The Dell OptiPlex 745c uses DDR2 DIMM PC2-6400 800MHz, PC2-5300 667MHz, PC2-8500 1066MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type DDR2 DIMM PC2-6400 800MHz, PC2-5300 667MHz, PC2-8500 1066MHz
Base Memory
Upgrade Slots 4
Maximum Memory 8GB
Maximum Module Size 2GB
CPU & Chipset ~
Bus Architecture ~
Part Number 53.5C7
667MHz 240pin CL7
In Stock
$5.99
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Part Number 531C7
667MHz 240pin CL7
In Stock
$7.99
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Part Number 541C7
800MHz 240pin CL7
In Stock
$7.99
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Part Number 53.5C7H
667MHz 240pin CL7
In Stock
$8.99
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Part Number 53.5C7-2
667MHz 240pin CL7
In Stock
$10.99
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Part Number 531C7H
667MHz 240pin CL7
In Stock
$12.99
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Part Number 541C7H
800MHz 240pin CL7
In Stock
$12.99
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Part Number 531C7-2
667MHz 240pin CL7
In Stock
$15.99
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Part Number 532C7
667MHz 240pin CL7
In Stock
$15.99
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Part Number 541C7-2
800MHz 240pin CL7
In Stock
$15.99
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Part Number 542C7
800MHz 240pin CL7
In Stock
$15.99
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Part Number 53.5C7-2H
667MHz 240pin CL7
In Stock
$17.99
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Part Number 531C7-2H
667MHz 240pin CL7
In Stock
$24.99
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Part Number 532C7H
667MHz 240pin CL7
In Stock
$24.99
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Part Number 541C7-2H
800MHz 240pin CL7
In Stock
$24.99
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Part Number 542C7H
800MHz 240pin CL7
In Stock
$24.99
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Part Number 532C7-2
667MHz 240pin CL7
In Stock
$30.99
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Part Number 542C7-2
800MHz 240pin CL7
In Stock
$30.99
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Part Number 532C7-2H
667MHz 240pin CL7
In Stock
$49.99
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Part Number 542C7-2H
800MHz 240pin CL7
In Stock
$49.99
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Part Number SSD/64G
Call to Order
$99.99
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Part Number 552C7-2
1066MHz 240pin CL7
Call to Order
$117.99
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Part Number SSD/32G
Call to Order
$139.99
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Part Number SSD/64GH
Call to Order
$159.99
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Part Number 552C7-2H
1066MHz 240pin CL7
Call to Order
$189.99
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Part Number SSD/32GH
Call to Order
$224.99
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Part Number SSD/128G
Call to Order
$263.99
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Part Number SSD/256G
Call to Order
$402.99
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Part Number SSD/128GH
Call to Order
$424.99
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Part Number SSD/256GH
Call to Order
$649.99
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Part Number SSD/512G
Call to Order
$929.99
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Part Number SSD/512GH
Call to Order
$1499.99
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Part Number 532C7-2
667MHz 240pin CL7
In Stock
$30.99
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Part Number 542C7-2
800MHz 240pin CL7
In Stock
$30.99
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Part Number 532C7-2H
667MHz 240pin CL7
In Stock
$49.99
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Part Number 542C7-2H
800MHz 240pin CL7
In Stock
$49.99
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Part Number 552C7-2
1066MHz 240pin CL7
Call to Order
$117.99
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Part Number 552C7-2H
1066MHz 240pin CL7
Call to Order
$189.99
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Part Number 531C7-2
667MHz 240pin CL7
In Stock
$15.99
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Part Number 532C7
667MHz 240pin CL7
In Stock
$15.99
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Part Number 541C7-2
800MHz 240pin CL7
In Stock
$15.99
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Part Number 542C7
800MHz 240pin CL7
In Stock
$15.99
View Product
Part Number 531C7-2H
667MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 532C7H
667MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 541C7-2H
800MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 542C7H
800MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 531C7
667MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 541C7
800MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 53.5C7-2
667MHz 240pin CL7
In Stock
$10.99
View Product
Part Number 531C7H
667MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 541C7H
800MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 53.5C7-2H
667MHz 240pin CL7
In Stock
$17.99
View Product
Part Number 53.5C7
667MHz 240pin CL7
In Stock
$5.99
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Part Number 53.5C7H
667MHz 240pin CL7
In Stock
$8.99
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Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
No Part Information Currently Available