another HP....

**kato2274** · May 14th, 2003, 12:32 PM

hp and compaq have been using custom ASUS boards for some time now.

I like geoscomps suggestion to pull the battery. it might also be prudent if possible to pull everything and remove the board from the case and try to run it on the bench with just video ram and pocessor.

see if you can get the sucker to beep if you yank the video card and power it on, same with RAM. that will give some indication of whether the processor is okay.

**Archangel42069** · May 14th, 2003, 12:36 PM

Originally posted by kato2274
hp and compaq have been using custom ASUS boards for some time now.

I like geoscomps suggestion to pull the battery. it might also be prudent if possible to pull everything and remove the board from the case and try to run it on the bench with just video ram and pocessor.

see if you can get the sucker to beep if you yank the video card and power it on, same with RAM. that will give some indication of whether the processor is okay.

True that...will try it and let you know.

**swamprat** · May 14th, 2003, 12:37 PM

I've had 2 HP's in the shop this past week. Both not showing a screen, and not posting. Think both have bad psu's. Proprietary psu's also

**jfesler** · May 14th, 2003, 01:15 PM

Although I haven't had this specific problem on a HP, I have had it a lot with 3rd party computers (more so with AMD MB) Replacing the motherboard always took care of it.

**Archangel42069** · May 14th, 2003, 02:30 PM

Originally posted by jfesler
Although I haven't had this specific problem on a HP, I have had it a lot with 3rd party computers (more so with AMD MB) Replacing the motherboard always took care of it.

Not really an option here...custom mobo, proprietary PSU...he will probably be getting a barebones and scavenging what he can. It's got an 80gb HD, cdrw, dvd, 512mb ddr266...so it will have a little to contribute to its offspring.

***DonJ*** · May 14th, 2003, 04:01 PM

Can you locate a part number for that power supply? They are usually in the form of 0950-xxxx or 5185-xxxx. Quite often, HP's supplies can be replaced with a suitable generic substitue.

Check out HP Cross-Reference. Perform a Ctnl-F...enter 750. It finds a Pavilion 750 CTO...but I don't believe this is the same as a 750n.

**Archangel42069** · May 14th, 2003, 04:12 PM

Originally posted by DonJ
Can you locate a part number for that power supply? They are usually in the form of 0950-xxxx. Quite often, HP's supplies can be replaced with a suitable generic substitue.

I think so...is it that funny writing on the back? The one that says "115v"?

***DonJ*** · May 14th, 2003, 04:21 PM

Originally posted by Archangel42069
I think so...is it that funny writing on the back? The one that says "115v"?

Funny guy...

***DonJ*** · May 14th, 2003, 04:37 PM

Another FYI: HP Pavilion - Motherboard Specifications, ASUS P4B266-LA.
Looks like it comes with S3 Power Management Support.

EDIT: Getting back to the power supply...is it possible that it is a 0950-4104? Specs: 200 watt power supply (HV, power factor correction (PFC), Bestec ATX-1956F) - 100-127VAC and 200-240VAC input (switch selectable), 50/60Hz - Total of either 7 or 8 output connectors (either version will work properly)

**Archangel42069** · May 14th, 2003, 04:55 PM

Originally posted by DonJ
Another FYI:
HP Pavilion - Motherboard Specifications, ASUS P4B266-LA. Looks like it comes with S3 Power Management Support.

EDIT: Getting back to the power supply...is it possible that it is a 0950-4104? Specs: 200 watt power supply (HV, power factor correction (PFC), Bestec ATX-1956F) - 100-127VAC and 200-240VAC input (switch selectable), 50/60Hz - Total of either 7 or 8 output connectors (either version will work properly)

Actually, that would be the one...I googled it a couple of hours ago...we aren't interested in spending cash on a replacement if we aren't sure though...and since I don't happen to have another p4-ready psu lying around...there is no way to test it.

***DonJ*** · May 14th, 2003, 05:12 PM

Looks like these guys have them for $50, plus shipping.

It has an Important Note concerning the "P8" 4-pin connector.

**notsobetter** · May 15th, 2003, 06:49 AM

The first thing to do is check the capacitors on the board. If you see any of them, large or small, that are pushed up then you have a bad board. They should all be flat. ANY rise in the capacitors will result in your problem.

Second. Unplug all devices from the powersupply. That includes modmes, networkcards etc....Just have the video, memory and CPU plugged in. If it boots, then begin replacing the cards and plugging things back in. If it's a crad then it's probably a modem or network card causing the problem.

Take the CPU out and re-seat it.

If you still have no power then most likely it's a bad powersupply or something else on the board.

**studio502** · May 15th, 2003, 08:40 AM

leaky capacitors

http://www.spectrum.ieee.org/WEBONLY...eb03/ncap.html

**Archangel42069** · May 15th, 2003, 10:58 AM

Originally posted by notsobetter
The first thing to do is check the capacitors on the board. If you see any of them, large or small, that are pushed up then you have a bad board. They should all be flat. ANY rise in the capacitors will result in your problem.

Second. Unplug all devices from the powersupply. That includes modmes, networkcards etc....Just have the video, memory and CPU plugged in. If it boots, then begin replacing the cards and plugging things back in. If it's a crad then it's probably a modem or network card causing the problem.

Take the CPU out and re-seat it.

If you still have no power then most likely it's a bad powersupply or something else on the board.

It has power, just won't boot. I'm gonna try it outside the case and see what happens. It looks, though, like studio has the right idea. The idea was nagging at the back of my head, but I couldn't figure out why I thought that, so I didn't check it.

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