Intel Core 2 Extreme QX9300 Mobile SLB5J 2.53GHz 1066 12MB Laptop Quad-Core CPU

Refines
(243)
Seller's other items
Contact seller
US $49.23
or Best Offer
or 4 interest-free payments of $12.31 available with
Condition:
Used
More than 10 available9 sold

Additional service available

People want this. 13 people are watching this.
Breathe easy. Returns accepted.
Shipping:
Free Standard Shipping.
Located in: Wilmington, United States
Delivery:
Estimated between Fri, Nov 21 and Fri, Nov 28 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Payments:
       .
Earn up to 5x points when you use your eBay Mastercard®. Learn moreabout earning points with eBay Mastercard

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:205409217596
Last updated on Oct 16, 2025 02:17:50 PDTView 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 ...
Brand
Intel
Socket Type
Socket P
Clock Speed
2.53 GHz
Processor Model
Intel Core 2 Extreme QX9300
MPN
AW80581ZH061003
Bus Speed
1066MHz
Processor Type
Core 2 Extreme
Number of Cores
4
UPC
0675900966673
Category

Item description from the seller

About this seller

Refines

98.8% positive feedback•2.7K items sold

Joined Oct 2024
Usually responds within 24 hours
Professional notebook accessories! We offer a full range of chassis, hard drives, motherboards, keyboards, and cooling fans that are compatible with mainstream models from various brands. For models ...
See more
Visit storeContact

Detailed seller ratings

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

Popular categories from this store

See allcategories
CollectiblesCraftsMusical Instruments & GearCameras & PhotoCell Phones & AccessoriesComputers/Tablets & NetworkingToys & HobbiesBusiness & IndustrialConsumer Electronics

Seller feedback (270)

All ratingsselected
Positive
Neutral
Negative
  • a***5 (90)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Seller's logistics provider had an issue and the original package was lost, but they communicated well and quickly shipped me a new package with the correct items. Thanks for making things right even after a problem out of your control. Good customer service, and the drives were perfect.
    Reply from: refines- Feedback replied by seller refines.- Feedback replied by seller refines.
    Thank you for your trust in us! Accurate delivery, celebrating partnership. Multiple quantities can be negotiated for price, looking forward to your next purchase
    Intel Optane P4800x 375GB SSD U.2 NVME PCIE HP SSDPE1K375GAP1 Solid State Drives (#205350662419)
  • 0***d (5)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Seller offered best price , Delivered fast, drives received in good condition 0 hours, securely packed in static bag. delivered as expected.
    Reply from: refines- Feedback replied by seller refines.- Feedback replied by seller refines.
    Thank you for your trust in us! Accurate delivery, celebrating partnership. Multiple quantities can be negotiated for price, looking forward to your next purchase
    New Dell 900GB SAS 10k 2.5" 6G HDD XTH17 Seagate ST900MP0026 (#205633287169)
  • x***- (1792)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    An awesome seller with great communication & quick shipping along with packaging the mousepads well for transit. An overall excellent & easy transaction! A++👍
    FOR MSI Durable Mousepad Desk Protector Gamer 240x200x2mm Keyboard Mousepad (#205564359200)
See all feedback

Product ratings and reviews

Learn more
4.9
20 product ratings
  • 18 users rated this 5 out of 5 stars
  • 2 users rated this 4 out of 5 stars
  • 0 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 13 reviews
  • by kriegmaschinen
    Mar 11, 2021Top favorable review

    Nitrous For The M17x!

    Upgraded a M17x with this QX9300 processor as it is the fastest extreme quad with a unlocked multiplier. I have it on default on multiplier selection on bios and haven't tried any overclocking yet. Slapped on some Cruise Missile thermal paste. Runs real cool for every day computing with Windows 10 Pro, picture editing programs, video editing programs and DJ programs. I did notice a boost higher than the previous Q9100 processor. I'm happy with it. In the near future I will overclock to see what's my highest stable clock. My M17x boots Windows 10 Pro in less than 10 seconds with the QX9300, SSD, PC3 10600 8gb memory. Not BAD for a decade old laptop.

    Verified purchase: YesCondition: Pre-OwnedSold by: bestdeallaptop

  • by r3v090
    Jul 25, 2016

    Put pep back in my laptop's step

    I have an ASUS G72GX, which was originally equipped from factory with a Q9000 quad core @ 2.0ghz. Finally decided I wanted a little more for a dated machine, and bought this CPU to slap in, and I couldn't be happier. With the higher frequency and unlocked multiplier, as well as more adequate cooling, I was able to overclock my laptop to 3.06ghz with this CPU. With the overclock, the performance is great, as well as the temps.

    Verified purchase: YesCondition: Pre-OwnedSold by: celcna

  • by collectormmi
    Sep 06, 2016

    Efficient CPU Upgrade for Core 2 Duo Dell m4400 Laptop

    The Intel QX9300 was a nice upgrade for the m4400 Dell Business Laptop. This Quad Core QX9300 CPU idles quietly around 3% CPU usage, as compared with 75% with the OEM Intel p8700 CPU, or 60% with the OEM Intel Q9100 Extreme CPU. The QX9300 only supports 4 threads, as compared with 8 threads used in an Intel i7 class CPU, but it still handles most operations efficiently in both Win 7 Pro x64 and Win 10 x64 platforms.

    Verified purchase: YesCondition: Pre-OwnedSold by: weiliholly.510

  • by eodgator
    Oct 10, 2015

    Experiment

    Tried to install this CPU into a laptop with the PM965 chipset which is 800MHz and it failed miserably. I gave it great ratings because this processor was never intended to be installed in a 800MHz system.

    Verified purchase: YesCondition: Pre-OwnedSold by: adaptive_technologies

  • by seaottermarine
    Jun 21, 2020

    Good CPU for light overclocking

    Good CPU, but marketed as "open box" meaning unused. It had clear indications of thermal paste, therefor it had definitely been used. Either way it does the job well. Overclocks well.

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

More to explore :