robbySea
1 Copper

Inspiron 3650, No Power

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Hi folks,

I can't get my Dell Inspiron 3650 mini-tower to power on. No light, no fan motor. I tried replacing the power cable and plugging directly into the wall, but no luck.

I have not installed any new hardware or software lately.

Both Windows 10 and Dell Updates are current as of October 5, 2019.

I tried holding the power button for 30 seconds, nada.

I am not sure if the machine had been on earlier and went into sleep mode or if it just wouldn't start from scratch.

I will be grateful for any help you can give.

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JOcean
5 Tungsten

Re: Inspiron 3650 No Power

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Just a short comment on buying a UPS (Uninterruptible Power Supply). I have used them for quite a number of years and they have saved my system from power surges and power losses more than once. Absolutely one of the best forms of insurance you can buy to ensure your systems safety. There are many good makes and one of the following sites can help you calculate the size you need.

https://www.apc.com/shop/ca/en/tools/ups_selector

http://powerquality.eaton.com/UPS/selector/SolutionOverview.asp

 




-Forum Member since 2016
-I do not work for Dell
-A user helping other users
-If you like an answer please click on thumbs up
-If a reply is a solution to your problem please click on Accept as Solution
Gaming on a home built ASUS B450-F Gaming with Ryzen 5 2600X
Real work on an Inspiron 15 5575
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5 Replies
7- Thorium

Re: Inspiron 3650 No Power

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Is the power supply LED on rear of PC, below the power cord socket, on or off?

Read Dell's How to Troubleshoot a No Power Issue

Your PSU has a BIST button next to the PSU LED on the rear of the PC, so be sure to read and follow section 7-iv in that article.

Ron

   Forum Member since 2004
   I am not a Dell employee

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7- Thorium

Re: Inspiron 3650 No Power

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3650 uses tiny power supply and its not upgradeable inside the unit.

You need to buy an external power supply and MODDIY adapter.

https://www.youtube.com/watch?v=SCQTj1ei3Ew

https://www.bestbuy.com/site/evga-700w-atx12v-eps12v-80-plus-bronze-power-supply-dc-dc-technology-bl...

https://www.moddiy.com/products/Dell-Inspiron-3650-PSU-Main-Power-24-Pin-to-8-Pin-Adapter-Cable-30cm...

 

There is also a guy who made his own adapter from scratch.

https://raphtec.wordpress.com/projects/dell-poweredge-t20-atx-power-supply-adapter/

The fix is ugly but it works fine.

There is a specific GTX 1060 that Fits and works. 

EVGA GeForce GTX 1060 SC GAMING, ACX 2.0 (Single Fan), 06G-P4-6163-KR,
6GB GDDR5, DX12 OSD Support (PXOC), Only 6.8 Inches

https://www.newegg.com/Product/Product.aspx?Item=N82E16814487261

 

HOWEVER you need to hack the power supply as the stock unit is too tiny and too small.  The 4 pin ATX power connection is fine but the 24 Pin needs an adapter to 8 pins. Recommended power supply is also very specific.EVGA SuperNOVA 750 B1, 80+ BRONZE 750W, 110-B1-0750-VR 

The B1 works fine.  B2 BQ G2 GS etc DOES NOT WORK.  You have to remove the stock unit and leave the new unit OUTSIDE The case because it physically does not fit inside.  Secure Boot must be OFF and Legacy CSM on.

https://www.amazon.com/gp/offer-listing/B00K85X23O/

https://www.moddiy.com/products/Dell-Inspiron-3650-PSU-Main-Power-24%252dPin-to-8%252dPin-Adapter-Ca...

https://www.youtube.com/watch?v=J81h1dHNwDk

 

https://www.youtube.com/watch?v=SCQTj1ei3Ew

 


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Upgrading a dell insiron 3650 power supply and graphics card. parts needed conversion Cable https://www.moddiy.com/products/Dell-Inspiron-3650-PSU-Main-Power-24%252dPin-to-8%252dPin-Adapter-Cable-%2830cm%29.html power supply https://www.newegg.com/Product/Product.aspx?Item=N82E16817438016 Graphics
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robbySea
1 Copper

Re: Inspiron 3650 No Power

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Hi folks,

Thanks RoHe and speedstep for your siggestions.

RoHe's post was helpful, made it possible to definitely narrow the problem down to the power supply.

Speedstep's might have been useful if I were more tech savvy and ready to spend time on hardware fixes.

However, the technician at the shop where I took my 3650 said that, due to the specific type of connector used for the power supply, implementing workarounds might create new problems.

The power supply was replaced and the unit is working fine again.

The tech told me that he has seen many 3650s with power supply problems, usually caused by overcurrents or undercurrents in the house AC. He advised me to buy an uninterruptable external power supply, which I did.

I have been using Dell computers since 1997 and have never had a power supply failure before. For my next purchase I will be sure to check on the repair records of the various models on offer.

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JOcean
5 Tungsten

Re: Inspiron 3650 No Power

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Just a short comment on buying a UPS (Uninterruptible Power Supply). I have used them for quite a number of years and they have saved my system from power surges and power losses more than once. Absolutely one of the best forms of insurance you can buy to ensure your systems safety. There are many good makes and one of the following sites can help you calculate the size you need.

https://www.apc.com/shop/ca/en/tools/ups_selector

http://powerquality.eaton.com/UPS/selector/SolutionOverview.asp

 




-Forum Member since 2016
-I do not work for Dell
-A user helping other users
-If you like an answer please click on thumbs up
-If a reply is a solution to your problem please click on Accept as Solution
Gaming on a home built ASUS B450-F Gaming with Ryzen 5 2600X
Real work on an Inspiron 15 5575
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Highlighted
7- Thorium

Re: Inspiron 3650 No Power

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@robbySea- Glad you got it sorted out.

Please mark this thread as Answered - thanks.

Ron

   Forum Member since 2004
   I am not a Dell employee

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