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Sat, Jun 09, 2018 10:40 pm

Blinking caps lock LED on HP envy 6t-1100

A coworker replaced the keyboard on an HP envy 6t-1100 laptop because some keys on the keyboard were no longer working. When he powered on the laptop after replacing the keyboard, the laptop would no longer boot. Instead of booting, the CAPS LOCK LED would blink three times slowly followed by a pause and then the sequence would repeat. The F5 key LED was also lit along with the WiFi LED, which was red. I found some posters on HP's website associating that behavior with issues with a memory module. E.g., Blinking caps lock 3 times, screen black, f12 wifi light on Hp Pavilion dv7-6c64nr entertainment pc and Caps Lock and Num Lock blinking 3 times / Memory module issue. He was able to resolve that problem and get the latpop to boot again by blowing out the sockets with compressed air and cleaning the contacts on the memory modules with rubbing alcohol.

[/pc/hardware/hp] permanent link

Sat, Aug 08, 2015 11:00 pm

Booting a Dell Dimension 2400 from a USB flash drive

To boot a Dell Dimension from a USB flash drive, for example a Clonezilla Live USB drive, connect the USB flash drive, power on the system, then hit F12 to get the boot menu when you see the Dell logo. From the boot device menu, select "USB Flash Device".
Boot Device Menu
================

  1. Normal
  2. Hard-Disk Drive C:
  3. IDE CD-ROM Device
  4. Diskette Drive
  5. USB Flash Device

  6. System Setup
  7. IDE Drive Diagnostics
  8. Boot to Utility Partition

Enter a choice: 1

You can configure the system to always attempt to boot from a USB device before the hard disk drive (HDD) by hitting F2 when you power on the system and the Dell logo appears to enter the BIOS setup. Under Hard-Disk Drive Sequence, you can put "USB Device" at the top of the list, if you wish by using the "+" or "-" keys to rearrange the order in which the BIOS will choose boot devices. You will need to put "USB Device" prior to "System BIOS boot devices" to have the system attempt to boot from a USB drive first. You can select "USB Device" and use the minus key to move it to be entry 1 in the list.

1. USB Device
2. System BIOS boot devices
3. Hard disk drive (not installed)

[/pc/hardware/dell] permanent link

Tue, Apr 10, 2012 8:00 am

Memory for Asus P4P800-E

I installed two additional memory modules in an ASUS P4P800-E motherboard. The motherboard has 4 memory slots that take DDR1 memory modules. The system had two 1 GB memory modules already installed. I installed two additional 1 GB memory modules giving the system 4 GB of RAM, which is the maximum amount of memory the P4P800-E motherboard will support. I used Corsair VS1GB333 memory modules. After I installed the additional memory, I used the free MemScope Memory Tester software to test all of the memory in the system. I let the test run over night for six complete passes and part of a seventh pass with no errors found.

Note: you can download the MemScope Memory Tester software here. At the moment there is a missing image on the page that has a link associated with it for downloading the software. The link appears immediately below the "Test 7 Random Data Sequence Test" paragraph or you can click here to access the form you need to fill out to download the software.

[/pc/hardware/motherboard] permanent link

Tue, Dec 08, 2009 9:54 pm

Problem with Media Card Reader in HP G70 Laptop

A family member has an HP laptop, model number HP G70-460US. I upgraded Microsoft Windows on the system from Vista to Windows 7 a few weeks ago. Today, when she tried using memory sticks from her camera in the media card reader built into the laptop, Windows Explorer would stop responding. I attempted to restart Windows Explorer, but it wouldn't restart. Nor could I shutdown and restart the system without powering it off using the power button.

I tried a couple of memory sticks, but the result was the same. She could sometimes move files from a memory stick, but then attempting to access the memory stick again would cause the Windows Explorer to stop responding.

I downloaded and installed the Realtek USB 2.0 Card Reader driver, which appears to have resolved the problem.

Released:2009-08-28
Version:6.1.7100.30093 A
Compatibility: Microsoft Windows 7 (32-bit), Microsoft Windows 7 Home Premium (64-bit), Microsoft Windows 7 (64-bit), Microsoft Windows 7 Professional (64-bit), Microsoft Windows 7 Ultimate (64-bit), Microsoft Windows 7 Home Basic (32-bit), Microsoft Windows 7 Home Premium (32-bit), Microsoft Windows 7 Professional (32-bit), Microsoft Windows 7 Ultimate (32-bit), Microsoft Windows 7 Starter (32-bit), Microsoft Windows 7 Home Basic (64-bit)
System requirements:No additional prerequisites
Description:This driver enable card reader read/write functionalities.
Enhancements:Original Software/Drivers

Download Site: HP
Download URL: Realtek USB 2.0 Card Reader

[/pc/hardware/hp] permanent link

Thu, Aug 06, 2009 9:39 pm

Dell Latitude D505 Display Power Problem

I had to replace the motherboard on a Dell Latitude D505 laptop. The display would blank unless pressure was put on the center control cover near the power button.

