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RamCity guarantees 100% that all modules below are compatible with the HP/Compaq Business Desktop dc7800 Ultra Slim

RamCity 2GB CL6 200-pin SO-DIMM

Part #. BJE • DDR2-800 / PC2-6400 • CL6 • 1.8V • 16-chip 128M x8 • more info

Buy new: $105.99 $82.99

29 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 200-pin SO-DIMM

Part #. KTH-ZD8000C6/2G • DDR2-800 / PC2-6400 • 1.8V • more info

Buy new: $153.99 $119.99

24 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 200-pin SO-DIMM

Part #. KTH-ZD8000B/2G • DDR2-667 / PC2-5300 • 1.8V • more info

Buy new: $135.99 $105.99

30 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL5 200-pin SO-DIMM

Part #. BPE • DDR2-667 / PC2-5300 • CL5 • 1.8V • 16-chip 128M x8 • more info

Buy new: $105.99 $82.99

138 in Stock Free Shipping Guaranteed Compatible

RamCity 1GB CL6 200-pin SO-DIMM

Part #. CBI • DDR2-800 / PC2-6400 • CL6 • 1.8V • 16-chip 64M x8 • more info

Buy new: $92.99 $72.99

2 in Stock Free Shipping Guaranteed Compatible

RamCity 1GB CL5 200-pin SO-DIMM

Part #. BJG • DDR2-667 / PC2-5300 • CL5 • 1.8V • 16-chip 64M x8 • more info

Buy new: $95.99 $74.99

39 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 200-pin SO-DIMM

Part #. KTH-ZD8000C6/1G • DDR2-800 / PC2-6400 • 1.8V • more info

Buy new: $96.99 $75.99

6 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 200-pin SO-DIMM

Part #. KTH-ZD8000B/1G • DDR2-667 / PC2-5300 • 1.8V • more info

Buy new: $96.99 $75.99

5 in Stock Free Shipping Guaranteed Compatible

RamCity 512MB 200-pin SO-DIMM

Part #. BJH • DDR2-667 / PC2-5300 • 1.8V • 8-chip 64M x8 • more info

Buy new: $89.99 $69.99

2 in Stock Free Shipping Guaranteed Compatible

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)

Maximum Memory:

Expansion:

2 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:

AK521US; AK522US; AK530US; AK542US; AK551US; AK594US; AK619US; AK637US; AK638US; AK651US; AK652US; AK672US; AK673US; AK699US; AK715US; AK716US; AK722US; AK737US; AK745US; AK750US; AK792US; AK801US; AK808US; AK809US; AK888US; AK898US; AK908US; AK927US; AK941US; AK950US; AK959US; AL005US; AL012US; AL058US; AL069US; AL082US; AL098US; AL135US; AL176US; AL294US; AL298US; AL312US; AL330US; AL335US; AL366US; AL369US; AL370US; AL371US; AL412US; AL453US; AL458US; AL462US; AL482US; AL499US; AL502US; AL982US; AM006US; AM049US; AM054US; AM062US; AM112US; AM116US; AM145US; AM575US; AM635US; AM642US; AM662US; AM746US; AM747US; AM781US; AM792US; AM794US; AM816US; AM941US; AM944US; AM963US; AN052US; AN180US; AN256US; AN260US; AN389US; AN421US; AN438US; AN448US; AN475US; AN491US; FE026UP; FE204ES; FE645UC; FG745UC; FG866UC; FH034UP; FH035UP; FH138PA; FH139PA; FH179PA; FH180PA; FH181PA; FH182PA; FH242PA; FH248PA; FH269PA; FH656UP; FK293UC; FM688UP; FN708UC; FN824UP; GC762AV; GP449PT; GQ652AW; GQ653AW;

Upgrade Path:

Virtually any configuration up to 4GB can be reached using any combination of 1 and 2GB modules.

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RamCity guarantees 100% that all modules below are compatible with the HP/Compaq Business Desktop dc7800 Ultra Slim