Dell workstation power supply interchangability question

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bambiboom


Well, yes, all Precision T5500's have the same 875W PSU and if you bought one with a single CPU, it would still include the connections to add the second CPU. The T7500 however has a one external 5.25" bay taller case and an 1100W PSU . I don't know if the T7500 1100W PSU is larger, but looks the same in Ebahhh listings. Dell had some proprietary PSU's earlier- those odd L-shaped ones in 745 (?) Optiplex, but I think by the time the Tx500 series was designed they...
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bambiboom

bambiboom

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clutchc,

I have both a Dell Precision T3500 (Xeon X5677, 12GB, Quadro 4000, 15K SAS 300GB / WD Black 500GB) and T5500 (2X X5680 / Quadro K2200, 48GB, PERC H310> Samsung 840 /WD RE4 1TB). These have the same case and chassis- the mounting of the drives on the fold down panel and the motherboard slot covers line up is the same, and the power supplies appear to be identical in size. I suspect the T5500 875W PSU will work in a T3500.

The T5500 harness will vary as the T5500 PSU has a power takeoff to supply the 2nd CPU riser board which can have another 130W CPU, up to 24GB RAM, and runs a fan to the 2nd processor heatsink.

[On the subject of heatsinks, be sure to use the Steel /Copper pipe one that look like a model of a 60's office building and not the cast Aluminum one that looks like organ pipes.]

Precision Tx500 workstations are really good value- well made, extremely reliable, and run at modern speeds..

Cheers,

BambiBoom
 
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clutchc

clutchc

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I thought all Dell Precision T5xxx workstations used the same 875W PSU. No? I was looking for one on ebay and noticed the T5xxx PSUs all looked alike. Maybe a bad presumption on my part?
 
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cdabc123

cdabc123

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the t5500 psu should work fine you will have a extra cpu cable but their is no issue with that. one thing to be aware of is the 24pin on the t5500 is very short so the psu needs to be right next to that part of the mobo. for the t5400 the psu size looks like what they used with the optiplex meaning it will be slightly taller than a standard psu. i have no idea if the screws will line up. however if im understanding right you want to find a psu for a t3500 mobo, and the best solution to that would be to get a standard psu and use it instead. i run a t3500 mobo with a x5677 and a 750ti with a 300 watt psu
 
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bambiboom

bambiboom

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Well, yes, all Precision T5500's have the same 875W PSU and if you bought one with a single CPU, it would still include the connections to add the second CPU. The T7500 however has a one external 5.25" bay taller case and an 1100W PSU . I don't know if the T7500 1100W PSU is larger, but looks the same in Ebahhh listings. Dell had some proprietary PSU's earlier- those odd L-shaped ones in 745 (?) Optiplex, but I think by the time the Tx500 series was designed they were more standardized. Anyway, I think the T5500 PSU will work in the T3500.

Cheers,

BambiBoom

 
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Solution
clutchc

clutchc

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Thanks guys. You've been most helpful. I think I'll take a chance an order one of those Dell 875W PSUs.

My main interest in changing the PSU is to be able to run my R9-290 that requires 1 x 8-pin and 1 x 6-pin. I had the card installed temporarily... had to remove the top drive "plate" (or whatever you call that section of the swing down bracket that holds the upper drive) to allow room for the card's PCIe connectors. The case is quite narrow. The orig. 575W PSU with PCIe adapters handled the card for test purposes, but I wouldn't want to run maxed out with that PSU.

Btw, mine has the Xeon 3.2/3.4GHz W3670 6core/12 thread CPU and 24GB RAM. There must be a thousand of these Precision workstations being sold cheap right now. I see them everywhere.
 
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cdabc123

cdabc123

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socket 1366 rigs are very cheap right now however sadly the price of 1366 cpus keeps rising. my old rig was a t3500 and i loved it i only switched because I was able to get a evga sr-x for $40 off ebay and E5-2670s were only $70 at the time
 
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clutchc

clutchc

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This is my first excursion into the wonderful world of Xeons. I had to start with the older 1366 platform, because of budget. I would never have wanted to outlay the cash for one when they were new. Not poor, just cheap.
 
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cdabc123

cdabc123

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i would never buy a new xeon they have a huge "enterprise" markup and in a year or two they will sell at 1/10th the price. if you can down the road it would be interesting to get a mobo that can overclock and get that 6 core to the mid 4 ghz
 
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clutchc

clutchc

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Just a quick follow up if anyone is interested. I swapped out the Dell 525W PSU and its harness for a Dell 875W and its harness. Had to find a way to use 3 of the 5 12V rails to get enough capacity to run the Sapphire Radeon R9-290. But it posted a Firestrike score better than my i5-4690K @ 4.5 GHz: 9336 vs 9240
Had to remove the top drive bay and stick the SSD on the case floor. Next up is find a way to squeeze my MSI GTX 980 Gaming into the case and compare it with my i7-4790K.
Jf1oNUM.jpg

 
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