rational computers technology

Is your laptop screen flickering, showing lines, or blinking after small fall or keke bump for Port Harcourt? Screen go white, then show lines when you move lid? This na common for Rumuola this Saturday - 2 laptops this week na same issue. Keke shake + loose hinge make screen cable (LVDS cable) shift for hinge joint. If you continue to open/close, e go cut totally and screen go black. What NOT to do: No press screen or twist lid to make lines clear - you go spoil screen wey cost ₦65k. How we fix am at Rational Tech, Rumuola: 1. FREE 10-min test - We connect external monitor to confirm if na screen or cable. If external show clear, na cable. 2. Reseat cable - Open hinge, reseat LVDS cable for motherboard and back of screen, clean dust - ₦8k 3. If cable don cut - Replace original cable from ₦25k-₦35k depend on HP/Dell/Lenovo 4. If screen don crack from fall - Original screen replacement from ₦45k with 1 month warranty 5. We tighten hinge FREE so e no happen again Time: 45 mins - 1 hour, ...

Storage technology has evolved dramatically over the past decade. Choosing between a traditional Hard Disk Drive (HDD), a SATA Solid State Drive (SSD), and a modern NVMe SSD comes down to speed requirements, budget, and capacity needs. 1. Hard Disk Drives (HDD) Hard Disk Drives store data mechanically on spinning magnetic platters. A read/write head moves across the platter to access files. * Pros: Highly cost-effective per Gigabyte; ideal for high-capacity archiving (4TB+). * Cons: Slow read/write speeds (100–150 MB/s), sensitive to physical impacts, and noisy during operation. * Best Used For: Mass storage of cold data, family photos, video backups, and media servers. 2. SATA Solid State Drives (SSD) SATA SSDs use non-volatile flash memory to store data, removing mechanical moving parts entirely. They connect via the traditional SATA interface originally designed for hard drives. * Pros: Fast read/write speeds (500–550 MB/s), completely silent, durable, and energy-efficient. * Cons: ...

When shopping for a computer processor, two main specifications dominate the spec sheet: core count and clock speed (measured in GHz). Understanding how these two metrics work together is essential for choosing the right system for your workload. Understanding CPU Clock Speed Clock speed, measured in Gigahertz (GHz), indicates how many calculation cycles a single processor core can execute in one second. A CPU rated at 3.5 GHz can perform 3.5 billion cycles per second. * Base Clock: The guaranteed minimum speed the CPU runs at during light tasks. * Boost/Turbo Speed: The maximum temporary speed a CPU can reach when tackling demanding tasks, provided operating temperatures remain safe. A higher clock speed generally means faster single-threaded performance, which makes day-to-day operations, single-tasking, and many legacy applications feel quick and snappy. Understanding CPU Cores A core is an individual physical processing unit inside the CPU chip. A multi-core processor essentially c...