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

upgraderr
(87)
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US $52.18
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or 4 interest-free payments of $13.05 available with
Condition:
Used
5 available3 sold
Popular item. 3 have already sold.
People are checking this out. 3 have added this to their watchlist.
Shipping:
Free Standard Shipping.
Located in: Phoenix, Arizona, United States
Delivery:
Estimated between Sat, Dec 6 and Fri, Dec 12 to 94104
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Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:388419004943
Last updated on Jun 06, 2025 01:46:38 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
UPC
0675900966673
MPN
AW80581ZH061003
Bus Speed
1066MHz
Processor Type
Core 2 Extreme
Number of Cores
4
Category

Item description from the seller

About this seller

upgraderr

98.9% positive feedback•953 items sold

Joined Oct 2024
Usually responds within 24 hours
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Detailed seller ratings

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

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Seller feedback (89)

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  • i***s (6909)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    A+++Seller, Item as described, fast delivery !!
    Reply from: upgraderr- Feedback replied by seller upgraderr.- Feedback replied by seller upgraderr.
    Thank you for your purchase. Wishing you happiness every day. Looking forward to your next purchase
    NEW for HP 15-EF 15-DY TPN-Q222 bezel with keyboard M17184-001 M17185-001 (#388075655168)
  • -***-- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Super fast shipping. As described. Would buy from again. Great seller!
    Intel Core 2 Duo E7400 2.8 GHz 3MB 1066MHz Dual-Core LGA 775 Socket T Processor (#388418987836)
  • a***6- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Super fast shipping. As described. Would buy from again. Great seller!
    Intel Core 2 Duo T9400 SLGE5 2.53 GHz Dual-Core 6M/1066 Processor mobile laptop (#388419003323)
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Product ratings and reviews

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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

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