1.2 Tualitan- how many volts is too many?

Last thread, I've now written off the Upgradware 370GU adapter for my Intel
D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05, jumper
selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50, perhaps
level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are the
voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!



--
B'Regards,

Vinnie

Typo- voltage range is 1.3 to 2.05.


sorry 'bout that.


"Uncle Vinnie" wrote in message
...
Last thread, I've now written off the Upgradware 370GU adapter for my
Intel D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05,
jumper selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50, perhaps
level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are
the voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!



--
B'Regards,

Vinnie

You may not need any overvoltage for that CPU. If you search
Google you'll find a site (in German, and unfortunately I don't have
the link handy) where 1.2GHz P3's are running happy as a lark at
145 and 150FSB -- at 1.2V and even lower.

Stick with rated voltage first, and address instability problems if
they come up. Upper range for that cpu is usually 1.85-1.9V.

"Uncle Vinnie" wrote in message ...
Typo- voltage range is 1.3 to 2.05.


sorry 'bout that.


"Uncle Vinnie" wrote in message
...
Last thread, I've now written off the Upgradware 370GU adapter for my
Intel D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05,
jumper selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50, perhaps
level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are
the voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!



--
B'Regards,

Vinnie

Uncle Vinnie wrote:

Last thread, I've now written off the Upgradware 370GU adapter for my Intel
D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05, jumper
selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50, perhaps
level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are the
voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!

Unlike other CPUs the Tualatins reach a point around 1.7-1.8 volts where it
gets worse rather than better. I don't know if that's inherent to the CPU
or the result of some interaction with running them on a coppermine
motherboards. That's also happens to be about what the 'conventional
wisdom' is for 'safe' overvolting, around 15-20% (which is why you see some
motherboards limit the Vcore range).

Overclockers sometimes push past that but, as I said, it seems to be
counter productive on the tualatins.

Your purpose isn't overclocking, though. The theory proposed by P2B, I
think it was, is that perhaps your motherboard regulator can't regulate
well enough at the low voltage so you're trying a higher voltage to get the
*motherboard* Vcore more stable. In which case going on up to 1.65 might
well be a useful test as it's a voltage the motherboard appears to handle,
at least for a slower, lower current draw, coppermine.

One the other end of the spectrum, if the problem is that the motherboard
regulators can't handle the current load you might want to try a lower
voltage to reduce the tualatin's power consumption.

Thanks!

The plot thickens!

I'll start at 1.5 and work my way up, hopefully no higher than 1.6~1.65, see
where that gets me. If nowhere, then I'll move down to 1.45..

I should have the adapter by Tuesday.... so, I'll get back to you after
that....

Thank you VERY much for all your help... btw, still no reply from
Upgradware... BUT if I can get this going with this adapter, then I should
be OK.. not sure what components any of these things are made of anyway- the
LinLin is all over ebay for $1 (they get you on shipping) and the
Upgradware and PowerLeap, I think are around $30-40..... (I paid $39, 3
years ago...)

(as well as the Lunchbox mods, which I was hesitant....)

Interesting... I'll get back to you... thank you again!!

"David Maynard" wrote in message
...
Uncle Vinnie wrote:

Last thread, I've now written off the Upgradware 370GU adapter for my
Intel D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05,
jumper selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50,
perhaps level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are
the voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!

Unlike other CPUs the Tualatins reach a point around 1.7-1.8 volts where
it gets worse rather than better. I don't know if that's inherent to the
CPU or the result of some interaction with running them on a coppermine
motherboards. That's also happens to be about what the 'conventional
wisdom' is for 'safe' overvolting, around 15-20% (which is why you see
some motherboards limit the Vcore range).

Overclockers sometimes push past that but, as I said, it seems to be
counter productive on the tualatins.

Your purpose isn't overclocking, though. The theory proposed by P2B, I
think it was, is that perhaps your motherboard regulator can't regulate
well enough at the low voltage so you're trying a higher voltage to get
the *motherboard* Vcore more stable. In which case going on up to 1.65
might well be a useful test as it's a voltage the motherboard appears to
handle, at least for a slower, lower current draw, coppermine.

