This thread contains any errata concerning incorrect or incomplete information in the A+ Exam Cram 4th Edition. It also has some additions to the text. If you find anything in the book that you believe is incorrect, please Contact Me.

Page 29 PCI bullet alteration. The text in the 5th sentence says "The most common PCI cards...". To be accurate, this should say "PCI version 2.1 cards..."

Page 33, Table 2.1. PCIe Frequencies: There is some incorrect information regarding PCI Express frequencies. Version 1 should be 2.5 GHz, Version 2 should be 5 GHz, and Version 3 wasn't fully ratified as of the writing of the book (and won't be until at least 2nd quarter of 2010) but it is supposed to be 8 GHz. Effectively, all the PCIe frequencies listed in Table 2.1 are listed as half of their actual rate.

Page 38, Question 4."PCIe" should read "PCIe x16" in the question and the explanation. As I stated on page 31, keep in mind that x16 and x4 slots are controlled by the MCH (or northbridge), and x1 slots are controlled by the ICH (or southbridge).

Page 58. 64-bit CPU memory limitations: In the fourth paragraph, last sentence, the book states that a 64-bit CPU can access a maximum of 1 TB RAM, which was correct for Windows Server 2003 (64-bit), but that number is already outdated; Windows Server 2008 64-bit can use up to 2 TB depending on the version of the OS. Also, that last sentence of the paragraph isn't really accurate given the context of the rest of paragraph. The paragraph is speaking more to the CPU hardware itself, not the OS running on the computer. So to be more clear, replace that reference to 1 TB with the following: Currently, the 64-bit CPU itself can access up to 256 TB of RAM, which can possibly be extended as far as 4 petabytes (PB), but that extension isn't currently used. However, Windows XP 64-bit and Vista 64-bit are "limited" to 128 GB max pending on the version. Some Windows 7 64-bit versions can go as high as 192 GB.

Pg. 60, Level 2 bullet, 1st sentence: Phrasing: The term "built in to" should read "built on to" for accuracy. Although some people will consider "integrated" L2 cache to be "in" the CPU, it should not be confused with L1 cache which is actually built in to the CPU core.

Pg. 87, It's not the Quantity, It's the Quality. The article shows 4,000 MB/s as the additional amount that can be transferred. This should read 3,200 MB/s.

Pg. 117, Table 5.1. ATX 12V 2.0: The table leaves out the fact that most new ATX 12V 2.0 (or higher) power supplie2s will have an additional 4-pin power connector that connects to the motherboard separate from the P1 connector. An example of this is shown in the following figure:

Page 122, Installing the power supply, and page 47 Installing Motherboards. Case connectors: These sections don't really talk much about the case connectors (e.g. power switch, reset switch, hard drive activity LED, etc...). Some people refer to these as sub-mini connectors or case/motherboard connectors. An example of the connections on the motherboard is shown below. When connecting these, the colored wire normally goes to positive (+) if necessary. Some of the case connectors can be connected either way and it won't make a difference. But connectors like the power LED and the HDD activity LED need to be connected properly in order for the LEDs to display. Quite often the motherboard will be color coded, and the fold out instruction sheet will show exactly where to plug in each case connector, and the case connectors themselves are normally labeled.

Pg. 135. ATA, Table 6.1: The table does not show that ATA-7 not only defines Ultra ATA/133 but also defines SATA 1.5 Gbit/s. ATA-8 is not shown which is still being ratified but it will define SATA 3.0 Gbit/s.

Pg. 137 Table 6.2. Update to table: SATA naming conventions: The three rows should read:
SATA 1.x - Known as SATA 1.5 Gb/s (150 MB/s)
SATA 2.x - Known as SATA 3 Gb/s (300 MB/s)
SATA 3.x - Known as SATA 6 Gb/s (600 MB/s)
Any references on the rest of the page to the SATA 3.0 drive used in the book should be SATA 2.x (SATA 3 Gb/s). For the 2009 exams, a test taker should know SATA 1.x (1.5 Gb/s) and SATA 2.x (3 Gb/s) data transfer rates. (See edit on page 523 below as well).

Pg. 154. Blu-Ray additions: As the Blu-Ray standard progresses we have seen some changes to the specifications. The following capacities are current as of 7/2010. Key: SS = single sided, SL = single-layer, DL = dual-layer.

Standard size disc
12 cm SS SL disc: 25 GB
12 cm SS DL disc: 50 GB
Currently, additional layers can be added to discs beyond DL to increase the capacity to 100 or 200 GB.

8 cm SS SL disc: 7.8 GB
8 cm SS DL disc: 15.6 GB

NewSID: Pg. 170. NewSID is not available for download any longer from the TechNet as of Dec, 2009. This tool can still be found by searching the Internet, but is not necessarily needed, especially if you are using SIM. There is a pretty big debate going on about whether or not unique SIDs were ever really needed on a Microsoft client, see the following link: . You will note that many believe it is not necessary for Microsoft applications, but may very well be necessary for third-party apps.

