Acer Aspire 5515 Service Guide

130Chapter 4
b.Double-click IDE ATA/ATAPI controllers, then right-click ATA Device 0. 
c.Click Properties and select the Advanced Settings tab. Ensure that the Enable DMA box is 
checked and click OK. 
d.Repeat for the other ATA Devices shown if applicable.
Drive Not Detected
If Windows cannot detect the drive, perform the following actions one at a time to correct the problem.
1.Restart the computer and press F2 to enter the BIOS Utility. 
2.Check that the drive is detected in the ATAPI Model Name field...

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Modem Function Failure
If the internal Modem fails, perform the following actions one at a time to correct the problem. Do not replace a 
non-defective FRUs:
Wireless Function Failure
If the WLAN fails, perform the following actions one at a time to correct the problem. Do not replace a non-
defective FRUs: 

132Chapter 4
Thermal Unit Failure
If the Thermal Unit fails, perform the following actions one at a time to correct the problem. Do not replace a 
non-defective FRUs:
External Mouse Failure
If an external Mouse fails, perform the following actions one at a time to correct the problem. 
1.Try an alternative mouse.
2.If the mouse uses a wireless connection, insert new batteries and confirm there is a good connection. See 
the mouse user manual.
3.If the mouse uses a USB connection, try an alternate USB...

Chapter 4133
•No hardware is listed under Other Devices.
13.If the Issue is still not resolved, see “Online Support Information” on page 163.
Other Failures
If the CRT Switch, Dock, LAN Port, external MIC or Speakers, PCI Express Card, 5-in-1 Card Reader or 
Volume Wheel fail, perform the following general steps to correct the problem. Do not replace a non-defective 
FRUs:
1.Check Drive whether is OK.
2.Check Test Fixture is ok.
3.Swap M/B to Try. 

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Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a 
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement 
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1.Run the advanced diagnostic test for the system board in loop mode at least 10 times.
2.If no error is detected, do not replace any FRU.
3.If any...

Chapter 4135
Post Codes
These tables describe the POST codes and descriptions during the POST.
Chipset POST Codes
The following table details the chipset POST codes and functions used in the POST.
CodeBeepsPOST Routine Description
02h Verify Real Mode
03h Disable Non-Maskable Interrupt (NMI)
04h Get CPU type
06h Initialize system hardware
08h Initialize chipset with initial POST values
09h Set IN POST flag
0Ah Initialize CPU registers
0Bh Enable CPU cache
0Ch Initialize caches to initial POST values
0Eh...

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3Ch Advanced configuration of chipset registers
3Dh Load alternate registers with CMOS values
42h Initialize interrupt vectors
45h POST device initialization
46h 2-1-2-3 Check ROM copyright notice
48h Check video configuration against CMOS
49h Initialize PCI bus and devices
4Ah Initialize all video adapters in system
4Bh QuietBoot start (optional)
4Ch Shadow video BIOS ROM
4Eh Display BIOS copyright notice
50h Display CPU type and speed
51h Initialize EISA board
52h Test keyboard
54h Set key...

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87h Configure Motherboard Configurable Devices (optional)
88h Initialize BIOS Data Area
89h Enable Non-Maskable Interrupts (NMIs)
8Ah Initialize Extended BIOS Data Area
8Bh Test and initialize PS/2 mouse
8Ch Initialize floppy controller
8Fh Determine number of ATA drives (optional)
90h Initialize hard-disk controllers
91h Initialize local-bus hard-disk controllers
92h Jump to UserPatch2
93h Build MPTABLE for multi-processor boards
95h Install CD ROM for boot
96h Clear huge ES segment...

138Chapter 4
* If the BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an additional word-bitmap (xxxx) 
indicating the address line or bits that failed. For example, 2C 0002 means address line 1 (bit one set) has 
failed. 2E 1020 means data bits 12 and 5 (bits 12 and 5 set) have failed in the lower 16 bits. Note that error 30 
cannot occur on 386SX systems because they have a 16 rather than 32-bit bus. The BIOS also sends the 
bitmap to the port-80 LED display. It first displays the...

Chapter 5139
Jumper and Connector Locations
Top View
ItemDescriptionItemDescription
JLVDS1 LCD Connector JP35 Camera Connector
JP2 SW/B Connector SW1 LID Switch
JP6 TouchPad Connector SW3 TouchPad (left) Button
JP7 Internal Keyboard Connector SW4 TouchPad (right) Button
JP12 Speaker Connector U18 South Bridge
JP13 MIC-IN Jack
Chapter 5