2: SunPCi Upgrade
2007-12-25 11:25:00
I have some "old" SunPCi cards with the 300Mhz processors. Is there any
way to upgrade the processor on this card?
-----------------------------------------------------------------------
I finally received a response from Wieland Stübinger that has all the
info I need. It's in German, but still readable.
After talking to him on the phone, I have a pretty good understanding of
the tables below.
He tried various jumper settings and came up with the following tables.
JP4 is the set of jumpers located next to the CPU. It specifies the clock
multiplier.
JP1-3 is located next to the DIMM slots. These jumpers set the clock
frequency. If you look at the table below, you can see that the frequency
seems to depend on the multiplier.
Anyway, it looks like you should be able to change out the 300Mhz CPU for
a 400Mhz CPU by just changing the multiplier from 4.5 to 6. I'll give it
a try and post results.
Thanks Wieland and good luck in Singapore.
Frank
==================================================
| Frank Velazquez |
| Siemens Information and Communication Networks |
| frank@hwdev.icn.siemens.com |
==================================================
Wieland's post here:
-------------------------------------------------------------------------
JP4 = Clock-Multiplier
----------------------
65
43
21 die 3Jumper direkt nebe der CPU
-----
|CPU|
-----
| | bei 66.8 |
| 2 4 5 | MHZ Bustakt |
| 1 3 5 | ergibt dies |
-----|-------|-------------|
6 | x | 400 |
5.5 | x | 366 |
5 | x x | 333 |
-----|-------|-------------|
4.5 | x x x | 300 | ---> Default bei meinem Board
4 | x x | 266 |
3.5 | | 233 |
-----|-------|-------------|
3 | x | 200 |
2.5 | x x | 166 |
bei 6*75Mhz --> sollte (nach Chipsatz) 450 Mhz möglich sein
JK1-3 = Frequenz
----------------
1 2 3 Default= 66,8 Mhz
JK3 - - . |
JK2 - - . | Boardaußenseite
JK1 - - . |
x x
x x
x x
x x
DIMMS
Ich habe einjach male "rumgejumpert" und die Karte gebootet.
Die Mhz-Werte sind die, die das BIOS gezeigt hat und die
angegebene MHZ-Zahl ist die umgerechnete Zahl Freq/Teiler.
Die wirkliche Freq. konnte ich nicht ermitteln, da der 350er
nicht immer stabil gebootet hat ... ist ja auch was viel verlangt ...
Es scheint nicht direkt der Bustakt eingestellt zu werden !!!!
| 6.0 | 5.5 | 5.0 | 4.5 | 4.0 | 3.5 | 3.0 | 2.5 |
----------------------------------------------------------------------
--. | 400 | 366 | 333 D 300 D | 233 | | |
--. | | | D D | | | |
--. | 66.68 | 66.55 | 66.60 D 66.68 D | 66.57 | | |
----------------------------------------------------------------------
.-- | 400 | 266 | 333 | 300 | | 240 | | |
--. | | | | | | | | |
--. | 66.68 | 48.36 | 66.60 | 66.68 | | 68.57 | | |
----------------------------------------------------------------------
.-- | 400 | 400 | 366 | 366 | | 266 | | |
.-- | | | | | | | | |
--. | 66.68 | 72.73 | 73.20 | 81.33 | | 76.00 | | |
----------------------------------------------------------------------
.-- | 400 | 400 | 400 | 366 | | 266 | | |
.-- | | | | | | | | |
.-- | 66.68 | 72.73 | 80.00 | 81.33 | | 76.00 | | |
----------------------------------------------------------------------
--. | 300 | 300 | 266 | 240 | | 193 | | |
.-- | | | | | | | | |
.-- | 50.00 | 54.55 | 53.20 | 53.33 | | 55.14 | | |
----------------------------------------------------------------------
--. | 333 | 300 | 300 | 266 | | 210 | | |
--. | | | | | | | | |
.-- | 55.00 | 54.55 | 60.00 | 59.11 | | 60.00 | | |
----------------------------------------------------------------------
.-- | 366 | 333 | 300 | 266 | | 210 | | |
--. | | | | | | | | |
.-- | 61.00 | 60.54 | 60.00 | 59.11 | | 60.00 | | |
----------------------------------------------------------------------
--. | 400 | 400 | 366 | 333 | | 266 | | |
.-- | | | | | | | | |
--. | 66.68 | 72.72 | 73.20 | 74.00 | | 76.00 | | |
----------------------------------------------------------------------
- bei 5.0 schein mit 400Mhz und 80Mhz Bustakt das Maximum erreicht zu sein ...
- ich fahre die 300er (=350er) mit 366 bei 5.0 (73,20) und es geht ...
---> 366 bei 4.5 und 81,33 war mir was viel, angeblich kann
der Chipsatz ja nur 75 Mhz
--
---
*Wieland Stübinger Tel.:Office 49-89-722-36108 *
*82031 Grünwald e-mail: stuebi@stuebi.de *
*Germany nic-hdl: WS6-RIPE *
* Real programmers don`t comment. *
* Something hard to write should be hard to read. *
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