&lt;h2&gt;&lt;strong data-start=&quot;203&quot; data-end=&quot;245&quot;&gt;DELL 5521 / 3521 i7 Laptop Motherboard&lt;/strong&gt;&lt;/h2&gt;&lt;p data-start=&quot;247&quot; data-end=&quot;652&quot;&gt;The &lt;strong data-start=&quot;251&quot; data-end=&quot;293&quot;&gt;&lt;a href=&quot;https://www.dearit.com.bd/dell-5521-3521-i7-laptop-motherboard&quot; target=&quot;_blank&quot;&gt;DELL 5521 / 3521 i7 Laptop Motherboard&lt;/a&gt;&lt;/strong&gt; is a genuine replacement board built for Dell Inspiron 5521 and 3521 laptops using Intel Core i7 processors. If your old motherboard is dead, damaged, or showing performance issues, this replacement restores smooth speed, fast booting, and strong multitasking — ideal for office work, programming, online classes, multimedia tasks, and everyday productivity.&lt;/p&gt;&lt;p data-start=&quot;654&quot; data-end=&quot;1021&quot;&gt;With support for DDR3 RAM (4 GB–8 GB–16 GB depending on installed modules), the Dell i7 motherboard ensures powerful and stable performance. Integrated Intel HD Graphics delivers clear visuals suitable for movies, presentations, browsing, and light creative tasks. Engineered with durable components, it provides long-term reliability and consistent system stability.&lt;/p&gt;&lt;p data-start=&quot;1023&quot; data-end=&quot;1046&quot;&gt;&lt;strong data-start=&quot;1023&quot; data-end=&quot;1044&quot;&gt;Compatible Models&lt;/strong&gt;&lt;/p&gt;&lt;ul data-start=&quot;1047&quot; data-end=&quot;1118&quot;&gt;
&lt;li data-start=&quot;1047&quot; data-end=&quot;1083&quot;&gt;
&lt;p data-start=&quot;1049&quot; data-end=&quot;1083&quot;&gt;Dell Inspiron 5521 (i7 variants)&lt;/p&gt;
&lt;/li&gt;
&lt;li data-start=&quot;1084&quot; data-end=&quot;1118&quot;&gt;
&lt;p data-start=&quot;1086&quot; data-end=&quot;1118&quot;&gt;Dell Inspiron 3521 (i7 variants)&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;&lt;p data-start=&quot;1120&quot; data-end=&quot;1171&quot;&gt;&lt;strong data-start=&quot;1120&quot; data-end=&quot;1169&quot;&gt;Part Numbers (May include but not limited to)&lt;/strong&gt;&lt;/p&gt;&lt;ul data-start=&quot;1172&quot; data-end=&quot;1242&quot;&gt;
&lt;li data-start=&quot;1172&quot; data-end=&quot;1204&quot;&gt;
&lt;p data-start=&quot;1174&quot; data-end=&quot;1204&quot;&gt;5521 / 3521 i7 series boards&lt;/p&gt;
&lt;/li&gt;
&lt;li data-start=&quot;1205&quot; data-end=&quot;1242&quot;&gt;
&lt;p data-start=&quot;1207&quot; data-end=&quot;1242&quot;&gt;Exact part number may vary by batch&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;&lt;p data-start=&quot;1244&quot; data-end=&quot;1264&quot;&gt;&lt;strong data-start=&quot;1244&quot; data-end=&quot;1264&quot;&gt;Maintenance Tips&lt;/strong&gt;&lt;/p&gt;&lt;ul data-start=&quot;1266&quot; data-end=&quot;1564&quot;&gt;
&lt;li data-start=&quot;1266&quot; data-end=&quot;1322&quot;&gt;
&lt;p data-start=&quot;1268&quot; data-end=&quot;1322&quot;&gt;Always install using proper anti-static precautions.&lt;/p&gt;
&lt;/li&gt;
&lt;li data-start=&quot;1323&quot; data-end=&quot;1387&quot;&gt;
&lt;p data-start=&quot;1325&quot; data-end=&quot;1387&quot;&gt;Use compatible Intel Core i7 processor and DDR3 RAM modules.&lt;/p&gt;
&lt;/li&gt;
&lt;li data-start=&quot;1388&quot; data-end=&quot;1436&quot;&gt;
&lt;p data-start=&quot;1390&quot; data-end=&quot;1436&quot;&gt;Clean dust regularly to prevent overheating.&lt;/p&gt;
&lt;/li&gt;
&lt;li data-start=&quot;1437&quot; data-end=&quot;1496&quot;&gt;
&lt;p data-start=&quot;1439&quot; data-end=&quot;1496&quot;&gt;Keep BIOS and drivers up to date for maximum stability.&lt;/p&gt;
&lt;/li&gt;
&lt;li data-start=&quot;1497&quot; data-end=&quot;1564&quot;&gt;
&lt;p data-start=&quot;1499&quot; data-end=&quot;1564&quot;&gt;Avoid moisture and excessive heat to extend motherboard lifespan.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;&lt;p&gt;








&lt;/p&gt;&lt;p data-start=&quot;1566&quot; data-end=&quot;1857&quot;&gt;&lt;/p&gt;&lt;h2&gt;&lt;strong data-start=&quot;1566&quot; data-end=&quot;1607&quot;&gt;Buying Information – Dear IT Solution&lt;/strong&gt;&lt;/h2&gt;
Purchase the &lt;strong data-start=&quot;1623&quot; data-end=&quot;1665&quot;&gt;&lt;a href=&quot;https://www.dearit.com.bd/dell-5521-3521-i7-laptop-motherboard&quot; target=&quot;_blank&quot;&gt;DELL 5521 / 3521 i7 Laptop Motherboard&lt;/a&gt;&lt;/strong&gt; at the best price in Bangladesh from Dear IT Solution. We offer genuine products, fast delivery, and dependable after-sales support — ensuring your laptop runs smoothly and efficiently again.&lt;p&gt;&lt;/p&gt;