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Intel Core 2 Quad Q9400 SLB6B 2.66GHz Quad-Core LGA 775 CPU Processors

US $7.99
ApproximatelyAU $12.27
Condition:
Used
30 available12 sold
This one's trending. 12 have already sold.
People want this. 10 people are watching this.
Postage:
Free USPS First Class Letter .
Located in: Springfield, Missouri, United States
Delivery:
Estimated between Fri, 15 Aug and Thu, 21 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:
No returns accepted.
Payments:
     Diners Club

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eBay item number:306346152030
Last updated on 23 Jul, 2025 08:20:04 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 ...
L2 Cache
6 MB
Socket Type
LGA 775/Socket T
L3 Cache
6 MB
Clock Speed
2.66GHz
MPN
BX80580Q9400
Item Length
3.14inch
Processor Type
Core 2 Quad
Brand
Intel
Manufacturer Warranty
1 Year
Item Height
0.039inch
Model
Q9400
Processor Model
Intel Core 2 Quad Q9400
Cooling Component Included
None/Processor only
Bus Speed
1333 MHz
Country/Region of Manufacture
Malaysia
Number of Cores
4
Item Width
0.9inch
UPC
Does not apply

Item description from the seller

About this seller

ibuycpumo

97% positive Feedback1.8K items sold

Joined Feb 2022
Usually responds within 24 hours

Detailed seller ratings

Average for the last 12 months
Accurate description
4.6
Reasonable postage costs
5.0
Postage speed
4.6
Communication
4.8

Seller feedback (251)

All ratings
Positive
Neutral
Negative
  • 7***7 (156)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great Seller! Item was as described, shipping was very fast and processor works great and it breathed new life into an old Optiplex 755. Thanks!
  • c***i (11)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    item works perfectly, was packaged well, and shipped quickly
    Reply from: ibuycpumollc- Feedback replied by seller ibuycpumollc.- Feedback replied by seller ibuycpumollc.
    Awesome! Glad to hear the processor worked great. Thank you for your trust in our service.
  • j***5 (10)- Feedback left by buyer.
    Past month
    Verified purchase
    arrived on time well packaged waiting to install. good condition.
See all feedback

Product ratings and reviews

4.9
105 product ratings
  • 95 users rated this 5 out of 5 stars
  • 7 users rated this 4 out of 5 stars
  • 3 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

  • Top favourable review

    One of the best socket 775 CPU's

    I replaced a Q6600 CPU with this Q9400. According to CPUBoss: "When it comes to benchmarks, the overclocked Intel Core 2 Quad Q9400 processor was able to complete the benchmark just as fast as the Intel Core i7 940 processor, which is wicked fast." But, according to UserBenchmark, the Q9400 ranks 486 out of 980 against a modern Core i9 7980XE at 1 of 980. "Considering its age it performs well in recent games'. And at a fraction ($ 13) of the cost of an i9 7980XE ($ 2.000). My (2nd) PC runs extremely well.

    Verified purchase: YesCondition: Pre-ownedSold by: gtron7

  • Top critical review

    better than what i had

    well I have a asus p5k mother board that had a 2 core duo I replaced it with the 4 core and flashed the bios and it ran windows 10 great I use the system for retro gamming

    Verified purchase: YesCondition: Pre-ownedSold by: techreuseny15

  • INTEL CORE 2 QUAD Q9400 W

    Nice Processor for a OLD 775 SOCKET, great perfomance and improves alot instead of Intel Core 2 Duo E8500, easy to install and best product.

    Verified purchase: YesCondition: Pre-ownedSold by: gift.for.today

  • Good replacement CPU for cheap

    Trying to squeeze a little more life out of a very old computer. The CPU worked as soon as I installed it. For the price, I am very satisfied. I'm still waiting to see if I can get Windows 10 to work at a usable level.

    Verified purchase: YesCondition: Pre-ownedSold by: solooper2012

  • Intel core 2 quad Q9400 2.66GHz Quad Core Socket 775 CPU 2.66/6M/1333 SLB6B

    A very easy installation into a Dell XPS420 desk top. There were no funny clitches or down loads to make it work. It was plug and play. I would recommend this upgrade.

    Verified purchase: YesCondition: Pre-ownedSold by: atomicoverload