[ More Info ]

[/pc/hardware/dell] permanent link

Sat, Apr 11, 2009 12:28 pm

Toshiba M35X Laptop Discharges on AC Power

I've been experiencing more power problems with my Toshiba M35X-S109 laptop. Even when it is powered by A/C, i.e. I have the power cabled attached to it, the battery will sometimes discharge and the system will power itself off. If I check the power status (click on Start, Control Panel, Performance and Maintenance, Toshiba Power Management), I see that the system is on A/C power, yet the battery is still discharging.

Toshiba Power Management on A/C battery discharging

Eventually, the Toshiba Power Management Utility will show that the battery has fully discharged. Then within a minute or two, the system will power itself off.

Toshiba Power Management on A/C battery zero charge

I had configured the Toshiba Power Management Utility to put the system in hibernate mode when the power got down to a a very low percentage, but it has never done so; the system just powers off. And, even though I had it configured to warn me when the battery power got down to 10%, I'm never warned either. The system just abrubtly powers itself off.

I had found other people reporting similar problems with this laptop when I searched for information on the problem previously - see Toshiba M35X Laptop Powers Off Randomly. The system had been showing 100% power yesterday evening and I hadn't noticed the charge state decreasing - I use Laptop Battery Power Monitor to constantly monitor the charge state of the battery - and I hadn't saved a lot of notes I had made regarding a problem I was working on. I know better than to use Windows Notepad, since it doesn't do any automatic file saving, but I had pasted output from a remote system and URLs related to the problem I was working on at the time into Notes. So I utterred a few curses when the laptop powered itself off, since all those notes were lost.

When the system is not charging, I see the two left-most LED's lit green on the front of the laptop. The left-most one indicates the laptop has A/C power. The middle one is lit green indicating the system is powered on. When the system is charging, the right-most one is lit amber when the battery is charging. And the Laptop Battery Power Monitor will have an orange arrow pointing out of it to notify me that the laptop battery is charging.

Laptop Battery Power Monitor - battery charging

When the system powers itself off, I've found that if I power it back on immediately, it will show a zero percent charge and power itself back off within a couple of minutes. If I do nothing, but leave the system off for awhile, when I turn it back on, it may show the battery as fully charged or show it is in a charging state, depending on how long I've left it powered off. Sometimes, though, it shows the battery in a partially charged state and immediately starts discharging again.

Today, I found that if I tipped the laptop backwords, I could get the state to go from discharging to charging. If I put it back down, sometimes it would show that it was charging, other times it would be discharging the battery. I also found that if I pulled the A/C power plug from the back of the laptop and plugged it back in, sometimes I could get it to go to the charging state. Sometimes the Laptop Battery Monitor utility would show briefly that the battery was being charged, but would almost immediately switch to showing it was discharging. If I removed the power plug and put it back in multiple times, I could sometimes get it to stay in the charging state. At the moment it's charging again.

I did some more online searching with Google again today to see what others were saying about such problems with Toshiba laptops. I found others reporting similar problems with other Toshiba laptops. Many, like myself, stated they are unlikely to consider a Toshiba laptop for future laptop purchases. I found a lot of very informative postings on the problem by various people at Toshiba Satellite P25-s520 AC Power Problem. Some people had reported resolving the problem by simply opening the laptop and blowing out dust. Others fixed their problem by replacing the nib on the power adapter. Others replaced or adjusted the placement of components inside the laptop. For anyone experiencing similar problems, I would recommend reading the postings there. If those webpages ever disappear or the site is unavailable, the Internet Archive, aka the Wayback Machine, has them archived at Toshiba Satellite Ps5-s520 AC Power Problem. One of the posters even posted a link on how to disassemble a Toshiba Satellite P25 notebook, which you might want to try to get rid of dust inside the laptop or if you want to check the power connection to the motherboard. The link is Disassembling Toshiba Satellite P25 notebook. It may be helpful for those who need to disassemble other models of Toshiba Satellite laptops as well.

One poster even said he was able to rectify the problem by wrapping aluminum foil around the nib of the power plug that goes into the back of the laptop. I tried that; it didn't help and, when the foil comes off and remains inside the connector on the back of the laptop, it may be difficult to get all of it back out, so, personally, I can't recommend that solution, though, if you are desparate, you can try it.

