Category: storage

COUNTERFEIT COMPUTER HARDWARE

We have noticed that counterfeit computer components are becoming a growing problem. We first encountered this problem with the AK 680 power supply. The Echostar 680W is even worse. Both use oem power supply boards and labeled their respective products at double the actual true capacity or more. Vast  numbers of these counterfeit power supplies …

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ST3500320AS

ST3500320AS

The ST3500320AS is a 500GB SATA hard disk. Seagate released some new firmware for this disk, check with Seagate to determine if your disk is affected. 500GB Capacity and 32-MB Cache Best-in-class environmental specifications and reliability features Adaptive Fly Height offers consistent read/write performance from the beginning to the end of your computing workload Ships …

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NVM EXPRESS

Non Volatile Memory Express was first seen at an Intel Developer’s forum back in 2007. The standard was not published however until April 2008. As of 2014 more than 65 corporations are now members. BIOS support is needed for NVMe support for primary boot. Intel Z-170 support NVMe with M.2 slots for SSD in addition …

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CLEARING HARD DISK PARTITIONS

mfm hard disk

Hard disks may have several partitions. Windows Vista and above use a small boot partition. This page will show you how to clean a disk to like new. This way it can be used fresh for a clean install of Windows or as a data disk. DISKPART Open the command prompt as an administrator then …

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ST3320620AS

ST3320620AS

The Seagate ST3320620AS is a 320GB hard disk from the 7200.10 series. 7200.10 7200rpm 320GB Perpendicular Recording 16MB cache SATA II Whisper-quiet operation Enhanced G-Force Protection against handling damage Clean Sweep calibration and Directed Offline scan diagnostics RoHS (restriction of hazardous substances) compliant The 7200.10 series disks have a good reputation for being a rock solid …

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USB STICK ROUNDUP

usb stick

USB memory disks surfaced late in 2000. IBM sold the first models with a capacity of 8MB. It took several years for prices to fall but in 15 years the price deflator has been brutal. As of 2015, USB sticks are available in 32 GB for under $20. USB sticks adopted USB 2.0 circa 2003 on …

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SERIAL ATA

Serial_ATA

Serial ATA (SATA) is the new disk interface for consumer and business computers. SATA has several advantages over the older EIDE  with smaller lower cost lower cost cables. SATA supports hot plug which means that with proper support, disks can be swapped with the machines still running. SATA has advantages with servers which use vast …

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IOMEGA ZIP DRIVE

The IOmega Zip drive was released circa Q4 1994. The Zip drive originally was shipped as a SCSI device but it had a firmware problem that caused the drive to malfunction. The Zip disk with 100 megabytes of capacity was very attractive at a time when most computers were equipped with 200-500MB hard disks. The …

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MAXTOR 7540AV

MAXTOR 7540AV

The Maxtor 7540AV is a large capacity 540MB hard disk. The 7540AV is slightly larger than DOS  could manage with on 8088 or 80286 based machines. Maxtor also had larger SCSI disks up to 1.2GB but they were very expensive and DOS limitations reduced their appeal. This disk was $550 new in Q1 1994. 540MB …

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THE CD/DVD/BD DRIVE

CDR-logo

Games were early adopters of the CD drive when the PC started supporting them in the early 1990s. The huge capacity of the CD meant that far more sophisticated games could be possible. The ISO standards are called the Yellow book. There are also many other standards which helped make the CD drive the pervasive …

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SOLID STATE FLASH DRIVES

15-36tb_ssd_02

Solid state drives (SSD) have become very popular with laptop machines. For many years laptop users, struggling with slow hard disks, bought SSD replacements by the millions. Back in the early 1990s SanDisk was offering solid state flash based storage. 20MB was $1000. Fast forward to 2016 and now you can get 2TB for $1000. …

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PCMCIA

Pcmcia-type-ii-and-iii

PCMCIA is based on the EIDE architecture found in desktop personal computers. By using a smaller connector with power and other signals, it allowed the use of solid state storage other other peripherals to be attached. In Japan the JEIDA standard competed with PCMCIA so in 1991 after some pressure from industry the standards were …

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HARDCARD

hardcard

The IBC PC usually had a single floppy drive. Quantum realized some machines could used an expansion card to add storage. The original Quantim 10MB hard card was $1095. The earlier Xebec Owl 10MB disk was released in August 1984 with a 5¾” disk and a SASI controller on a card. Quantum introduced the hardcard with …

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RODIME RO352

RODIME RO352

The Rodime RO352 is he first hard disk available in the 3½” format. This disk cost $1,895 when new in 1983. 11MB ST506 interface 306 cylinders 4 heads 17 sectors 306 landing zone type 02 3600rpm The Rodime RO0352  is a ST506 MFM hard disk in the 3½” format . There are two models in the series, RO351 …

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HARD DISK ERRORS

mfm hard disk

Occasionally hard disks run out of spare sectors. Often those errors arise after a few years of use. It is best to format the disk and then check the media to be sure all of the bad sectors are mapped. This way Windows can continue to use the disk for general use. FORMAT Generally format …

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