Acer Aspire M1641: Difference between revisions

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Front drive cage is positioned in a way where it may be necessary to remove all internal drives before removing the motherboard, if there is any obstruction this is greatly recommended as the factory drive installation points will cause the drive to hit a leak-danger cap near the floppy port, or (on lower chance) three leak-danger caps next to the RAM slots.
Front drive cage is positioned in a way where it may be necessary to remove all internal drives before removing the motherboard, if there is any obstruction this is greatly recommended as the factory drive installation points will cause the drive to hit a leak-danger cap near the floppy port, or (on lower chance) three leak-danger caps next to the RAM slots.
==Original Parts==
==Original Parts==
===Basic PCB Name===
===Possible leak-risk caps===
''Note model numbers and board revisions here''
''AE caps which are at particular danger of leaking''
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitor [[Capacitor Specifications|Specifications]] and [[Part Footprints|Footprint]] Information
|+Capacitor [[Capacitor Specifications|Specifications]] and [[Part Footprints|Footprint]] Information
Line 61: Line 61:
|EC28, EC29, EC25, EC26, EC72, EC73, EC74||7||1000 µF||6.3v||Through-hole||8mm*||16mm*||3.5mm*||105 °C||Aluminum Electrolytic||Panasonic||  ||Likely higher-ESR, black and grey
|EC28, EC29, EC25, EC26, EC72, EC73, EC74||7||1000 µF||6.3v||Through-hole||8mm*||16mm*||3.5mm*||105 °C||Aluminum Electrolytic||Panasonic||  ||Likely higher-ESR, black and grey
|-
|-
| || ||0 µF|| || || || || ||0 °C|| || || ||
|EC4, EC11, EC107, EC108, EC109, EC110||6||1800 µF||6.3v||Through-hole||8mm*||22mm*||3.5mm*||105 °C||Aluminum Electrolytic||Panasonic||FM possibly?||Low-ESR, black and gold
|-
|EC69, EC68, EC43, EC31, EC33||5||470 µF||16v||Through-hole||8mm||11.5mm||3.5mm||-40~105 °C||Aluminum Electrolytic||United Chemi-Con||KZG||Low-ESR, brown and grey
|}
|}
Measurements with an asterisk are gleaned through measurement, rather than manufacturer specification, and may be imprecise.
''Measurements with an asterisk are gleaned through measurement, rather than manufacturer specification, and may be imprecise.''
 
