|Listed in category:
Have one to sell?

CPU Intel Core 2 Quad Q9400 2.66GHZ LGA775 SLB6B

C $72.04
or Best Offer
Condition:
Open box
2 available
Breathe easy. Returns accepted.
Shipping:
Does not ship to United States.
Located in: Weißwasser, Germany
Delivery:
Varies
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Payments:
     Diners Club

Shop with confidence

eBay Money Back Guarantee
Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
Seller assumes all responsibility for this listing.
eBay item number:396162242912
Last updated on Jul 03, 2025 20:09:34 EDTView all revisionsView all revisions

Item specifics

Condition
Open box: An item in excellent, new condition with no wear. The item may be missing the original ...
Brand
Intel
Socket Type
LGA 775/ Socket T
Processor Model
Intel Core 2 Quad Q9400
Frequency
2.66GHz
UPC
163120877027

Item description from the seller

Seller business information

VAT number: DE 322408093
About this seller

deOPTIMUSde

99.5% positive feedback91K items sold

Joined Nov 2021
deOPTIMUS - BESTE PREISE - SUPER SCHNELLER VERSAND - WILLKOMMEN ZUM EINKAUFEN :)

Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.9
Shipping speed
5.0
Communication
5.0

Seller feedback (18,315)

All ratings
Positive
Neutral
Negative
  • y***n (35)- Feedback left by buyer.
    Past month
    Verified purchase
    Great Seller – Excellent Communication and Support! Initially, the unit I received had some issues. I contacted the seller, and they responded very quickly and professionally. They arranged a prompt replacement. The new unit works perfectly! The packaging was very secure and well-done, clearly showing care in shipping. I'm extremely satisfied with both the product and the customer service. Highly recommend this seller – trustworthy and responsive. Would definitely buy from them again!
  • y***2 (213)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    This was bought as a replacement GPU card. The card arrived very well packed and protected. The card arrived in perfect condition and installed easily with no issues and on tests is working perfectly as intended. The communication, price from this seller was excellent. I would highly recommend this seller as they take returns if their had been a issue that can happen with computer hardware. Thanks for the sweets included, It's a nice small touch that's appreciated.
  • -***- (9)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Oggetto ricevuto perfettamente corrispondente a come descritto, ben imballato, ben conservato, con tutti gli accessori di serie. Venditore molto cortese, professionale, preciso. Spedizione veloce, arrivato per tempo. Nulla da eccepire.

Product ratings and reviews

4.8
128 product ratings
  • 113 users rated this 5 out of 5 stars
  • 11 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 2 users rated this 1 out of 5 stars

Performs well

Reliable

Easy to install

Most relevant reviews

  • Top favourable review

    Core 2 Duo FTW - Fantastic Value - Runs Fast & Cool

    Had some issues getting an old system running but i'm pretty sure it was motherboard related. Chip posted first attempt. I was so nervous about purchasing this cpu used, not knowing how hard it was pushed but after the past few days i'm extremely impressed. Chip arrived pretty quickly for free shipping, arrived in a small plastic tray inside a small padded envelope that seemed to keep it protected enough, but it's not overkill by any means. But I would probably ship the exact same way. I'm extremely satisfied in the performance. My cpu runs cool, low 30's idling 47-53ish under 90-100% for an hour with a decent, beefed up stock cooler that sounds like a jet. This chip is just begging to be overclocked BUT honestly I've thrown some big games at it along with a new GTX 1050 ti (which I ...

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

  • Top critical review

    Wrong cpu

    Well I was happy to get a core 2 quad q9400 but I got a wrong CPU instead

    Verified purchase: YesCondition: Pre-OwnedSold by: xtrapcparts

  • Great CPU to upgrade an older computer.

    This CPU is great to upgrade an older computer and it performs well. I upgraded from Core2Duo E7500 to the Core2Quad Q9400 and the performance went up a lot. I put it in a Dell Optiplex 780 with a new heatsink to make it faster for a user. Just make sure you clean it and use new thermal paste and it should work well for you for basic computing or office use. I am not a gamer, but I would not expect this to work well on modern games.

    Verified purchase: YesCondition: Pre-OwnedSold by: itsellers12

  • Excellent CPU for overclocking

    I managed to overclock this CPU to (stable) 3.3GHz, which is around same as intel i5 2500 base clock. This was done using stock cooler and around 1.25-1.3V. Can't remember of the top of my head accurate values. Getting non-stock cooler would probably grant even better performance. This will also work well as a mid-high range gaming PC CPU if paired with graphics card like r9 270-280 or equivalent nvidia card.

    Verified purchase: YesCondition: Pre-OwnedSold by: jkjameskim77

  • Great upgrade for an old pc

    I had a 2 core intel cpu in a dell desktop, and came across articles where it said I could replace that with this 4 core cpu. It has worked perfectly and gave the pc some extra speed and prolonged it’s life for like $10. That’s a good deal! Shipping was very quick and well packed

    Verified purchase: YesCondition: Pre-OwnedSold by: maven_technologies