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16 Posts

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August 3rd, 2022 13:00

Dell precision T3500 motherboard failure?

Hello,

I have owned this T3500 for about 4 years, and worked perfectly until I recently installed a GTX 1660 Super. Previously I had used a GTX 1060 for about 8 months with zero issues. At first, the PC ran fine with the 1660 Super, ran heaven benchmark and no crashes. The next morning 4 out of 6 of my RAM sticks failed. Recognized - but hardware reserved  (I should note this RAM is a different brand). The PC still booted into windows with 4gb in single channel but worked and seemed pretty stable. Then about 2 weeks after the PC started blue screening after 2-3 minutes in windows the PC would restart, and 2-3 minutes later would bluescreen again.

I suspect the GTX 1660 has somehow fried the Motherboard. I don't see visual damage though. I should mention I am running it through a 6 to 8 pin adapter and the PSU is stock 525w, but I've seen many users running a similar setup with no problems.

I've considered buying new RAM but not sure if this would help if the motherboard is damaged and would rather save the money. 

Any ideas or suggestions are much appreciated, 

4 Operator

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1.1K Posts

August 4th, 2022 01:00

Hello,

Have you tried F10 at boot, and load the diagnostic screen to run tests ?

1 Rookie

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16 Posts

August 4th, 2022 01:00

Thanks a lot for your response 

Is there a way I can verify the PSU is faulty, such as the LEDs or in BIOS? 

1 Rookie

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16 Posts

August 4th, 2022 01:00

I’ll try that as soon as I can , thanks for your reply 

9 Legend

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47K Posts

August 4th, 2022 01:00

 

@chapig_396 

Given the over 15 year age of this unit the problem is more likely power supply.

Replace PSU with EVGA 850B power supply.

Whatever unit you choose it MUST HAVE  150w TO 225w COMBINED for 3.3v/5v rails.

EVGA 110-BQ-0850-V1 B01FYDUCA0

Smaller units 450 550 650 750 will not have enough power on those rails and therefore WILL NOT WORK.   Even some vendors 1000W units fail to meet that spec with 100 to 120W max on those rails and 20 to 25 amps on those rails vs Dell 30 AMPS on those rails.

EVEN Dell 305W units have that spec.

Dell 875W has 225W  32 Amps 5v and 30 Amps 3.3v

DELL875.jpg

Note 3.3v/5v specNote 3.3v/5v spec

4 Operator

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1.1K Posts

August 4th, 2022 01:00

9 Legend

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47K Posts

August 4th, 2022 02:00

@chapig_396 

The PSU is dying but not dead so unless you have a $10,000 tester or $2000 oscilloscope You aren't likely to "see" anything.  The recommended power supply has a 5 year warranty and will work with all dell models that utilize standard EPS12v  80 percent efficient PFC power supply. You can use it  on any new system.  Cost of this unit is less than the cost of onsite repair and it will be usable in the future.

EVGA 850 B 80+ 850W, Semi Modular, 5 Year Warranty

https://www.evga.com/Products/Product.aspx?pn=110-BQ-0850-V1

Buy retail or amazon or direct from evga as these are often counterfeited.

110-BQ-0850-V1110-BQ-0850-V1

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