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roseyp
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 Posted: Thu Jan 19, 2006 1:19 pm Post subject: |
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Hi All,
Right here we go again.
Still cant get the 800mhz processor to work, but the 500 and 700 mhz will.
This is getting stupid :wacko:
AMD-K7500MTR51B will work
AMD-K7700MTR51B will work
AMD-K7800MPR52B will not work
AMD A0800MPR24B will not work
Latest bios as well
Rosey |
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sammyc
Joined: 09 Dec 2005
Posts: 1668
Location: Scottish Borders
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| Posted: Thu Jan 19, 2006 1:21 pm Post subject: |
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PR & TR differences?
_________________
4000+ chips.
4004-P4. |
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Alcochaser
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| Posted: Thu May 04, 2006 1:16 am Post subject: |
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| What are you using for a powersupply? The Slot A CPUs could be really finnicky about the Power Supply. Generaly the newer Slot A CPUs used more power then the older ones. Slotted thunderbirds could be -very- power hungry. |
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sammyc
Joined: 09 Dec 2005
Posts: 1668
Location: Scottish Borders
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| Posted: Thu May 04, 2006 3:38 am Post subject: |
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| Alcochaser wrote: | | What are you using for a powersupply? The Slot A CPUs could be really finnicky about the Power Supply. Generaly the newer Slot A CPUs used more power then the older ones. Slotted thunderbirds could be -very- power hungry. |
I think this is a myth that was often brought up with AMD's when they first started appearing as Slot CPU's.
It was often said that you needed a REALLY powerful CPU to run the chip, but I believe this isn't the case. The difference in powersupply needed was something called ATX 2.0 and ATX 2.01, and it just so happened that most powerful supplies were ATX 2.01 rated.
I do not understand power/electricity so I will not try to explain the difference between the 2.
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4000+ chips.
4004-P4. |
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Alcochaser
Joined: 07 May 2006
Posts: 38
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| Posted: Tue May 09, 2006 3:11 am Post subject: |
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The main difference between an ATX 2.0 and an ATX 2.01 supply is the ATX2.01 supply has a requirement for more +12V current. So my original statement stands. The Voltage regulators on the three orignal athlon boards were not the best. And as such the power supply has to make up the diference. I have had supplies that worked with Socket A Thunderbirds that would not power a Slot A thunderbird. The big FIC SD11 was particularly finicky with powersupplies.
If we have to deal with Slot A CPUs in the shop, we allways try a new modern power supply first. and 80% of the time, the new power supply will clear up most stabillity problems with a Slot A. Often these would manifest as HD errors because the hard drive was not getting enough power because the motherboard was drawing it off. The other 20% were usually ram problems. The AMD750 takes issue with a couple brands of SDRAM. |
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sammyc
Joined: 09 Dec 2005
Posts: 1668
Location: Scottish Borders
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| Posted: Tue May 09, 2006 3:17 am Post subject: |
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| Alcochaser wrote: |
...80% of the time, the new power supply will clear up most stabillity problems with a Slot A. Often these would manifest as HD errors because the hard drive was not getting enough power because the motherboard was drawing it off. The other 20% were usually ram problems. The AMD750 takes issue with a couple brands of SDRAM. |
Yes I agree. More recently here, proving to having the right PSU in your computer will mean a more stable PC.
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4000+ chips.
4004-P4. |
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Alcochaser
Joined: 07 May 2006
Posts: 38
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| Posted: Tue May 09, 2006 3:31 am Post subject: |
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| A good rule of thumb I forgot.... The heavier a powersupply feels, the better it is. I have an old Powman FSP-300-60BT that outperforms many so called modern 400W supplies that weigh less. In fact it now powers a K75 Socket A 750MHZ on the FIC SD11. I would be interested to try a Slotted thunderbird however. |
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