I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
with part numbers 011305-101 and 011306-000.
From what I can tell these are the basis for a Deskpro SB (?) machine, but
none of them will boot! They have on-board graphics, and a memory card
marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
I have tried various processors and memory sticks - the LEDs on the board
light when I plug in the PS and trip the 'power on' pins, but no boot!
I notice that some of the pins to the panel are marked SCSI LED and
LOOPBACK - are either of these crucial to the boot sequence?
I ***THINK*** I have run into this motherboard. This is a full ATX board?
Check the power supply connector, counting its "pins". IIRC, it is 24-pin,
rather than the more usual 20-pin ATX connector of that era. I had some that
used 800MHz Pentium 3 CPUs. The SCSI LED and LOOPBACK jumpers are not critical.
The pinout from the motherboard to the front panel (on-off momentary switch,
power-on LED, HDD active LED) is something I cannot remember... Ben Myers
On Mon, 30 Jun 2008 15:20:35 +0100, "Peter Allison" <pwallison@ntlworld.com>
wrote:
>I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
>with part numbers 011305-101 and 011306-000.
>
>From what I can tell these are the basis for a Deskpro SB (?) machine, but
>none of them will boot! They have on-board graphics, and a memory card
>marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
>
>I have tried various processors and memory sticks - the LEDs on the board
>light when I plug in the PS and trip the 'power on' pins, but no boot!
>I notice that some of the pins to the panel are marked SCSI LED and
>LOOPBACK - are either of these crucial to the boot sequence?
>
>Any help appreciated!!
>
>Peter Allison
>Swindon, UK.
>
"Peter Allison" <pwallison@ntlworld.com> wrote in message
news:XX5ak.96238$8H5.50928@newsfe10.ams2...
>I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
>with part numbers 011305-101 and 011306-000.
>
> From what I can tell these are the basis for a Deskpro SB (?) machine,
> but none of them will boot! They have on-board graphics, and a memory
> card marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
>
> I have tried various processors and memory sticks - the LEDs on the
> board light when I plug in the PS and trip the 'power on' pins, but no
> boot!
By 'BOOT' do you mean " any visible power up sequence " ?
or do you have a drive in there ?
> I notice that some of the pins to the panel are marked SCSI LED and
> LOOPBACK - are either of these crucial to the boot sequence?
>
> Any help appreciated!!
>
> Peter Allison
> Swindon, UK.
Do you know memory cards are good ?
If you remove memory - do you get beep code ?
I have used a power supply with a 24-pin connector, should that not do the
trick?
Peter
"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
news:0pli64t8ges190vod7msqq40hdfokg6vp0@4ax.com...
>I ***THINK*** I have run into this motherboard. This is a full ATX board?
> Check the power supply connector, counting its "pins". IIRC, it is
> 24-pin,
> rather than the more usual 20-pin ATX connector of that era. I had some
> that
> used 800MHz Pentium 3 CPUs. The SCSI LED and LOOPBACK jumpers are not
> critical.
> The pinout from the motherboard to the front panel (on-off momentary
> switch,
> power-on LED, HDD active LED) is something I cannot remember... Ben Myers
>
> On Mon, 30 Jun 2008 15:20:35 +0100, "Peter Allison"
> <pwallison@ntlworld.com>
> wrote:
>
>>I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
>>with part numbers 011305-101 and 011306-000.
>>
>>From what I can tell these are the basis for a Deskpro SB (?) machine, but
>>none of them will boot! They have on-board graphics, and a memory card
>>marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
>>
>>I have tried various processors and memory sticks - the LEDs on the board
>>light when I plug in the PS and trip the 'power on' pins, but no boot!
>>I notice that some of the pins to the panel are marked SCSI LED and
>>LOOPBACK - are either of these crucial to the boot sequence?
>>
>>Any help appreciated!!
>>
>>Peter Allison
>>Swindon, UK.
>>
The pins marked 'loopback' are on the motherboard alongside the 'power
switch' pins.
LEDs light up, but power supply fan does not run and no beeps or POST
messages.
Peter
"- Bobb -" <bobb@noemail.123> wrote in message
news:IKWdnZwxafYyL_fVnZ2dnUVZ_sednZ2d@comcast.com. ..
>
> "Peter Allison" <pwallison@ntlworld.com> wrote in message
> news:XX5ak.96238$8H5.50928@newsfe10.ams2...
>>I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
>>with part numbers 011305-101 and 011306-000.
>
> https://www.serversupply.com/product...p?q=011305-101
>
> http://www.serversupply.com/MOTHERBO...011305-101.htm
>
>>
>> From what I can tell these are the basis for a Deskpro SB (?) machine,
>> but none of them will boot! They have on-board graphics, and a memory
>> card marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
>>
>
> http://www.shopping.com/xPO-Samsung-...-Memory-Module
>
>> I have tried various processors and memory sticks - the LEDs on the board
>> light when I plug in the PS and trip the 'power on' pins, but no boot!
>
> By 'BOOT' do you mean " any visible power up sequence " ?
> or do you have a drive in there ?
>
>> I notice that some of the pins to the panel are marked SCSI LED and
>> LOOPBACK - are either of these crucial to the boot sequence?
