Lenovo A3500 Hardware Maintenance Manual
Note: Before using this information and the product it supports, be sure to read the general information under “Notices” on page 70. First Edition (January 2014) © Copyright Lenovo 2014. All rights reserved. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and disclosure.
Contents About this manual........................................iv Safety information.........................................1 General safety ...................................................... 2 Electrical safety .................................................... 3 Safety inspection guide ...................................... 5 Handling devices that are sensitive to electrostatic discharge .................................................... 6 Grounding requirements ...............................
About this manual This manual contains service and reference information for the following Lenovo product: • Lenovo A3500 Use this manual to troubleshoot problems. The manual is divided into the following sections: • The common sections provide general information, guidelines, and safety information required for servicing computers. • The product-specific section includes service, reference, and product-specific parts information.
Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 • “Handling devices that are sensitive to electrostatic discharge” on page 6 • “Grounding requirements” on page 6 • “Safety notices: multilingual translations” on page 7 • “Laser compliance statement” on page 14 1
Lenovo A3500 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it. 4.
Safety information Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges. Do not use such kind of mat to protect yourself from electrical shock.
Lenovo A3500 Hardware Maintenance Manual • Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.
Safety information Safety inspection guide The purpose of this inspection guide is to assist you in identifying potential unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards according to the attachment of non-Lenovo features or options not covered by this inspection guide.
Lenovo A3500 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Notes: 1.
Safety information Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts.
Lenovo A3500 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. Certaines batteries de secours contiennent du nickel et du cadmium.
Safety information Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau.
Lenovo A3500 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.
Safety information Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing. Si le panneau d’affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes.
Lenovo A3500 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen.
Safety information Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface.
Lenovo A3500 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products.
Safety information A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz.
Lenovo A3500 Hardware Maintenance Manual Important service information This chapter presents the following important service information: • “Strategy for replacing FRUs” on page 16 — “Important notice for replacing a system board” on page 17 • “Important information about replacing RoHS compliant FRUs” on page 18 Important: BIOS and device driver fixes are customer-installable. The BIOS and device drivers are posted on the customer support site: http://consumersupport.lenovo.com/.
Important service information Important notice for replacing a system board Some components mounted on a system board are very sensitive. Improper handling can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: • Do not drop the system board or apply any excessive force to it. • Avoid rough handling of any kind. • Avoid bending the system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset.
Lenovo A3500 Hardware Maintenance Manual Important information about replacing RoHS compliant FRUs RoHS, The Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts.
General checkout General checkout This chapter presents the following information: • “What to do first” on page 20 • “Power system checkout” on page 21 Before you go to the checkout, make sure to read the following important notes: Important notes: • Only certified trained personnel can service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • When you replace FRUs, use new nylon-coated screws.
Lenovo A3500 Hardware Maintenance Manual What to do first When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: 1. Name and phone number of servicer 2. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Procedure index and page number in which the failing FRU was detected 6. Failing FRU name and part number 7. Machine type, model number, and serial number 8.
General checkout Power system checkout To verify a symptom, follow the steps below: 1. Turn off the computer. 2. Remove the battery pack. 3. Connect the AC adapter. 4. Make sure that power is supplied when you turn on the computer. 5. Turn off the computer. 6. Disconnect the AC adapter and install the charged battery pack. 7. Make sure that the battery pack supplies power when you turn on the computer.
Lenovo A3500 Hardware Maintenance Manual Checking the internal battery status To check the battery status of the tablet, do either of the following: • Approximate information about the battery status Get the approximate status of the battery at any time by checking the battery status icon on the system bar in the upper-right corner of the screen. The shorter the green bar is, the less the battery power remains.
Related service information Related service information This chapter presents the following information: • “Security” on page 23 • “Power management” on page 23 Security Security settings include: SCREEN SECURITY, SIM CARD LOCK (3G version only), PASSWORDS, DEVICE ADMINISTRATION and CREDENTIAL STORAGE. Power management Note: Power management modes are not supported for APM operating system.
Lenovo A3500 Hardware Maintenance Manual Lenovo A3500 This chapter presents the following product-specific service references and product-specific parts information: • “Specifications” on page 24 • “FRU replacement notices” on page 26 • “Removing and replacing an FRU” on page 27 • “Locations” on page 65 • “Parts list” on page 67 Specifications The following table lists the specifications of the Lenovo A3500 tablet. Table 1. Specifications Feature Description Size & Weight Size • 198mm x 121.2mm x 9.