One the other end of the spectrum, if the problem is that the motherboard
regulators can't handle the current load you might want to try a lower
voltage to reduce the tualatin's power consumption.

Uncle Vinnie wrote:

Thanks!

The plot thickens!

I'll start at 1.5 and work my way up, hopefully no higher than 1.6~1.65, see
where that gets me. If nowhere, then I'll move down to 1.45..

1.45 won't be any lower because your motherboard doesn't know what .025 is
so 1.475 is 1.45 already. You'll need to at least go down to 1.4 and I'd
try to 1.3 (in steps, of course)


I should have the adapter by Tuesday.... so, I'll get back to you after
that....

Thank you VERY much for all your help... btw, still no reply from
Upgradware... BUT if I can get this going with this adapter, then I should
be OK.. not sure what components any of these things are made of anyway- the
LinLin is all over ebay for $1 (they get you on shipping) and the
Upgradware and PowerLeap, I think are around $30-40..... (I paid $39, 3
years ago...)

(as well as the Lunchbox mods, which I was hesitant....)

Interesting... I'll get back to you... thank you again!!

Good luck and do tell us how it went.


"David Maynard" wrote in message
...

Uncle Vinnie wrote:


Last thread, I've now written off the Upgradware 370GU adapter for my
Intel D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05,
jumper selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50,
perhaps level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are
the voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!

Unlike other CPUs the Tualatins reach a point around 1.7-1.8 volts where
it gets worse rather than better. I don't know if that's inherent to the
CPU or the result of some interaction with running them on a coppermine
motherboards. That's also happens to be about what the 'conventional
wisdom' is for 'safe' overvolting, around 15-20% (which is why you see
some motherboards limit the Vcore range).

Overclockers sometimes push past that but, as I said, it seems to be
counter productive on the tualatins.

Your purpose isn't overclocking, though. The theory proposed by P2B, I
think it was, is that perhaps your motherboard regulator can't regulate
well enough at the low voltage so you're trying a higher voltage to get
the *motherboard* Vcore more stable. In which case going on up to 1.65
might well be a useful test as it's a voltage the motherboard appears to
handle, at least for a slower, lower current draw, coppermine.

One the other end of the spectrum, if the problem is that the motherboard
regulators can't handle the current load you might want to try a lower
voltage to reduce the tualatin's power consumption.

Well, I'm now working on various settings from 1.4 to 1.6, nothing stable
yet.

Somewhere I read about possible heat issues with this board. I have the fan
from the powersupply pulling air out of the box. I have added a fan to the
front of the box (that is where Pionex placed the mounting), which pulls air
into the box. I have an oversized Intel Heatsink/fan on the CPU. Temps are
111 for processor and 99 for board area....

Nothing seems out of the ordinary.... running with a 250 powersupply.
Again, all runs solid with the 800 piii....

Will keep tinkering...






"David Maynard" wrote in message
...
Uncle Vinnie wrote:

Thanks!

The plot thickens!

I'll start at 1.5 and work my way up, hopefully no higher than 1.6~1.65,
see where that gets me. If nowhere, then I'll move down to 1.45..

1.45 won't be any lower because your motherboard doesn't know what .025 is
so 1.475 is 1.45 already. You'll need to at least go down to 1.4 and I'd
try to 1.3 (in steps, of course)


I should have the adapter by Tuesday.... so, I'll get back to you after
that....

Thank you VERY much for all your help... btw, still no reply from
Upgradware... BUT if I can get this going with this adapter, then I
should be OK.. not sure what components any of these things are made of
anyway- the LinLin is all over ebay for $1 (they get you on shipping)
and the Upgradware and PowerLeap, I think are around $30-40..... (I paid
$39, 3 years ago...)

(as well as the Lunchbox mods, which I was hesitant....)

Interesting... I'll get back to you... thank you again!!

Good luck and do tell us how it went.


"David Maynard" wrote in message
...

