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The best memory upgrades for your IBM Thinkcentre A61 (Type 9158) Desktop!

We've spent years amassing all the information we need to make sure you get the right memory for your IBM Thinkcentre A61 (Type 9158) Desktop. We guarantee this memory will work in your machine for the life of your machine. Your IBM Thinkcentre A61 (Type 9158) supports up to 8 GB in four slots and modules must be installed one at a time.

Install in matched pairs to utilize Dual Channel mode. Compatible with upto 800MHz modules. Mixing module speeds will default to the lowest speed. Installing more than 4GB of memory will require a 64-bit Operating System. 

	Code	OEM	Description	Capacity	Kit Of	Price	inc VAT
DIMM
	950636	41X4257	2GB 240PIN 677MHZ 64BIT NP DDR-2 DIMM 240pin DDRI	2GB	1	£28.57	£34.28	Buy
	950639	41X1081	2GB 240PIN 800MHZ 64BIT NP DDR-2 DIMM 240pin DDRI	2GB	1	£28.57	£34.28	Buy
	950635	41X4256	1GB 240PIN 677MHZ 64BIT NP DDR-2 DIMM 240pin DDRI	1GB	1	£18.40	£22.08	Buy
	950638	41X1080	1GB 240PIN 800MHZ 64BIT NP DDR-2 DIMM 240pin DDRI	1GB	1	£14.00	£16.80	Buy
	533935	41X4255	512MB 240PIN 677MHZ 64BIT NP DDR-2 DIMM 240pin DDRI	512MB	1	£10.43	£12.52	Buy
	950637	41X1079	512MB 240PIN 800MHZ 64BIT NP DDR-2 DIMM 240pin DDRI	512MB	1	£10.26	£12.31	Buy

More information about this machine

Detailed machine info Install in matched pairs to utilize Dual Channel mode. Compatible with upto 800MHz modules. Mixing module speeds will default to the lowest speed. Installing more than 4GB of memory will require a 64-bit Operating System. Is base memory removeable? y Number of memory slots 4 Number of memory banks 4 Number of modules per bank 1 Maximum installable memory 8

Original Memory Configuration

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