Lenovo A3500 Ports • • • • Micro-USB (USB 2.0), 5-pin Earphone, 3.5mm SIM card slot T-flash card slot Communication • WiFi, 802.11b/g/n • WiFi Direct • WiFi display, Miracast support, HDCP 1.X • A-GPS (supporting GPS) • Bluetooth 4.
Lenovo A3500 Hardware Maintenance Manual FRU replacement notices This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In Lenovo computers, this problem is addressed with special nylon-coated screws that have the following characteristics: • They maintain tight connections. • They do not easily come loose, even with shock or vibration. • They are harder to tighten.
Lenovo A3500 Removing and replacing an FRU This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules: 1. Do not attempt to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review “FRU replacement notices” on page 26. 3. Begin by removing any FRUs that have to be removed before the failing FRU.
Lenovo A3500 Hardware Maintenance Manual 1010 Rear cover and side key 1. Open the card slot cover on the rear cover using a guitar pick. Figure 1-1. Opening the card slot cover 2. Remove screw a in the card slot recess. Figure 1-2. The screw in the card slot recess Part No. Screw (quantity) Color Torque a Phillips flat head screw, M1.4 x 3.0 (1) Silver N/A Note: The screw is sealed by the manufacturer for checking the warranty qualification of the product.
Lenovo A3500 3. Hold the tablet in one hand and use a guitar pick to unlock the rear cover from the tablet along the joint line as shown in the figure below. Figure 1-3. Unlocking the rear cover along the joint line 4. Remove the rear cover. Figure 1-4.
Lenovo A3500 Hardware Maintenance Manual 5. Detach the side key from the rear cover using a pair of tweezers. Figure 1-5. Detaching the side key 6. Remove the side key. Figure 1-6.
Lenovo A3500 1020 Battery pack For access, remove the following FRU: • “1010 Rear cover and side key” on page 28 Caution: Risk of explosion if the battery is replaced with an incorrect type. When replacing the lithium battery, use only the same or an equivalent type that is recommended by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Dispose of the used battery according to the instructions.
Lenovo A3500 Hardware Maintenance Manual 2. Remove the steel frame from the front module as shown in the figure below. Figure 2-2.
Lenovo A3500 3. Detach the battery FPC from its connector on the PCBA using a guitar pick. Figure 2-3. Detaching the battery FPC 4. Detach the battery pack from its seat by inserting a guitar pick into the joint surface and then cutting along the joint line in the direction shown in the figure below. Figure 2-4.
Lenovo A3500 Hardware Maintenance Manual 5. Remove the battery pack from the front module of the tablet. Figure 2-5.
Lenovo A3500 1030 Rear camera For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Detach the FPC of the rear camera from its connector on the PCBA using a guitar pick. Figure 3-1. Detaching the FPC of the rear camera 2. Detach the rear camera from its seat using a thin flat blade. Figure 3-2.
Lenovo A3500 Hardware Maintenance Manual 3. Remove the rear camera from the tablet. Figure 3-3.
Lenovo A3500 1040 PCBA Important notices for handling PCB: When handling PCB, bear the following in mind: • Be careful not to drop the PCB onto a bench top that has a hard surface, such as surface made of metal, wood, or composite materials. • Avoid rough handling of any kind. • Make sure not to drop or stack the PCB in the whole process. • Make sure to put the PCB only on surface covered with such materials as an ESD mat or conductive corrugated plate.
Lenovo A3500 Hardware Maintenance Manual 2. Peel off the mylar on the TP FPC connector on the PCBA. Figure 4-2. Position of the mylar 3. Unlock the TP FPC connector using a guitar pick. Figure 4-3.
Lenovo A3500 4. Detach the TP FPC from the PCBA surface using a thin flat blade while at the same time pulling out the FPC from its connector. Figure 4-4. Detaching the TP FPC 5. Peel off the mylar on the main FPC connector on the PCBA. Figure 4-5. Position of the mylar 6. Unlock the main FPC connector on the PCBA using a guitar pick. Figure 4-6.
Lenovo A3500 Hardware Maintenance Manual 7. Pull out the main FPC from its connector using a pair of tweezers. Figure 4-7. Pulling out the main FPC 8. Detach the RF cable of the speaker and antenna assembly from its connector on the PCBA. Figure 4-8.
