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Auction: IBM PS/2 Model 90 XP 486 Personal Computer (Way to go, Ohio!)

http://search.ebay.com/300528523150

Feb 27, 201106:58:53 PST

PSU has high pitched whine, op is correct.
0
ohland (44)
2/26/2011 3:48:11 AM
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Hi Louis,

> PSU has high pitched whine, op is correct.
Do you know this machine?

Seller has gone through great lengths to remove data :
"The disks have been removed from the hard drive."
And then:
"The hard drive has been reinstalled (but not connected) because the part 
number can be found on the housing."

Wouldn't it have been easier and quicker to photocopy the labels and put the 
copies in the machine??

-- 
Jelte,
Admirer of the letter of IBM with blue Ishiki 

0
JWR
2/26/2011 9:40:27 AM
On 2/26/2011 03:40, JWR wrote:
> Hi Louis,
>
>> PSU has high pitched whine, op is correct.
> Do you know this machine?
>
> Seller has gone through great lengths to remove data :
> "The disks have been removed from the hard drive."
> And then:
> "The hard drive has been reinstalled (but not connected) because the
> part number can be found on the housing."
>
> Wouldn't it have been easier and quicker to photocopy the labels and put
> the copies in the machine??
>

Well, if the drive is there, it may have the sled. Find a 50 pin SE SCSI 
drive, install Spock, add a complex, mix in memory risers, and waa-laa, 
a system. Oops, add a PSU. There are extras floating about...
0
Louis
2/26/2011 1:44:36 PM
Does the 90 use the same power supply as a model 80 or another model?

"Louis Ohland" <ohland@charter.net> wrote in message 
news:7t7ap.12996$QD2.934@newsfe10.iad...
> On 2/26/2011 03:40, JWR wrote:
>> Hi Louis,
>>
>>> PSU has high pitched whine, op is correct.
>> Do you know this machine?
>>
>> Seller has gone through great lengths to remove data :
>> "The disks have been removed from the hard drive."
>> And then:
>> "The hard drive has been reinstalled (but not connected) because the
>> part number can be found on the housing."
>>
>> Wouldn't it have been easier and quicker to photocopy the labels and put
>> the copies in the machine??
>>
>
> Well, if the drive is there, it may have the sled. Find a 50 pin SE SCSI 
> drive, install Spock, add a complex, mix in memory risers, and waa-laa, a 
> system. Oops, add a PSU. There are extras floating about... 


0
TeoZ
2/26/2011 7:26:02 PM
On Feb 26, 2:26=A0pm, "TeoZ" <t...@neo.rr.com> wrote:
> Does the 90 use the same power supply as a model 80 or another model?

The 8590 and 9590 use the same power supply, and it's an "odd duck",
you are unlikely to find it used anywhere else.

Rick Ekblaw
0
RickE
2/26/2011 7:46:42 PM
> The 8590 and 9590 use the same power supply, and it's an
> "odd duck", you are unlikely to find it used anywhere else.
     There is also the PSU for the 5494, but even rarer and a lower
wattage...

     I wonder if an ATX PSU could be adapted easily enough...
                    David
                    David@IBMMuseum.com
0
IBMMuseum
2/26/2011 9:28:08 PM
Hi David !

>      I wonder if an ATX PSU could be adapted easily enough...

At least in theory.
The format is clsoe enough and you may need to invest some time and 
-probably- crap out an existing 90-PSU for cables and mechanical parts.

Other than that you won't need the 3.3V supply and you need to alter the 
power switch circuitry a bit. So your "new" ATX supply needs to have 
enough power on the 12 and 5V circuitry to get the box going. Usually 
these are combined ratings for all supplies together. Don't know how 
ATX's react if you don't use the 3.3V.
-- 
Very friendly greetings from Peter in Germany
http://www.mcamafia.de/mcapage0/mcaindex.htm

*** Reply to: peterwendt@mcamafia.de only ! ***
0
Peter
2/27/2011 11:09:07 AM
Peter H. Wendt wrote:
> At least in theory.
> The format is clsoe enough and you may need to invest some time and
> -probably- crap out an existing 90-PSU for cables and mechanical parts.

I suspect that adapting one of the earlier clone power supplies would be 
easier, since the 9590 only needs +5V, +/- 12V -- even the power switch 
logic would be compatible with the older 80486 and early Pentium power 
supplies.  Some of them were small enough to fit inside the 9590 case, 
too.  If I were to do a job like this, I'd be tempted to solder a cable 
assembly to the planar contacts to provide a compatible plug point for 
the new power supply, the standard 9590 supply often suffers from 
oxidation at the contacts with the power supply cables.

Rick Ekblaw
0
Rick
2/27/2011 5:37:53 PM
Anybody here win it? I put a low bid in (have a 90 that works anyway) but 
was outbid.


"Rick Ekblaw" <ekblaw@vnet.ibm.com> wrote in message 
news:3_mdnQcLxrc6EffQnZ2dnUVZ_vGdnZ2d@westnet.com.au...
> Peter H. Wendt wrote:
>> At least in theory.
>> The format is clsoe enough and you may need to invest some time and
>> -probably- crap out an existing 90-PSU for cables and mechanical parts.
>
> I suspect that adapting one of the earlier clone power supplies would be 
> easier, since the 9590 only needs +5V, +/- 12V -- even the power switch 
> logic would be compatible with the older 80486 and early Pentium power 
> supplies.  Some of them were small enough to fit inside the 9590 case, 
> too.  If I were to do a job like this, I'd be tempted to solder a cable 
> assembly to the planar contacts to provide a compatible plug point for the 
> new power supply, the standard 9590 supply often suffers from oxidation at 
> the contacts with the power supply cables.
>
> Rick Ekblaw 


0
TeoZ
2/27/2011 5:53:13 PM
Hi Peter,
>> ...I wonder if an ATX PSU could be adapted easily enough...
>
> At least in theory.
> The format is clsoe enough and you may need to invest some time and
> -probably- crap out an existing 90-PSU for cables and mechanical parts.
>
> Other than that you won't need the 3.3V supply and you need to alter the
> power switch circuitry a bit. So your "new" ATX supply needs to have
> enough power on the 12 and 5V circuitry to get the box going. Usually
> these are combined ratings for all supplies together. Don't know how
> ATX's react if you don't use the 3.3V.

I would have said "AT" (without the 3.3V rail), but those typically
have mechanical power switches...
                             David
                             David@IBMMuseum.com
0
IBMMuseum
2/27/2011 8:49:21 PM
TeoZ wrote:
> Anybody here win it? I put a low bid in (have a 90 that works anyway) but
> was outbid.

"Not I", said the Little Red Hen.  I've got enough stuff here to satisfy 
my tinkering ways for quite a while, I've got no need to add to it 
(unless it was something *very* special).  A 9371-114 would be worth 
pursuing, for example.

Rick Ekblaw

0
Rick
3/1/2011 12:10:21 AM
Reply:

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