==Replacement Parts==
==Replacement Parts==
===Basic PCB Name===
===Problem Cap Replacements===
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitors
|+Aluminum Electrolytic Capacitors
!RefDes
!Qty
!Compatible Part Number
!Order Links
!Notes
|-
| EC30, EC71, EC41, EC45, EC57, EC54
EC28, EC29, EC25, EC26, EC72, EC73, EC74
| 13 (6, 7) || OST RLX 6.3v, Panasonic 1000uF ||[https://www.digikey.com/en/products/detail/rubycon/6-3AX1000MEFC8X16/4842272?s=N4IgTCBcDaIGwDoDMBBAGgRgAw4LIFEAxAYQA5M4QBdAXyA DigiKey] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-6-3AX1000MEFC8X16_C1581425.html LCSC]
|
|-
| EC4, EC11, EC107, EC108, EC109, EC110 || 6 || EEU-FR0J152L ||[https://www.digikey.com/en/products/detail/panasonic-electronic-components/EEU-FR0J152L/2433497 Digikey] [https://www.mouser.com/ProductDetail/Panasonic/EEU-FR0J152L?qs=P6akOJY27xVH2gMwMxoTuw%3D%3D Mouser]
|Under-spec
|-
| EC4, EC11, EC107, EC108, EC109, EC110 || 6 || EEU-FS0J182LB ||[https://www.digikey.com/en/products/detail/panasonic-electronic-components/EEU-FS0J182LB/7381149 Digikey] [https://www.mouser.com/ProductDetail/Panasonic/EEU-FS0J182LB?qs=gt1LBUVyoHljKHYQFIcGkA%3D%3D Mouser]
|Over-sized
|-
| EC69, EC68, EC43, EC31, EC33 || 5 || 16ME470WG ||[https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_SUNCON-SUN-Elec-Industries-16ME470WG_C242033.html LCSC]
|
|}
{| class="wikitable"
|+Aluminum Polymer Capacitors
!RefDes
!RefDes
!Qty
!Qty
Line 74: Line 97:
!Order Links
!Order Links
|-
|-
| EC30, EC71, EC41, EC45, EC57, EC54 || 6 || OST RLX 6.3v Caps ||[https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-6-3AX1000MEFC8X16_C1581425.html LCSC]
|EC30, EC71, EC41, EC45, EC57, EC54, EC28, EC29, EC25, EC26, EC72, EC73, EC74
|13
|A750KK108M0JAAE015 / 1026R30610R00
|[https://www.digikey.com/en/products/detail/kemet/A750KK108M0JAAE015/6196437 DigiKey] [https://www.mouser.com/ProductDetail/KEMET/A750KK108M0JAAE015?qs=M6jHmRuQorVeUK%252Bw1IWEAQ%3D%3D Mouser] [https://www.lcsc.com/product-detail/Solid-Capacitors_NJCON-1026R30610R00_C5243863.html LCSC]
|-
|EC4, EC11, EC107, EC108, EC109, EC110
|6
|A750MW188M1CAAE010 / E2182M6R3E130RL
|[https://www.digikey.com/en/products/detail/kemet/A750MW188M1CAAE010/13420149 DigiKey] [https://www.mouser.com/ProductDetail/KEMET/A750MW188M1CAAE010?qs=sGAEpiMZZMvR1wrj203KOIBOOW3024qOFjWclb1ZHWV9coAeL00Z3Q%3D%3D Mouser] [https://www.lcsc.com/product-detail/Solid-Capacitors_Zhaoqing-Ruilong-Elec-E2182M6R3E130RL_C2902678.html LCSC]
|-
|EC69, EC68, EC43, EC31, EC33
|5
|A750EQ477M1CAAE015 / 4710160512R00
|[https://www.digikey.com/en/products/detail/kemet/A750EQ477M1CAAE015/13420057 DigiKey] [https://www.mouser.com/ProductDetail/KEMET/A750EQ477M1CAAE015?qs=vmHwEFxEFR9GgGtKXpsSTA%3D%3D Mouser] [https://www.lcsc.com/product-detail/Solid-Capacitors_NJCON-4710160512R00_C5243841.html LCSC]
|}
|}
'''PREFER ALUMINUM ELECTROLYTIC IF UNSURE'''
''Two of the Panasonic 1800uF capacitors (EC4 and EC11) are crammed closely together. It is not recommendable to change these preventively either way, though particularly much due to difficulty matching electrical specs with a capacitor which will fit.''
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''
[[Category:WorkNeeded:General]]
[[Category:WorkNeeded:OriginalParts]]
[[Category:WorkNeeded:OriginalParts]]
[[Category:WorkNeeded:ReplacementParts]]
[[Category:2000s]]
[[Category:2000s]]
[[Category:Motherboard]]
[[Category:Motherboard]]

Latest revision as of 20:25, 6 July 2023

This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
Acer M1641 Motherboard
Preliminary Information
Release Year 2009
Leak Risk High
Batteries CR232 Clock Backup
Mounting Technology Through Hole, SMD, Sockets
Capacitor Types Aluminum Electrolytic, Polymer
Destructive Entry No

Non-named motherboard from late 00s mATX PC available in multiple configurations, usually shipped with Vista or Windows 7, intended for home use. Motherboard appears with the same PCB in multiple other component configurations on other late-2000s Aspire M desktop PCs, however study may be non-transferrible.

Uses nVidia nForce 7050 chipset, known to reject some normally-valid configurations.

