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CPU Basics: Multiple CPUs, Cores, and Hyper-Threading Explained by Chris Hoffman on June 15th, 2017 The central processing unit (CPU) in your computer does the computational work—running programs, basically. But modern CPUs offer features like multiple cores and hyper-threading. Some PCs even use multiple CPUs. We’re here to help sort it all out. RELATED: Why You Can’t Use CPU Clock Speed to Compare Computer Performance The clock speed for a CPU used to be enough when comparing performance. Things aren’t so simple anymore. A CPU that offers multiple cores or hyper-threading may perform significantly better than a single-core CPU of the same speed that doesn’t feature hyper-threading. And PCs with multiple CPUs can have an even bigger advantage. All of these features are designed to allow PCs to more easily run multiple processes at the same time—increasing your performance when multitasking or under the demands of powerful apps like video encoders and modern games. So...

What Is UEFI, and How Is It Different from BIOS? by Chris Hoffman on November 27th, 2017 The BIOS will soon be dead: Intel has announced plans to completely replace it with UEFI on all their chipsets by 2020. But what is UEFI, and how is it different from the BIOS we’re all familiar with? Both UEFI and BIOS are low-level software that starts when you boot your PC before booting your operating system, but UEFI is a more modern solution, supporting larger hard drives, faster boot times, more security features, and—conveniently—graphics and mouse cursors. We’ve seen newer PCs that ship with UEFI still refer to it as the “BIOS” to avoid confusing people who are used to a traditional PC BIOS. Even if your PC uses the term “BIOS”, modern PCs you buy today almost certainly ship with UEFI firmware instead of a BIOS. Here’s why. What Is a BIOS? RELATED: What Does a PC’s BIOS Do, and When Should I Use It? BIOS is short for Basic Input-Output system . It’s low-level s...

6 Things You Shouldn’t Do With Solid-State Drives by Chris Hoffman on June 20th, 2013 Solid-state drives are different from the mechanical, magnetic hard drives in wide use. Many of the things you’ve done with typical mechanical hard drives shouldn’t be done with newer solid-state drives. Solid-state drives are presented by the operating system the same way mechanical drives are, but they work differently. If you’re a geek, knowing what you shouldn’t do is important. Don’t Defragment You shouldn’t defragment solid-state drives. The storage sectors on an SSD have a limited number of writes — often fewer writes on cheaper drives — and defragmenting will result in many more writes as your defragmenter moves files around. What’s more, you won’t see any speed improvements from defragmenting. On a mechanical hard drive, defragmenting is beneficial because the drive’s head has to move over the magnetic platter to read the data. If a file’s data is spread out over t...

Checkpoint (CP) code table Time (mm:ss) Checkpoint(s) Major System Components Successfully Initialized Video Display Comment - 0:0 Standby Blank . 00:00 Push power button to turn on system System power up sequence starts with code format 0:x or 1:x (digits separated by dots) 00:02 0:1 .. 0:8 Turn on 12V, Turn on 5V, 3.3V volt regs Blank . 00:04 1:A..1:b..1:d Turn on chipset, processors Blank DVD drive LED on 00:15 1:E Reset chipset Blank 1A to 1E may repeat; 5 - 15 seconds - ...

List of Quad Core LGA 775 CPUs Prices are automatically updated throughout the day. CPU Price (Apr 5) Speed & Ratio L2 Cache FSB TDP Node Codename & Socket Stepping (sSpec) Core 2 Extreme QX9770 $279 3.20 GHz 8.0x 2 x 6 MB 1600 136 W 45nm Yorkfield XE LGA 775 C1 (SLAWM) C0 (SLAN2) View Sellers Xeon X3380 Sold out 3.17 GHz 9.5x 2 x 6 MB 1333 95 W 45nm Yorkfield LGA 775 E0 (SLGPG) View Sellers ~ 3.00 GHz Core 2 Quad Q9650 $20 3.00 GHz 9.0x 2 x 6 MB 1333 95 W 45nm Yorkfield LGA 775 E0 (SLB8W) View Sellers Xeon X3370 $42 3.00 GHz 9.0x 2 x 6 MB 1333 95 W 45nm Yorkfield LGA 775 E0 (SLB8Z) View Sellers Core 2 Extreme QX6800 $50 2.93 GHz 11.0x 2 x 4 MB 1066 130 W 65nm Kentsfield XE LGA 775 G0 (SLACP) B3 (SL9UK) View Sellers Core 2 Extreme QX6850 $58 3.00 GHz 9.0x 2 x 4 MB 1333 130 W 65nm Kentsfield XE LGA 775 G0 (SLAFN) View Sellers Core 2 Extreme QX9650 $88 3.00 GHz 9.0x 2 x 6 MB 1333 130 W 45nm Yorkfield XE LGA 775 C1 (SLAWN) C0 (SLAN3) View Sell...