T5810 Compatible CPU E5-2666 V3

Hi,

I have a chance to buy a CPU for my 5810 but it's not on any listing I could find.  It's a e5-2666 v3.  10c/20t From what I read it was originally manufactured for Amazon.  It's only 50.00 and seems like it might be able to do my cad work and also some gaming.  I was going to install an RTX 2060 or possibly my Titan with windows 10.  Anyone have any experience with this chip?  Is it compatible with one of these work stations?

Thanks

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  • First, let me say that I am far from an expert on this topic; with that out of the way, I'm curious to get confirmation on my suspicions. I would think, from the documentation I found here (Dell 5810 data sheet) stating that these towers support up to 14 cores and the CPU you found being a 10C unit, that CPU should work. I would love to know how this worked out for you.

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  • Just found another one. E5-1681v3 same chip it looks like as the 2666 but with an unlocked multiplier. Memory 4less has them under 100 bucks us. Can't find them anywhere else. Those 2 chips were custom xeons that were made for a specific application. I can't see any reason it wouldn't work though.

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    • Rob Frank I found an E5-2643v3 for 150 and a E5-1650v3 for 110. Would you recommend either of those two over the 1681v3 for 100? Thanks in advance

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    • Rob Frank Also, would you have a link on how to find that chip on memory4less? I tried searching for it but couldn't figure out how to find it.

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      • Rob Frank
      • Rob_Frank
      • 2 mths ago
      • Reported - view

      HisMessengerDAB  depends what you need your pc for. Both the cpus you listed are nearly the same. The 1650 is what I have and it's unlocked and I've been playing with overclocking it. If you don't need the higher core count then either of those will be good. If you need more cores the chip I found seems to be a good compromise of cores and speed. I don't think I could really use 10 cores for anything but it would be cool to see how far it would overclock lol.

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      • Rob Frank
      • Rob_Frank
      • 2 mths ago
      • Reported - view
    • Rob Frank  I will use the workstation primarily as a Plex server (only having maybe like 4 people at a time using it, tops), some occasional video editing, some gaming, learning to code, and schoolwork. I would like to use extra processing power for BOINC, specifically, the IBM project focused on COVID-19 research.

      With those purposes in mind, it seems that I am in between a CPU with lower core count with higher speed (the 1650v3) or a CPU with a higher core count but a lower speed (1681v3) since they're both about the same price: 1650v3 for $110 vs 1681v3 for $98 or alternatively $57 (which I have no idea what the difference, if any, is between the $57 one and the one you posted earlier). If there's no difference between the $98 and the $57 one, then it's a no-brainer I think.

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  • Also seeing that I didn't find those chips anywhere else I would imagine that memory 4 less bought the lot of decommissioned equipment that contained them and once they are gone I'd imagine they will stay gone.

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    • Rob Frank Just a follow up, it would seem that this link (https://www.memory4less.com/intel-2-90ghz-xeon-processor-e5-1681-v3-cm8064401576003) is the same processor as the one you said you found earlier. As such, I took a leap of faith and bought it since I didn't want to miss out.

      I figure that it's better to just have the extra cores and threads with all the craziness that I want to do, hoping that the Turbo feature will kick everything up just enough to allow me to game when I feel like it. On top of that, I found a heck of a deal for 64 GB of PC4-2400 RAM on Ebay that I hope will be accepted. After that, I think I will be sitting pretty. Thank you so much for your feedback so far. If it wasn't for Green PC Gamers, I wouldn't be sitting here where I am with this huge blessing of a PC monstrosity in progress.

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      • Rob Frank
      • Rob_Frank
      • 2 mths ago
      • 1
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      HisMessengerDAB 

      Sorry I went to bed and didn't get back to you lol. Its awesome that you bought that though. There is a couple of things you can do to ensure you get the max speed out of that cpu. For a permanent solution research x99 all core turbo. This is a micro code that you remove from the bios that will let all the cores rip up the whole way. The other is to use throttle stop. Our 5810 blocks out all those settings but if you put your pc to sleep then wake it up voltage control and over clocking will be unlocked when you open throttle stop. With the tdp on that chip I suspect there would be no issue hitting 3.6ghz on all 10 cores with throttle stop. I've been playing around alot with my 1650 using throttle stop and trying to mod my bios if you would want any help configuring anything.

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    • Rob Frank This is great information. I will definitely reach out to you once I get the new CPU in the mail to get some help since this is quite a deep rabbit hole and some guidance from the beginning will likely help cut down on the learning curve.

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    • Rob Frank Ok, so I have a conundrum. They ran out of the 1681 after I had ordered them sadly. Now My options are as follow and I think the answer to this could be helpful to others as well.

      1650v3 $140
      1660v3: $149
      2643v3: $150
      1650v4: $150
      2698av3: $46 (which was a surprising darkhorse here)

      I have a comparison page here from CPU-world making it seem like the 2698a might be the best option (especially for the price) due to having 16c/32t at a reasonable price but I'm not sure. It's tough to make an objective assessment when all you have to talk with is yourself. Any thoughts? 

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    • Rob Frank Also found the following two contenders

      1686v3: $46
      1691v3: $57

      I really wish I knew more about this!

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      • Rob Frank
      • Rob_Frank
      • 2 mths ago
      • Reported - view

      HisMessengerDAB just found those as well. E5-1691v3 seems awesome.  May buy one myself. Turbo to 3.4

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    • Rob Frank So out of those 6 options, do you think that the 1691v3 might be my best bet? Thanks again for all the input on the 17,000 questions haha

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  • Really for your use the 1650v4 would probably be best especially if it's something you'll leave stock and just use it. The 1691 is total over kill but hell for the price. And I bet with throttle stop you could get a 3.8ghz all core turbo which would be plenty fast. Note if you care the e5-16xxv3 cpus can be over clocked. The e5-26xxv3 and the e5-16xxv4 cannot.

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    • Rob Frank Thanks man. That is really good information. Right now I had some issues with memory4less and how their inventory is displayed on their "store" part of their site so I'm not sure if any of those lower-priced CPUs are actually available. It turns out that their warehouse may be out of stock of something but it won't list on the product page until after an order is placed. When you place an order, the site "checks" the warehouse to see if a product is available, and then, depending on whether or not something *is* available, they may or may not cancel your order. 

      To circumvent this, one would have to contact the sales department directly as they have the most up-to-date inventory counts. I tried to purchase a bunch of different CPUs last night in hope that at least ONE of them would be available. I'll update you all once I figure out what happened. If that site all falls apart, I will consider both the 1650v4 or any of the other 16xxv3s for reasonable prices. I can't thank you enough for your input man, it's been so helpful

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      • Rob Frank
      • Rob_Frank
      • 2 mths ago
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      HisMessengerDAB 

      Not a problem. And ya let me know what happens with that site. You can be my guinea pig lol. I'm trying to stop over on this forum often because I think the value in using these systems is too great for the lack of information out there.

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