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  1. 1 (8)
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  1. 1GB (4)
  2. 2GB (4)
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  1. Kingston (4)
  2. RamCity (4)
Speed
  1. DDR2-667 / PC2-5300 (4)
  2. DDR2-800 / PC2-6400 (4)
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  1. 240-pin DIMM (8)
CAS Latency
  1. CL5 (2)
  2. CL6 (2)
Voltage
  1. 1.8V (8)
 

RamCity guarantees 100% that all modules below are compatible with the HP/Compaq Business Desktop dc7800 SFF / CMT / MT

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Kingston 2GB 240-pin DIMM
Part #. KTH-XW4300/2G • DDR2-667 / PC2-5300 • 1.8V •  more info
Buy new: $126.99 $98.99

Ships in 7 Days Free Shipping Guaranteed Compatible

RamCity 2GB CL5 240-pin DIMM
Part #. APM • DDR2-667 / PC2-5300 • CL5 • 1.8V • 16-chip 128x8 •  more info
Buy new: $109.99 $85.99

Ships in 7 Days Free Shipping Guaranteed Compatible

RamCity 2GB CL6 240-pin DIMM
Part #. CCK • DDR2-800 / PC2-6400 • CL6 • 1.8V • 16-chip 128M x8 •  more info
Buy new: $109.99 $85.99

12 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 240-pin DIMM
Part #. KTH-XW4400C6/2G • DDR2-800 / PC2-6400 • 1.8V •  more info
Buy new: $126.99 $98.99

45 in Stock Free Shipping Guaranteed Compatible

RamCity 1GB CL6 240-pin DIMM
Part #. BUR • DDR2-800 / PC2-6400 • CL6 • 1.8V • 16-chip 64M x8 •  more info
Buy new: $92.99 $72.99

8 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 240-pin DIMM
Part #. KTH-XW4400C6/1G • DDR2-800 / PC2-6400 • 1.8V •  more info
Buy new: $96.99 $75.99

12 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 240-pin DIMM
Part #. KTH-XW4300/1G • DDR2-667 / PC2-5300 • 1.8V •  more info
Buy new: $96.99 $75.99

Ships in 7 Days Free Shipping Guaranteed Compatible

RamCity 1GB CL5 240-pin DIMM
Part #. AFB • DDR2-667 / PC2-5300 • CL5 • 1.8V • 16-chip 64x8 •  more info
Buy new: $91.99 $71.99

12 in Stock Free Shipping Guaranteed Compatible

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We guarantee your memory upgrade will be 100% compatible, or return it within 1 Whole Year for a full refund.
Need some help installing your upgrade? See our guides and videos.
System Specifications
Comments:
  • MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode.
  • If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation).
  • A 64-bit operating system is required to utilize more than 4GB of memory.
Standard Memory:
  • 1GB (Removable) or
  • 2GB (Removable) or
  • 3GB (Removable) or
  • 4GB (Removable)
Maximum Memory:
  • 4GB using a 32-bit Operating System
  • 8GB using a 64-bit Operating System
Expansion:
  • 4 Sockets
CPU/Chipset:
  • Intel Core 2 Quad Intel Q35
  • Intel Core 2 Duo Intel Q35
Bus Architecture:
  • PCI; PCI Express; SSD - SATA 2.5-inch; USB
Mfr's System P/N's:
  • AK518US; AK523US; AK526US; AK527US; AK529US; AK535US; AK536US; AK540US; AK541US; AK553US; AK554US; AK562US; AK563US; AK566US; AK568US; AK571US; AK572US; AK573US; AK574US; AK576US; AK577US; AK581US; AK582US; AK590US; AK591US; AK592US; AK595US; AK596US; AK609US; AK610US; AK611US; AK612US; AK613US; AK615US; AK616US; AK617US; AK623US; AK624US; AK631US; AK639US; AK640US; AK641US; AK645US; AK646US; AK647US; AK648US; AK649US; AK653US; AK681US; AK682US; AK683US; AK688US; AK691US; AK692US; AK693US; AK694US; AK700US; AK701US; AK702US; AK704US; AK713US; AK714US; AK717US; AK718US; AK723US; AK727US; AK728US; AK743US; AK744US; AK753US; AK762US; AK763US; AK769US; AK770US; AK774US; AK775US; AK776US; AK777US; AK778US; AK779US; AK780US; AK782US; AK783US; AK789US; AK790US; AK795US; AK799US; AK800US; AK803US; AK804US; AK805US; AK810US; AK887US; AK892US; AK893US; AK894US; AK896US; AK897US; AK909US; AK910US; AK916US; AK930US; AK932US; AK938US; AK940US; AK943US; AK945US; AK949US; AK955US; AK958US; AK960US;
Upgrade Path:
  • Virtually any configuration up to 8GB can be reached using any combination of 1GB and 2GB modules.