>>
>> Any help appreciated!!
>>
>> Peter Allison
>> Swindon, UK.
>
> Do you know memory cards are good ?
> If you remove memory - do you get beep code ?
>
> The SCSI LED would just show disk activity.
> "Loopback pins" This is on the front panel ? or motherboard ?
> ===
> BTW all HP Socket 370 motherboards on his site:
> http://www.shopping.com/-socket+370+...boards+Hewlett
You need the specific Compaq 24-pin power supply intended for this motherboard.
Why did Compaq use a 24-pin power supply? Why do any of these companies use
such proprietary hardware? Dell did similar extremely stupid things with its
Pentium 3 systems, too. Unfortunately, I seriously doubt that the pinout on a
newer P4 24-pin power supply matches this one... Ben Myers
>Yes, Ben, that's the one.
>
>I have used a power supply with a 24-pin connector, should that not do the
>trick?
>
>Peter
>
>
>"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
>news:0pli64t8ges190vod7msqq40hdfokg6vp0@4ax.com.. .
>>I ***THINK*** I have run into this motherboard. This is a full ATX board?
>> Check the power supply connector, counting its "pins". IIRC, it is
>> 24-pin,
>> rather than the more usual 20-pin ATX connector of that era. I had some
>> that
>> used 800MHz Pentium 3 CPUs. The SCSI LED and LOOPBACK jumpers are not
>> critical.
>> The pinout from the motherboard to the front panel (on-off momentary
>> switch,
>> power-on LED, HDD active LED) is something I cannot remember... Ben Myers
>>
>> On Mon, 30 Jun 2008 15:20:35 +0100, "Peter Allison"
>> <pwallison@ntlworld.com>
>> wrote:
>>
>>>I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
>>>with part numbers 011305-101 and 011306-000.
>>>
>>>From what I can tell these are the basis for a Deskpro SB (?) machine, but
>>>none of them will boot! They have on-board graphics, and a memory card
>>>marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
>>>
>>>I have tried various processors and memory sticks - the LEDs on the board
>>>light when I plug in the PS and trip the 'power on' pins, but no boot!
>>>I notice that some of the pins to the panel are marked SCSI LED and
>>>LOOPBACK - are either of these crucial to the boot sequence?
>>>
>>>Any help appreciated!!
>>>
>>>Peter Allison
>>>Swindon, UK.
>>>
>
As you say, why people like Compaq and Dell do this, just to frustrate
people like you and I!
I guess the P4 24-pin power supply hadn't been invented when these boards
came out!
Fortunately the person who sold me these three boards has been very
understanding so far, now I need to see if they can see my point of view!
Peter
"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
news:1i0n64129ipasq4e27kkbfm5n36222n297@4ax.com...
> Peter,
>
> You need the specific Compaq 24-pin power supply intended for this
> motherboard.
> Why did Compaq use a 24-pin power supply? Why do any of these companies
> use
> such proprietary hardware? Dell did similar extremely stupid things with
> its
> Pentium 3 systems, too. Unfortunately, I seriously doubt that the pinout
> on a
> newer P4 24-pin power supply matches this one... Ben Myers
>
> On Wed, 2 Jul 2008 11:25:44 +0100, "Peter Allison"
> <pwallison@ntlworld.com>
> wrote:
>
>>Yes, Ben, that's the one.
>>
>>I have used a power supply with a 24-pin connector, should that not do the
>>trick?
>>
>>Peter
>>
>>
>>"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
>>news:0pli64t8ges190vod7msqq40hdfokg6vp0@4ax.com. ..
>>>I ***THINK*** I have run into this motherboard. This is a full ATX
>>>board?
>>> Check the power supply connector, counting its "pins". IIRC, it is
>>> 24-pin,
>>> rather than the more usual 20-pin ATX connector of that era. I had some
>>> that
>>> used 800MHz Pentium 3 CPUs. The SCSI LED and LOOPBACK jumpers are not
>>> critical.
>>> The pinout from the motherboard to the front panel (on-off momentary
>>> switch,
>>> power-on LED, HDD active LED) is something I cannot remember... Ben
>>> Myers
>>>
>>> On Mon, 30 Jun 2008 15:20:35 +0100, "Peter Allison"
>>> <pwallison@ntlworld.com>
>>> wrote:
>>>
>>>>I have acquired three Socket 370 motherboards, marked 305 Rev0AS21, also
>>>>with part numbers 011305-101 and 011306-000.
>>>>
>>>>From what I can tell these are the basis for a Deskpro SB (?) machine,
>>>>but
>>>>none of them will boot! They have on-board graphics, and a memory card
>>>>marked "4Mb AIMM 133Mhz CL3" is provided for the AGP slot.
>>>>
>>>>I have tried various processors and memory sticks - the LEDs on the
>>>>board
>>>>light when I plug in the PS and trip the 'power on' pins, but no boot!
>>>>I notice that some of the pins to the panel are marked SCSI LED and
>>>>LOOPBACK - are either of these crucial to the boot sequence?
>>>>
>>>>Any help appreciated!!
>>>>
>>>>Peter Allison
>>>>Swindon, UK.
>>>>
>>
Mystery motherboards - Compaq Deskpro SB - won't boot 
Linear Mode
