precision T3620 CPU and PSU upgrade Questions

Question

I am currently running a Dell T3620 with a i5-6500, Standard Dell PSU 290 watts, GPU GeForce RTX 2060 S and 32 gig of Ram. I use this for X-plane 12 flight simulator.  Every now and then the frame will freeze and x-plane will crash.  Especially on long flights. I checked and the GPU I have recommends at least 500 watts.  My system only has 290 watts. I want to upgrade to the i7-7700k and find a suitable PSU with greater wattage.  The Dell T3620 mother board does not support the usual 24 pin connector so this limits what PSU's I can use.   Question 1:  Is there a PSU made that would correctly support the GPU with a 500+ watt PSU that I can use with my Dell mother board and system. Question 2:  As an alternative, Dell makes a 365 watt PSU that was sold with some of the T3620 units.  This PSU has 3 connectors, my current PSU only has 2.  Is this PSU useable on my T3620, and if so where does the extra connector connect?

Chino de Oro · Accepted Answer

It's up to you but picking a good PSU can help with a smooth upgrade and avoid big headache. I suggest to get name brands like Seasonic Focus . Other quality name is SilverStone or the new ATX 3.0

As for your questions:

1. The suggested ATX PSU are modular, which means you will connect only the needed cables. The included instruction will tell you which cable to use but yes, the new PSU will have dedicated cable(s) for your RTX 2060. Often called PCI-E or PEG. You may use the linked PSU to learn more from description.

2. Yes, you can upgrade to an i7-7700k, however, the motherboard does not have BIOS feature for overclocking.

3. The main upgrade that requires most power is graphics card. A 320w RTX 3080 will need 700w PSU and you are ready for it. For bonus upgrade, your machine is thunderbolt ready (with header). For storage upgrade, beside two hard drive cage on bottom, your case also has 5.25 drive cage on top. It can be used for multi-drives dock with backplane.

Don't know which area markets you can access to. Links to Amazon are provided for referencing only.

Chino de Oro · Answer

1. Yes, you can use a standard ATX PSU in your machine with 24 pin to 8 pin adapter. A 850w is suggested as it can handle most expansion in your T3620. Choose a 140 mm depth unit and it will fit just like OEM.

2. The OEM 365w is Dell part 07VK45, which has a 6-pin power connector to use for graphics card such as a Quadro M4000.

Bmsamuel68 · Answer

Chino,   Thanks so much, I will opt for an 850w expansion and I have ordered the 24 to 8 pin adapter.   But this brings up some more questions.     1. Currently my 290 watt unit PSU has only two connectors that connect to the motherboard (4 pin connector for CPU and 8 pin connector).  Power is distributed from the motherboard to all other peripherals.  For the ATX 850w PSU, can I connect one of the connectors coming off the PSU directly to my  GeForce RTX 2060 S GPU?  if so which one?   2.  As part of this upgrade, I'm going to replace my i5-6500 CPU with a with a i-7700k CPU, which I believe is the best CPU my mother board can handle?  Is this correct?   3. Based on you comment regarding the 850w ATX PSU being good for expanison, What other upgrades for my T3620 (besides maxing out the RAM) would you suggest?  By my understanding expansion of this Dell motherboard is pretty limited?

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