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Intel Xeon X5660 2.8GHz SLBV6 12MB 5.86 GT/s LGA1366 Six Core CPU

serversurplus
(8703)
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US $44.99
ApproximatelyAU $68.98
or Best Offer
Condition:
Used
38 available12 sold
Hurry before it's gone. 1 person is watching this item.
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Postage:
Free Standard Shipping.
Located in: Longwood, Florida, United States
Delivery:
Estimated between Wed, 13 Aug and Mon, 18 Aug to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the postage service selected, the seller's postage history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30-day returns. Seller pays for return postage.
Payments:
     Diners Club

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eBay item number:152880714591
Last updated on 07 Aug, 2025 02:49:16 AESTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...
Processor Type
Xeon
MPN
X5660
Number of Cores
6
Socket Type
LGA 1366/Socket B
Clock Speed
2.8GHz
Cooling Component(s) Included
None/Processor only
QPI Speed
4.8 GT/s
QPI
2
Intel Smart Cache
4mb
Processor Manufacturer
Intel
Brand
Intel
UPC
Does Not Apply

Item description from the seller

About this seller

serversurplus

99.4% positive Feedback•140K items sold

Joined Aug 2013
Server Surplus is a trusted provider of high-quality, refurbished enterprise hardware. Specializing in servers, hard drives, processors, and other IT components, we give new life to pre-owned ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage costs
5.0
Postage speed
5.0
Communication
5.0

Seller feedback (7,788)

All ratings
Positive
Neutral
Negative
  • i***v (290)- Feedback left by buyer.
    Past month
    Verified purchase
    We paid extra for 2-day shipping but weren’t given a tracking number to check the status. Since we didn’t know where the shipment was and it took longer than expected, we ended up buying another one elsewhere. When we expressed our frustration to the seller, they immediately apologized, refunded the entire transaction including shipping, and told us to keep the drive. Excellent customer service and a great example of taking care of the customer.
    HITACHI HDS725050KLAT80 500GB 7200RPM 3.5INC IDE/PATA (#154317629334)
  • 4***2 (221)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Outstanding seller! We had a slight issue with the purchase not having the correct bracket on the devices. I contacted the seller and he responded immediately, apologized, and immediately shipped out the correct replacement parts. Excellent communication through the entire process, and overall an outstanding purchase. Highly recommended seller! 
    49Y4240 IBM I340-T4 QUAD PORT SERVER ADAPTER E1G44HT-IBM 49Y4241 49Y4242 (#165808765657)
  • b***9 (76)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    I still need to install the drives but the seller is on top of his game when it comes to customer service. I accidentally left my old work address as my shipping address. I saw it right after I ordered so I sent a message to the seller asking if the order could be sent to my home address. I heard back that unfortunately they were shipped to the address I provided but there were options to consider. I decided to just go get them. They arrived at my house 3 days after I ordered them. EXCELLENT!
    398297088 Maxtor Diamondmax SATA 200GB Hard Disk Drive (#163014355058)
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Product ratings and reviews

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4.9
90 product ratings
  • 81 users rated this 5 out of 5 stars
  • 8 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Performs well

Reliable

Easy to install

Most relevant reviews

See all 53 reviews
  • by marcelluhorto0
    14 Mar, 2018Top favourable review

    Great bang for the buck cpu once you get past the bios issuse and compatibility.

    Make sure you have the latest bios before installing. you can get a E5540 for about $5 bucks that works with most of the factory bios for the x58 socket boards this CPU works if you want to test and update the bios before buying or run into issues with the board not posting. I had a ASUS motherboard at first that wouldn't support the X5660 but I didn't try a different bios. I'm using a Intel DX58SO Motherboard now that actually doesn't list this CPU as compatible, but with a simple update to the latest bios this CPU worked. So, 6 Cores/ 12 Threads/ 12mb L3 Cache/ 32nm/ 2.8 GHz Base Clock, but runs at about 3.1 GHz without overclocking for only $35 bucks, you can't beat that. Very happy.

    Verified purchase: YesCondition: Pre-ownedSold by: serverplus365

  • by elcaminoguy
    28 Sep, 2017

    Best Upgrade option for an X58 based System

    X58 is the Intel chipset launched in 2008 that put Intel back on the map. Until Ryzen, nothing made as much of an impact on the enthusiast PC market. But almost 10 years later it's getting long in the tooth even with recent X58 offerings like the 980 and 990X processors. The X5660 Xeon, however, is a sever CPU. That means things like 6 cores, 12 threads, TPM, VT-D, better power efficiency (and less heat) from the 32nm Westmere cores. Other than about 10 minutes of research to figure out BIOS settings you can instantly have a faster, more efficient Xeon living where your old I7 920 used to be. For me the X5660 has taken an I7 940 from 23000 to 36000 points in 3DMark Vantage with nothing more than this CPU and a BIOS upgrade. In short, best bang for your X58 upgrade buck.

    Verified purchase: YesCondition: Pre-ownedSold by: techy_parts

  • by schalazeal
    22 Aug, 2017

    Awesome Processor

    I received the Xeon within a few days though wasn't able to install it right away. Check and make sure your motherboard supports it, especially if you have an X58 board. Make sure that board has the latest BIOS. The problem I had was that I had the earliest revision of my EVGA X58 board. With that board, there was no BIOS released that would allow it to support a Xeon. I had to physically modify the motherboard, which requires micro-soldering, to allow the Xeon to work in my X58. So check and check again. If you are buying a board to go with this, go with the latest revision of that board you can find. Everything else was great!

    Verified purchase: YesCondition: Pre-ownedSold by: red-door-tech

  • by aikon_art
    09 Sep, 2016

    Big change from the XEON E5520 i used before.

    I replace both of my Xeon E5520 with these six core processors. the difference was bigger than i expected and i assume that it also has to do with the newest manufacturing technology vs my previous processors (except the Ghz increase) The installation needs a little attention and i recommend to spent 5-10$ for a good quality thermal paste and review a couple of related with the installation videos prior of any action, if this is your first time. If you have done this in the past no special treatment is needed. i recommend this upgrade as the cost is not high and the performance improvement is big - especially if you are working on 3D-cad.

    Verified purchase: YesCondition: Pre-ownedSold by: wychoi63

  • by davus-bntazm
    29 Aug, 2016

    Best value for money CPU for the X58 platform

    This CPU is literally the best value for money option out there for people with X58 motherboards. simply flash your BIOS to the latest revision using your old CPU then pop in this bad boy and now you have a cheap 6 core 12 thread 32nm beast. plus these CPUs overclock very well to since they are binned higher. i would highly recommend this CPU for people that already have an X58 system and are looking to extend its life. for those who want to build an X58 system from scratch i wouldn't recommend this CPU but would instead recommend its much cheaper 4 core 8 thread brother the E5640.

    Verified purchase: YesCondition: Pre-ownedSold by: wdd60

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