Uncle Vinnie wrote:


Last thread, I've now written off the Upgradware 370GU adapter for my
Intel D815EEA board. (Though it works great in my Compaq.)

I have taken the easy way out. As opposed to soldering, ala Lunchbox, I
ordered the LinLin adapter, which has a voltage range of 1.3 to 1.05,
jumper selectable.

Since the 1.2 Piii calls for 1.475v, I was going to start at 1.50,
perhaps level off at 1.55 (same as PowerLeap).

Any precautions I should be aware of before I break anything? What are
the voltage limits on the 1.2?

I hope I don't have to go any higher than 1.55volts. The Coppermine is
1.65.

I am hoping the voltage jump will give me some stability.

Thank you again!

Unlike other CPUs the Tualatins reach a point around 1.7-1.8 volts where
it gets worse rather than better. I don't know if that's inherent to the
CPU or the result of some interaction with running them on a coppermine
motherboards. That's also happens to be about what the 'conventional
wisdom' is for 'safe' overvolting, around 15-20% (which is why you see
some motherboards limit the Vcore range).

Overclockers sometimes push past that but, as I said, it seems to be
counter productive on the tualatins.

Your purpose isn't overclocking, though. The theory proposed by P2B, I
think it was, is that perhaps your motherboard regulator can't regulate
well enough at the low voltage so you're trying a higher voltage to get
the *motherboard* Vcore more stable. In which case going on up to 1.65
might well be a useful test as it's a voltage the motherboard appears to
handle, at least for a slower, lower current draw, coppermine.

One the other end of the spectrum, if the problem is that the motherboard
regulators can't handle the current load you might want to try a lower
voltage to reduce the tualatin's power consumption.

On Tue, 19 Jul 2005 09:59:13 -0400, "Uncle Vinnie"
wrote:

I remember having several cpu adapters for pentium 2, but some would
only work correctly with certain motherboards. Maybe you are just out
of luck while pairing your motherboard with THIS special adapter.

Do yourself a favour and trade it for another one, if u cant get it
stable, the plug & play way. After all, you paid for it.

Hi, Tom...

Actually, I have been swapping every component imaginable and it is no one
component in particular.

Runs fine with 800 mhz piii but nothing else.

I've swapped out:

Motherboards (D815EEA's, I have 2 of them)
Hard Drives (I have 2 of them)
Memory sticks (I have a stack of 128's and 256's)
1.2 piii's (I have 2 of them)
Upgradware 370GU's (I have 2 of them)
And now the LinLin adapter.
I have also swapped Power Supplies, no change..


I'm running out of options here....


"tom" wrote in message
...
On Tue, 19 Jul 2005 09:59:13 -0400, "Uncle Vinnie"
wrote:

I remember having several cpu adapters for pentium 2, but some would
only work correctly with certain motherboards. Maybe you are just out
of luck while pairing your motherboard with THIS special adapter.

Do yourself a favour and trade it for another one, if u cant get it
stable, the plug & play way. After all, you paid for it.

Uncle Vinnie wrote:

Hi, Tom...

Actually, I have been swapping every component imaginable and it is no one
component in particular.

Runs fine with 800 mhz piii but nothing else.

I've swapped out:

Motherboards (D815EEA's, I have 2 of them)
Hard Drives (I have 2 of them)
Memory sticks (I have a stack of 128's and 256's)
1.2 piii's (I have 2 of them)
Upgradware 370GU's (I have 2 of them)
And now the LinLin adapter.
I have also swapped Power Supplies, no change..

Was the alternate power supply beefier than 250 watts?


I'm running out of options here....


"tom" wrote in message
...

On Tue, 19 Jul 2005 09:59:13 -0400, "Uncle Vinnie"
wrote:

I remember having several cpu adapters for pentium 2, but some would
only work correctly with certain motherboards. Maybe you are just out
of luck while pairing your motherboard with THIS special adapter.

Do yourself a favour and trade it for another one, if u cant get it
stable, the plug & play way. After all, you paid for it.