Lenovo A3500 9. Detach the power key FPC from the front module of the tablet using a guitar pick or a thin flat blade. Figure 4-9. Detaching the power key FPC 10. Detach the volume key FPC from the front module of the tablet using a guitar pick or a thin flat blade. Figure 4-10.
Lenovo A3500 Hardware Maintenance Manual 11. Detach the reset key FPC from the front module of the tablet using a guitar pick or a thin flat blade. Figure 4-11. Detaching the reset key FPC 12. Remove screws a and screw of the tablet. for fixing the PCBA onto the front module Figure 4-12. The screws for fixing the PCBA 42 Part No. Screw (quantity) Color a Phillips flat head screw, M1.4 x 3.0 (3) Silver Torque N/A Phillips flat head screw (wide), M1.4 x 2.
Lenovo A3500 13. Slowly detach the PCBA (with other parts connected to it at this stage of the removal procedure) from the front module of the tablet, while taking care not to damage the FPCs that have been disconnected from it. Figure 4-13. The detached PCBA 14. Turn over the PCBA and then peel off the mylar on the soldering pad of the power key FPC and volume key FPC. Figure 4-14.
Lenovo A3500 Hardware Maintenance Manual 15. Desolder the power key FPC from the PCBA using a soldering iron and a solder sucker. Figure 4-15. Position of desoldering the power key FPC 16. Remove the power key FPC from the PCBA. Figure 4-16.
Lenovo A3500 17. Desolder the volume key FPC from the PCBA using a soldering iron and a solder sucker. Figure 4-17. Position of desoldering the volume key FPC 18. Remove the volume key FPC from the PCBA. Figure 4-18. The removed volume key FPC 19. Peel off the mylar on the soldering pad of the reset key FPC. Figure 4-19.
Lenovo A3500 Hardware Maintenance Manual 20. Desolder the reset key FPC from the PCBA using a soldering iron and a solder sucker. Figure 4-20. Position of desoldering the reset key FPC 21. Remove the reset key FPC from the PCBA. Figure 4-21. The removed reset key FPC 22. Peel off the mylar on the soldering pad of the front camera. Figure 4-22.
Lenovo A3500 23. Desolder the FPC of the front camera from the PCBA using a soldering iron and a solder sucker. Figure 4-23. Position of desoldering the front camera 24. Detach the front camera from its seat on the PCBA using a guitar pick or a thin flat blade. 25. Remove the front camera from the PCBA. Figure 4-24. The removed front camera The PCBA is now isolated and removed from the tablet.
Lenovo A3500 Hardware Maintenance Manual 1050 Receiver For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 and detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) • PCBA (with other parts connected) (Step 1 to 13 in “1040 PCBA” on page 37) 1. Detach the receiver from its seat on the front module of the tablet by prying it off using a pair of tweezers. Figure 5-1. Prying off the receiver 2.
Lenovo A3500 1060 Power key FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 and detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) • PCBA (with other parts connected) (Step 1 to 13 in “1040 PCBA” on page 37) 1. Remove the power key FPC from the PCBA according to Step 14 to 16 in “1040 PCBA” on page 37. Figure 6-1.
Lenovo A3500 Hardware Maintenance Manual 1070 Volume key FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 and detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) • PCBA (with other parts connected) (Step 1 to 13 in “1040 PCBA” on page 37) 1. Remove the volume key FPC from the PCBA according to Step 14, 17 and 18 in “1040 PCBA” on page 37. Figure 7-1.
Lenovo A3500 1080 Reset key FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 and detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) • PCBA (with other parts connected) (Step 1 to 13 in “1040 PCBA” on page 37) 1. Remove the reset key FPC from the PCBA according to Step 19 to 21 in “1040 PCBA” on page 37. Figure 8-1.
Lenovo A3500 Hardware Maintenance Manual 1090 Front camera For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 and detach the following FRUs: • Rear camera (Step 1 in “1030 Rear camera” on page 35) • PCBA (with other parts connected) (Step 1 to 13 in “1040 PCBA” on page 37) 1. Remove the front camera from the PCBA according to Step 22 to 25 in “1040 PCBA” on page 37. Figure 9-1.
Lenovo A3500 1100 Speaker and antenna assembly For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Peel off the mylar on the soldering points of the speaker and antenna assembly, the microphone, and the vibrator motor. Figure 10-1. Peeling off the mylar on the soldering points 2. Desolder the wires of the speaker and antenna assembly from the small PCB of the main FPC using a soldering iron and a solder sucker. Figure 10-2.