Backing up before upgrades: Pg 176 & 191. When upgrading to Windows Vista (or XP in the rare case), it is extremely important to back up any necessary data-prior to starting the install. This fact was neglected in both of these sections and should be included in any upgrade process.

Typo alert: Pg 193. Question 1, answer B should read 233 MHz, not 266 MHz, However, the Answer and explanation on the next page (194) are correct, as is the minimum requirements table on page 185.

Pg. 223. Vista hibernation: The text shows that the hibernation option can be added to the shut down options area of the Start menu by using the command powercfg.exe/hibernate on. This is incomplete. On most systems, to have hibernation show up, a user would also have to turn off Hybrid sleep in the Power Options window. To do this, navigate to Start > Control Panel > Power Options, then select Change plan settings, and click Change advanced power settings. This brings up the Power Options window. Next, expand Sleep, and expand Hybrid sleep, then change the Hybrid sleep option to off. If the Hibernate option still does not show up in the Shut down area of the Start menu, verify that you have typed the command properly within the Command Prompt (and that you are running the Command Prompt as an administrator.) Restart the computer if necessary.

Incorrect Answer: Pg. 234. The answer to question 5 should read as answers B, C, and D. In the strictest sense, answer A is incorrect because msconfig can not be used to start and stop services immediately. It can be used to disable and enable services which could cause them to stop or start as the case may be when the computer restarts, but is more indirect.

Pg. 240, Table 8.3. Partitioning: The table doesn't speak to Vista's default action when creating secondary partitions, that is it makes them as primary partitions by default, as opposed to Windows XP where you have the option to make primary or extended partitions.

Pg. 259, 1st bullet: The path is missing the step "System Tools". So it should read:
"Click Start > All Programs > Accessories > System Tools > Disk Defragmenter."

Pg. 267, 9th bullet: "Disable automatic "system" on system failure (Vista only)". This should read "Disable automatic restart on system failure (Vista or XP with Service Pack 2 or higher).

Pg. 277. Device Manager: The caption for Figure 10.4 describes a disabled device, but it appears that the red x indicating a disabled 1394 Net Adapter device is not visible in the figure (see figure below). Also. the text speaks to how Windows XP will display a red x if a device is disabled, however, it should be noted that Windows Vista will show a down arrow (shown in second figure below) instead of a red x if the device is disabled. This is similar to the down arrow seen when a service is stopped. - Windows XP Device Manager with red X on the 1394 Net Adapter:

Windows Vista Device Manager with down arrow on a sound device:

Omission alert Pg. 296. - 3rd paragraph, 3rd sentence: "operating" should say "operating system"

Inaccuracy pg. 319. - 3rd paragraph, 3rd sentence: "Power Options window" should be "Power Options Properties dialog box".

Pg. 327. Terminology - Explanation 9 on page 327 should specify that the Power Options window is the Win7/Vista name (and when drilling down into the individual settings, the Power Options dialog box is used). In XP it is known as the Power Options Properties dialog box (or Power Options Properties window). Don't forget that the terms "window" and "dialog box" might be used interchangeably on the exam.

Explanation typo Pg. 360. The explanation for Question 7 says that 65,536 colors would be 8-bit. That is a typo and should read 16-bit. This is listed properly in the Color Depth section earlier in the chapter.

Pg. 362. S/PDIF: The text speaks to optical S/PDIF connectors but neglects to mention that there are also coaxial S/PDIF connectors, more common to external audio devices.

Pg. 368. USB: The book doesn't really show the different Safely Remove icons for Windows Vista and Windows XP. Each of these are displayed below.

Windows Vista:

Windows XP:

Pg. 414. Typo: First sentence: "Sockers" should read "Sockets".

Pg. 438. Typo: Third sentence: "10bps" should read "10Mbps".

Pg. 485. Antistatic bags: The third bullet "Use antistatic bags" says to either place adapter cards in or on the bag when not in use. The best procedure for this is to leave the card "in" the bag, not on the bag.

Update: Page 506, Question 15. The only correct answer for this question should be A. F8. F5 would be an alternative.

Update: Page 523, Question 99. The question says "SATA 1.5". It should be "SATA Version 1.x". The same goes for the corresponding explanation on page 536. Also, on page 536 the reference to "SATA 3.0" should read "SATA Version 2.x". This applies to any similar questions on the disc as well.

Page 549, question 62 alteration: To be more accurate, the question should say "activity light", and not "link light". The explanation alludes to this on page 581.

Incorrect answer: Pg. 565, Question 54. It would seem that answer D "Photosensitive Drum" is the correct answer. The printed Answer A "Transfer Corona Wire" doesn't make much sense. If the transfer corona wire failed, then there would probably be a blank printout with no images or text whatsoever. When outlining the questions in editing, it appears the letter D was switched to A (a new outline portion starts at letter A). My Apologies!

Page 568, question 75 typo. The answers listed should be A and D, not A and C.

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