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Versão atual de: Andrew Optimus Goldheart ,

Título:

8-Core will not boot - Graphic card runs loud and oscolates (cycles)

Texto:

I have a 2007 8-core MAC PRO. About two years ago, I got rid of the stock GPU and purchased an ATI Radeon HD4890 for it.

All was working well until the other night all of the sudden the fan became very loud and started oscolating (cycling) between loud and less loud. About every second was the pattern of sound.

The system will not boot now. No beeps, errors, etc. The only thing I see is that there are two small LED's for CPUA and CPUB that are on, along with a label by them that says "overtemp". Those are on. If I hit the little reset button by them, I can turn the led's off.

In diagnosing, I purshased another ATI 5770 single card slot and put that in. Still won't boot up. I can also hear a very faint ossolating sound with this card too, but it's definitely not as noticeable.

I've pulled out the card and ram and tried running it. No beeps, etc.

I'm thinking that it might be a bad PSU, but hate to buy one on speculation. Any other thoughts?

Thanks

dispositivo:

Mac Pro First Generation
Mac Pro First Generation

Status:

open

Resposta Aceita:

53503

Editado por: David ,

Título:

8-Core will not boot - Graphic card runs loud and oscolates (cycles)

Texto:

I have a 2007 8-core MAC PRO. About two years ago, I got rid of the stock GPU and purchased an ATI Radeon HD4890 for it.

All was working well until the other night all of the sudden the fan became very loud and started oscolating (cycling) between loud and less loud. About every second was the pattern of sound.

The system will not boot now. No beeps, errors, etc. The only thing I see is that there are two small LED's for CPUA and CPUB that are on, along with a label by them that says "overtemp". Those are on. If I hit the little reset button by them, I can turn the led's off.

In diagnosing, I purshased another ATI 5770 single card slot and put that in. Still won't boot up. I can also hear a very faint ossolating sound with this card too, but it's definitely not as noticeable.

I've pulled out the card and ram and tried running it. No beeps, etc.

I'm thinking that it might be a bad PSU, but hate to buy one on speculation. Any other thoughts?

Thanks

dispositivo:

Mac Pro

Status:

open

Resposta Aceita:

53503

Editado por: David ,

Título:

Will8-Core will not boot - GraphicsGraphic card runs loud and oscolates (cycles)
Will8-Core will not boot - GraphicsGraphic card runs loud and oscolates (cycles)

Texto:

I have a 2007 8-core MAC PRO. About two years ago, I got rid of the stock GPU and purchased an ATI Radeon HD4890 for it.

All was working well until the other night all of the sudden the fan became very loud and started oscolating (cycling) between loud and less loud. About every second was the pattern of sound.

The system will not boot now. No beeps, errors, etc. The only thing I see is that there are two small LED's for CPUA and CPUB that are on, along with a label by them that says "overtemp". Those are on. If I hit the little reset button by them, I can turn the led's off.

In diagnosing, I purshased another ATI 5770 single card slot and put that in. Still won't boot up. I can also hear a very faint ossolating sound with this card too, but it's definitely not as noticeable.

I've pulled out the card and ram and tried running it. No beeps, etc.

I'm thinking that it might be a bad PSU, but hate to buy one on speculation. Any other thoughts?

Thanks

dispositivo:

Mac Pro

Status:

open

Editado por: David ,

Título:

Will not boot - Graphics card runs loud and ossolatesoscolates (cycles)
Will not boot - Graphics card runs loud and ossolatesoscolates (cycles)

Texto:

I have a 2007 8-core MAC PRO. About two years ago, I got rid of the stock GPU and purchased an ATI Radeon HD4890 for it.
 
All was working well until the other night all of the sudden the fan became very loud and started ossolatingoscolating (cycling) between loud and less loud. About every second was the pattern of sound.
All was working well until the other night all of the sudden the fan became very loud and started ossolatingoscolating (cycling) between loud and less loud. About every second was the pattern of sound.
 
The system will not boot now. No beeps, errors, etc. The only thing I see is that there are two small LED's for CPUA and CPUB that are on, along with a label by them that says "overtemp". Those are on. If I hit the little reset button by them, I can turn the led's off.
 
In diagnosing, I purshased another ATI 5770 single card slot and put that in. Still won't boot up. I can also hear a very faint ossolating sound with this card too, but it's definitely not as noticeable.
 
I've pulled out the card and ram and tried running it. No beeps, etc.
 
I'm thinking that it might be a bad PSU, but hate to buy one on speculation. Any other thoughts?
 
Thanks

dispositivo:

Mac Pro

Status:

open

Editado por: Chris Green ,

Título:

Will not boot - Graphics card runs loud and ossolates

Texto:

I have a 2007 8-core MAC PRO. About two years ago, I got rid of the stock GPU and purchased an ATI Radeon HD4890 for it.

All was working well until the other night all of the sudden the fan became very loud and started ossolating (cycling) between loud and less loud. About every second was the pattern of sound.

The system will not boot now. No beeps, errors, etc. The only thing I see is that there are two small LED's for CPUA and CPUB that are on, along with a label by them that says "overtemp". Those are on. If I hit the little reset button by them, I can turn the led's off.

In diagnosing, I purshased another ATI 5770 single card slot and put that in. Still won't boot up. I can also hear a very faint ossolating sound with this card too, but it's definitely not as noticeable.

I've pulled out the card and ram and tried running it. No beeps, etc.

I'm thinking that it might be a bad PSU, but hate to buy one on speculation. Any other thoughts?

Thanks

dispositivo:

Power Mac G5Mac Pro
Power Mac G5Mac Pro

Status:

open

Postagem original de: David ,

Título:

Will not boot - Graphics card runs loud and ossolates

Texto:

I have a 2007 8-core MAC PRO. About two years ago, I got rid of the stock GPU and purchased an ATI Radeon HD4890 for it.

All was working well until the other night all of the sudden the fan became very loud and started ossolating (cycling) between loud and less loud. About every second was the pattern of sound.

The system will not boot now. No beeps, errors, etc. The only thing I see is that there are two small LED's for CPUA and CPUB that are on, along with a label by them that says "overtemp". Those are on. If I hit the little reset button by them, I can turn the led's off.

In diagnosing, I purshased another ATI 5770 single card slot and put that in. Still won't boot up. I can also hear a very faint ossolating sound with this card too, but it's definitely not as noticeable.

I've pulled out the card and ram and tried running it. No beeps, etc.

I'm thinking that it might be a bad PSU, but hate to buy one on speculation. Any other thoughts?

Thanks

dispositivo:

Power Mac G5

Status:

open