Difference between revisions of "EPower"
m (→Installing the module) |
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[[File:EPprepared.jpg|thumb|left|300px|Prepared mainboard]] | [[File:EPprepared.jpg|thumb|left|300px|Prepared mainboard]] | ||
==Installing the module== | ==Installing the module== | ||
− | [[File:EPower_fitting.jpg|thumb| | + | [[File:EPower_fitting.jpg|thumb|200px|Module fitting]] |
+ | [[File:EPower_pins.jpg|thumb|200px|Cut the excess of pins]] | ||
The module pins are matched to holes after the components: | The module pins are matched to holes after the components: | ||
* D2 (both holes), | * D2 (both holes), | ||
Line 55: | Line 56: | ||
* C8 (+9V), | * C8 (+9V), | ||
* U21 (output +12V). | * U21 (output +12V). | ||
+ | The holes in which the module is installed should be very carefully cleaned of tin residues.<br> | ||
+ | Especially the holes after the transistor TR3 and the U21 chip due to their smaller diameter.<br> | ||
+ | '''Do not force the pins.''' Despite careful assembly, it is possible to slightly tilt the pins from the vertical. They should be corrected if necessary.<br> | ||
+ | The position of the pins is very precisely matched and the module should be allow gently slide into place.<br> | ||
+ | When soldering, make sure that the module adheres to the main board (up to the height of pin spacers).<br> | ||
+ | After assembly, cut out the excess of tips with a pair of pliers. | ||
=Links= | =Links= | ||
Thread on the Enterprise Forever forum [https://enterpriseforever.com/hardware/enterprise-power-module-epower/ Enterprise Power module - EPower] | Thread on the Enterprise Forever forum [https://enterpriseforever.com/hardware/enterprise-power-module-epower/ Enterprise Power module - EPower] |
Revision as of 18:28, 15 May 2018
Contents
Brief information
The EPower module replaces the original Enterprise power circuits.
Specification
The module has three power sources:
- 12 V @ 0.7 A,
- 5 V @ 1.5 A channel A,
- 5 V @ 1.5 A channel B.
The current limitation of the 5 V stabilizer is set at 3.7 A [I = 37125 / R1] (the maximum possible current is 7 A, if need, but it could damage the circuitry of the computer).
Maximum values (limited by permissible current of the power filters) are:
- 12 V @ 1.2 A,
- 5 V @ 2.5 A per channel (both 5A+5B @ 4.5[A]).
This is much more than the original power source (12[V] @ 0.15[A] and 2x 5[V] @ 1[A]).
How to install
The author has made every effort to make the module as reliable and safe to use as possible. However,
You make any modifications inside of your equipment at your own risk !
What you need
- EPower module
- screwdriver
- soldering iron
- tin extractor
- solder tin
- pliers
Enterprise mainboard preparation
The following components should be desoldered from the motherboard:
- C8 (100 µF)
- C9 (100 µF)
- C10 (100 µF)
- C11 (100 µF)
- C12 (100 µF)
- D2 (1N4001)
- D3 (1N4001)
- D4 (1N4001)
- L1 (coil)
- U19 (LM7805)
- U20 (LM7805)
- U21 (LM78L12)
- TR2 (BC337)
- TR3 (BC212)
- R13 (100 Ω)
- R14 (10 Ω)
- R15 (1.5 kΩ)
- R16 (3.9 kΩ)
Installing the module
The module pins are matched to holes after the components:
- D2 (both holes),
- TR3 (ground),
- C8 (+9V),
- U21 (output +12V).
The holes in which the module is installed should be very carefully cleaned of tin residues.
Especially the holes after the transistor TR3 and the U21 chip due to their smaller diameter.
Do not force the pins. Despite careful assembly, it is possible to slightly tilt the pins from the vertical. They should be corrected if necessary.
The position of the pins is very precisely matched and the module should be allow gently slide into place.
When soldering, make sure that the module adheres to the main board (up to the height of pin spacers).
After assembly, cut out the excess of tips with a pair of pliers.
Links
Thread on the Enterprise Forever forum Enterprise Power module - EPower