Known Issues

No boot after changing RAM

Causes

  • Total RAM added exceeds 4GB
  • RAM exceeds 2GB per DIMM
  • Total RAM exceeds 3GB (under certain bios configurations)
  • RAM rated speed is too high

Solutions

  • Reduce total RAM
  • Use matched DIMMs
  • Use a 1GB DIMM and a 2GB DIMM, please fill out info if you can identify which bios setting causes this
  • Try DDR2-800 RAM, the system may fail to boot if the RAM reports being too capable in some cases

OS Not Recognizing Working PCIe Expansion Device

Causes

  • The nForce 7050 chip's limited PCIe stability and compliance is affecting your new expansion device
  • Capacitor degradation is causing the device to be rejected

Solutions

  • Use a different expansion device
  • Recap

Disassembly Notes

CR232 clock battery is held in with a spring clip that may be live if the battery has charge.

Expansion cards are installed, from factory, using a metal bar which will usually be sharp.

Front drive cage is positioned in a way where it may be necessary to remove all internal drives before removing the motherboard, if there is any obstruction this is greatly recommended as the factory drive installation points will cause the drive to hit a leak-danger cap near the floppy port, or (on lower chance) three leak-danger caps next to the RAM slots.

Original Parts

Possible leak-risk caps

AE caps which are at particular danger of leaking

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter Height Lead Spacing Temp Type Brand Series Notes
EC30, EC71, EC41, EC45, EC57, EC54 6 1000 µF 6.3v Through-hole 8mm* 16mm* 3.5mm* -40~105 °C Aluminum Electrolytic OST RLX High leak risk, low-ESR, navy and gold
EC28, EC29, EC25, EC26, EC72, EC73, EC74 7 1000 µF 6.3v Through-hole 8mm* 16mm* 3.5mm* 105 °C Aluminum Electrolytic Panasonic Likely higher-ESR, black and grey
EC4, EC11, EC107, EC108, EC109, EC110 6 1800 µF 6.3v Through-hole 8mm* 22mm* 3.5mm* 105 °C Aluminum Electrolytic Panasonic FM possibly? Low-ESR, black and gold
EC69, EC68, EC43, EC31, EC33 5 470 µF 16v Through-hole 8mm 11.5mm 3.5mm -40~105 °C Aluminum Electrolytic United Chemi-Con KZG Low-ESR, brown and grey

Measurements with an asterisk are gleaned through measurement, rather than manufacturer specification, and may be imprecise.

Replacement Parts

Problem Cap Replacements

Aluminum Electrolytic Capacitors
RefDes Qty Compatible Part Number Order Links Notes
EC30, EC71, EC41, EC45, EC57, EC54

EC28, EC29, EC25, EC26, EC72, EC73, EC74

13 (6, 7) OST RLX 6.3v, Panasonic 1000uF DigiKey LCSC
EC4, EC11, EC107, EC108, EC109, EC110 6 EEU-FR0J152L Digikey Mouser Under-spec
EC4, EC11, EC107, EC108, EC109, EC110 6 EEU-FS0J182LB Digikey Mouser Over-sized
EC69, EC68, EC43, EC31, EC33 5 16ME470WG LCSC
Aluminum Polymer Capacitors
RefDes Qty Compatible Part Number Order Links
EC30, EC71, EC41, EC45, EC57, EC54, EC28, EC29, EC25, EC26, EC72, EC73, EC74 13 A750KK108M0JAAE015 / 1026R30610R00 DigiKey Mouser LCSC
EC4, EC11, EC107, EC108, EC109, EC110 6 A750MW188M1CAAE010 / E2182M6R3E130RL DigiKey Mouser LCSC
EC69, EC68, EC43, EC31, EC33 5 A750EQ477M1CAAE015 / 4710160512R00 DigiKey Mouser LCSC

PREFER ALUMINUM ELECTROLYTIC IF UNSURE Two of the Panasonic 1800uF capacitors (EC4 and EC11) are crammed closely together. It is not recommendable to change these preventively either way, though particularly much due to difficulty matching electrical specs with a capacitor which will fit.

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

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