[/pc/hardware/toshiba] permanent link

Sun, Feb 15, 2009 8:42 pm

Toshiba M35X Laptop Powers Off Randomly

I've been having a lot of power problems with a Toshiba laptop, model number M35X-S109 and part number PSA7U-01300U, recently. The system will randomly power itself off without warning. Often, when I power it back on, the battery will show a very low charge and will be charging. At Satellite model M35X - fixing power connector, I found that this model of Toshiba laptop is known for having a power connector problem. The webpage has pictures of the power connector on the motherboard showing signs of the problem. Pictures are also shown illustrating a repaired power connector. Another webpage with information on the problem is Toshiba Satellite M35X and Satellite A75 power jack and battery charge problem. There is a Toshiba Satellite A75 failed power jack workaround page detailing how one person, who had his laptop repaired multiple times to fix the problem, finally resorted to moving the power connector outside the laptop case. Another reference to the problem is at Satellite 1900. Laptop loses power and shuts down without warning.

I have the Toshiba Power Management Utility configured on the system to sound an alarm and display a message when the battery charges drops to 10%. I have it configured to sound an alarm, display a message, and hibernate when the charge drops to 5%. But it never takes those actions. Instead, the laptop just powers off.

So that I could at least have some forwarning of when the battery charge is getting very low, I installed Laptop Battery Power Monitor, which places a battery widget on the desktop which displays the battery's charge level and which appears above other windows.

[/pc/hardware/toshiba] permanent link

Sun, Jul 13, 2008 7:57 pm

BFG Tech Model BFG550WGSPSU Power Supply

BFG GS550 Power Supply Box BFG550WGSPSU
connectors

Click either image to see a larger version

Manufacturer: BFG Tech
Model: BFG550WGSPSU
AC Input: 115/230V~,60/50Hz,10/6A

Specifications
ATX12V 2.2
Dual 12V Rails
SATA Connectors
PCI Express Ready
Efficiency: > 80% Typical
Silent 140mm Intake Fan
BFG Thermal Control Technology
Protection Circuitry
MTBF: 80,000 Hours at 25° C
Safety Approval: CCC, CB, UL, TUV, CE, CSA, CUL, NEMKO, SAA, GS, VDE
Dimensions: 8.6cm W x 15cm H x 14cm D (3.4" W x 6" H x 5.5" D)
1 Year Warranty
BFG Tech model BFG4550WGSPSU power supply
DC Output
+3.3V = 35A
+5V = 40A
+3.3V +5V Max. Combined Wattage = 130W
+12V1 = 18A
+12V2 = 18A
+12V Max. Combined Wattage = 432W
-12V = 0.5A
+5VSB = 2.5A
 
Included in Box
1 x 550 Watt Power Supply Unit
1 x US Power Cable
1 x User's Guide
4 x Mounting Screws
 
Connectors
1 x 24-Pin (20+4-Pin) Motherboard Connector
1 x 8-Pin (4+4-Pin) CPU 12V Power Connector
1 x 6-Pin PCI Express Connector
1 x 8-Pin (6+2-Pin) PCI Express Connector
4 x 4-Pin Molex Connectors
1 x 4-Pin Floppy Connector
4 x SATA Connectors (also includes connectors for IDE drives)
 
Works With The Following Motherboards
PCI Express
AGP
PCI
 

Manual

BFG Tech "GS" Series User's Manual - Microsoft Word Document
BFG Tech "GS" Series User's Manual - HTML Document (produced by OpenOffice.org Writer)

References:
  1. GS-550 Power Supply
    BFG Tech
  2. BFG Tech "GS" Series User's Manual
    BFG Tech

[/pc/hardware/power-supply] permanent link

Sat, Jul 15, 2006 7:27 pm

PC Hardware in Garage

I need to start cleaning my garage, so I can at least walk around in it without knocking things over unless I watch my every step. So I've started posting information on items that I plan to sell on eBay.

Items to sell

[/pc/hardware] permanent link

Tue, Feb 07, 2006 12:02 am

Foxconn 661M03-G-6L Motherboard Memory

If you have a motherboard with a BIOS ID string of 10/28/2004-SiS-661-6A7I4FK9C-00, then you have a Foxconn 661M03-G-6L motherboard. The Foxconn 661M03-G-6L Motherboard has two 184-pin DIMM slots. You can use PC 3200, PC 2700, or PC 2100 memory in the slots. The motherboard manual states that it supports 128 MB, 256 MB, or 512 MB modules for a maximum capacity of 2 GB, but if it only supports upt to 512 MB per slot, then the maximum memory you can support is 1 GB.

[ More Info ]

[/pc/hardware/motherboard] permanent link

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