Lenovo A3500 Hardware Maintenance Manual 3. Detach the RF cable of the speaker and antenna assembly from its connector on the PCBA. Figure 10-3. Detaching the RF cable 4. Move out the RF cable from the cable duct in the front module of the tablet. Figure 10-4.
Lenovo A3500 5. Remove screws a for fixing the speaker and antenna assembly onto the front module of the tablet. Figure 10-5. The screws on the speaker and antenna assembly Part No. Screw (quantity) Color Torque a Silver N/A Phillips flat head screw, M1.4 x 3.0 (3) 6. Detach the speaker and antenna assembly from the front module while slowly peeling off the antenna foil. Figure 10-6.
Lenovo A3500 Hardware Maintenance Manual 7. Remove the speaker and antenna assembly from the front module of the tablet. Figure 10-7.
Lenovo A3500 1110 Microphone For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Remove screws a for fixing the speaker and antenna assembly onto the front module of the tablet. Figure 11-1. The screws on the speaker and antenna assembly Part No. Screw (quantity) Color Torque a Silver N/A Phillips flat head screw, M1.4 x 3.0 (3) 2.
Lenovo A3500 Hardware Maintenance Manual 3. Desolder the wires of the microphone from the small PCB of the main FPC using a soldering iron and a solder sucker. Figure 11-3. Position of desoldering the microphone wires 4. Detach the speaker and antenna assembly from the front module and then remove the rubber socket covering the microphone. Figure 11-4. Removing the rubber socket 5. Remove the microphone from the front module of the tablet. Figure 11-5.
Lenovo A3500 1120 Vibrator motor For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 1. Remove screws a for fixing the speaker and antenna assembly onto the front module of the tablet. Figure 12-1. The screws on the speaker and antenna assembly Part No. Screw (quantity) Color Torque a Silver N/A Phillips flat head screw, M1.4 x 3.0 (3) 2.
Lenovo A3500 Hardware Maintenance Manual 3. Desolder the wires of the vibrator motor from the small PCB of the main FPC using a soldering iron and a solder sucker. Figure 12-3. Position of desoldering the wires of the vibrator motor 4. Detach the speaker and antenna assembly from the front module and then detach the vibrator motor from its seat on the front module using a thin flat blade. Figure 12-4. Detaching the vibrator motor 5. Remove the vibrator motor from the front module of the tablet.
Lenovo A3500 1130 Main FPC For access, remove the following FRUs: • “1010 Rear cover and side key” on page 28 • “1020 Battery pack” on page 31 and desolder the following FRUs: • Speaker and antenna assembly (Step 2 in “1100 Speaker and antenna assembly” on page 53) • Microphone (Step 2 in “1110 Microphone” on page 57) • Vibrator motor (Step 2 in “1120 Vibrator motor” on page 59) 1. Disconnect the main FPC from the PCBA by performing Step 1 and Step 5 to 7 in “1040 PCBA” on page 37. 2.
Lenovo A3500 Hardware Maintenance Manual 3. Unlock the main FPC connector in the front module using a guitar pick. Figure 13-2. Unlocking the main FPC connector 4. Peel off the main FPC from the front module of the tablet as shown in the figure below. Figure 13-3.
Lenovo A3500 5. Pull out the main FPC from its connector using a pair of tweezers. Figure 13-4. Pulling out the main FPC 6. Detach the small PCB of the main FPC from the front module of the tablet using a guitar pick or a thin flat blade. Figure 13-5.
Lenovo A3500 Hardware Maintenance Manual 7. Remove the main FPC from the tablet. Figure 13-6.
Lenovo A3500 Locations Front view a Receiver b Front camera Speaker 65
Lenovo A3500 Hardware Maintenance Manual Rear view Micro-USB connection Rear camera Earphone socket SIM card slot T-flash card slot Microphone Volume key Power key 66
Lenovo A3500 Parts list This section presents the following service parts: • “Overall” on page 67 • “Screw” on page 69 Overall 67
Lenovo A3500 Hardware Maintenance Manual Table 1. Parts list–Overall 68 No. FRU FRU No.
Lenovo A3500 Screw Table 2. Parts list–Screw FRU P/N Phillips flat head screw, M1.4 x 3.0 Phillips flat head screw (wide), M1.4 x 2.
Lenovo A3500 Hardware Maintenance Manual Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used.
Notices Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary.
