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

YJLXMB
(403)
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US $6.30
Approximately£4.76
Condition:
Used
More than 10 available9 sold
People are checking this out. 9 have added this to their Watchlist.
Popular item. 9 have already sold.
Postage:
US $2.99 (approx £2.26) eBay SpeedPAK Standard.
Located in: guangdong, China
This item includes applicable import fees – you won’t pay anything extra after checkout.
Import fees:
Includes import fees
Delivery:
Estimated between Tue, 9 Dec and Tue, 23 Dec to 94104
Estimated delivery dates - opens in a new window or tab reflect seller's dispatch time, origin postcode, destination postcode and time of order receipt, and will depend on the delivery service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods, and are an estimate only.
Returns:
30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Payments:
    Diners Club

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eBay item number:315059331419
Last updated on 28 Nov, 2025 14:25:25 GMTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been previously used. The item may have some signs of cosmetic wear, but is ...
Country of Origin
Malaysia
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
Number of Cores
4
Item Width
0.9inch
UPC
Does not apply
Category

Item description from the seller

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About this seller

YJLXMB

97.3% positive Feedback•2.5K items sold

Joined Nov 2023
Registered as a business seller
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage cost
5.0
Delivery time
5.0
Communication
5.0

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Seller Feedback (429)

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  • f***e (390)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Good price, delivery on time, happy customer
  • i***l (141)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    Fully satisfied with the received item. Matching description. Great support.
  • w***w (707)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    fast shipping and well packed was in very good condition work just fine. Thanks Robert
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Product ratings and reviews

Learn more
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

See all 82 reviews
  • by revandenberg
    28 Dec, 2017Most 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

  • by djlemasdonald
    29 Jul, 2017Most 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

  • by ghne08
    16 May, 2022

    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

  • by dachor47
    20 Nov, 2019

    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

  • by thebigdivot48
    29 Mar, 2016

    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

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