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ATA VS SCSI

waiting to catch up on ebay a PCI SATAII controller at an affordable price to install on my system K6III + in order to eliminate the bottleneck constituted by the record, I recovered from an old server out of three disks with Pentium IV 9.1GB SCSI Quantum Atlas 160 and I immediately wanted to test them with an equally old controller that I had an Adaptec 2940UW SCSI. I state that he never had any experience with SCSI systems, and therefore to properly install and configure I first documented.

Despite the documentation I found was exhaustive and complete I initially had problems with the correct configuration of the CD-ROM ATA which although not recognized boot. The problem was only resolved this by setting the jumpers to Cable Select and connect them so it was on the second ATA channel slave of the mobo.

For installation and configuration are parties with the installation of Ubuntu 8.04 is already here and the first differences are noted.

First with the Hot Rod 100 PCI controller and a disk ATA133, so in UDMA5, the same installation hangs at 6% and then after kept waiting, the system said that something had gone wrong, then trying the installation with Ubuntu 7.10 who underwent a nerve-wracking pause at 6%, this ended after about 2 hours without errors to obtain a correctly installed. Now with Ubuntu 8.04 with the SCSI and the installation has proceeded on a regular basis even if not in the short term, over an hour, but at no cost and resulting in a system installed successfully.

During boot the OS with SCSI you have not improved in terms of time but the system loaded when you start other programs that the whole is more responsive while the ATA100 with a program like GIMP was loaded and made available in installments now SCSI there was a load that tends to offer the end applet completely ready. Another example would be the window menu with Ubuntu ATA100 first opened in gray and while loading it offered all the menu icons, now with SCSI you press the button and boot Ubuntu now offers a full menu while not immediate but however, faster than with ATA100.

Everything but did not eliminate the bottleneck disk system has opened my eyes to how this ATA has never been what you thought.

I replaced with a gaming ATA100 transfer theoretical maximum of 100Mb/sec. from UW with a SCSI 40MB/sec. having the same results if not even better! Considering that

nell'ATA100 100Mb/sec. are theoretically possible transfer half so 50Mb/sec., though the SCSI should be less, but NO!

So why pretend ATA systems by identifying them with their theoretical limits in practice when the transfers are not even 40% of that value??

The same goes for ATA133, SATA and SATAII. If I was the first

looking for a SATAII controller and then having to buy a SATAII hard, now I just try, and I have found, a UW160 SCSI controller which is undoubtedly better than any system SATAII ...

All we are used to fill the first disk SATA PATA hours just because the manufacturers provide the mobo with those controllers that cost them nothing and make them pay us not to mention the full records on and eventually live with systems that do hiccups and we are well pleased!

SCSI Try it once and do not let him ever again. GUARANTEED.

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Trucco per Gigabyte GA-5 AX rev 5.2

Super7 Motherboard Chipset ALi AladdinV (ALi1541 ALi1543C +) with 512 KB of L2 and support ATA66. The card offers many options for overclocking, however, suffers from a problem of construction that limits this possibility. The problem is that the voltage regulator is mounted on the main board so as not to facilitate cooling but is made to adhere to the card with the metal and bound with screw and nut. By placing the card with the USB ports, mouse and keyboard, etc.. up, the controller in question is located near the battery in the upper right. The voltage regulators get very hot and heats more efficiently regulate voltage less divenedo source of instability especially in the PC. Regulators voltage typically have a flat metal surface suitable to be made to adhere to a heat sink. This area which stretches to the top of the component, presupponedo the bottom of the contacts, has a hole where the screw to pass in order to maintain adherence with the flap.

sure to save on production costs, Gigabyte instead of using aluminum fin, the governor has made to adhere directly to the board that in addition to being a good conductor of heat causes excessive heating of the component and all its neighbors. The trick is to remove the screw and nut slowly raise the component and perhaps using the same screw and nut attach a generous the aluminum heat sink, perhaps even putting the silver thermal paste between the two.

After this operation, I could use the frequencies previously unthinkable bus, up to 130MHz!

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K6III+

The latest CPUs from AMD Socket7, particularly Super7 that supports a 100MHz bus and beyond. The core of the + (plus) differs from the nucleus of normal K6 for the production process which is at 0.18 micron copper with the aluminum to o.25 of all previous K6. This allows less and less cosume overheating resulting in a CPU suitable for laptops. The absence of internal blocks that finally makes it great for CPU OC (OC).

The chipsets that support the latest CPU and the VIA MVP3 ALi Aladdin V having such features as support for AGP 2X and with maximum memory allocation of 768MB of RAM for everyone. There was also the Aladdin7 an integrated video chip with AGP 4X.

From the K6III, so even K6II + and III +, the core is provided with an internal L2 cache running at the same frequency and is 128Kb and 256Kb for K6II + for III and III +. The onboard cache is then used as an L3 ulterirmente that increases performance for these CPUs.

A technique for the OC actually born with K6 decapping is the bargain of the core uncovered by removing the aluminum plate attached to the ceramic substrate by means of silicone adhesive present at the corners using a cutter. With this technique and the use of sinks in copper and silver paste is obtained by the dissipation driven ideal for OC.

The OC is limited only by the quality of construction and quality components, and virtually all CPU K6III + ACZ and ACZM, from 400 to 550 Mhz, 600Mhz to run quietly without overvolt Rock Solid, above this threshold it all depends on a myriad of factors that we could gather in the variable has an ass.

Personally I had a good variable because my ass K6III + 450 ACZ runs Rock Solid at 633Mhz with these settings: 115Mhz bus x 5.5 to 2.4 Vcore with L2 cache enabled me fries to 120MHz which is the next bus setting as possible.

course for those of overclocking you must use PC133 SDRAM 168pin and you must have a VGA Cards PCI and PCI bus supporting a highly overclocked, I had to replace the network card because it could not keep up!

The resulting system is still used for office type applications / internet with multimedia content.

Mine is as follows:

CPU: K6III +450 ACZ @ 633Mhz Solid Rock

Mobo: Gigabyte GA-5 AX rev.5.2 bios F4 (latest)

RAM: 768MB SDRAM PC133 CL2

VGA: GeForce FX 5900XT

HD 256Mb DDR: 3 x 9.1GB Quantum Atlas IV

UW160 SCSI Controller: Adaptec SCSI AHA19160 UW

Audio: Creative Sound Blaster Live! 5.1

LAN: 10/100 LAN Realtech 8139

USB VIA USB2 PCI card

Firewire: VIA firewire PCI card

All running under Ubuntu 7.10 Gutsy with Compiz and all the graphical effects enabled at random and with control of the CPU PowerNow enabled. Hacking with the Compiz suitors remains at 380Mhz!

Surfing the net does not feel the difference with my other Operon180 ...

have not yet switched to Ubuntu fiesty Intrpid or due to the fact that nVidia does not yet support the FX 5900TX with the new kernel and I do not think it will ever ...

I hope the article will please lovers of the Super7 and K6III +.

I read around that are K6III + III-perform at the same frequency, I'd like to know ... xke