KG7-Raid : XP1800 : Confused about CPU speed

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Mark Ryan

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Ok, I am not the best mathematical genius in the world but even I can calculate that what the board is reporting is not where near what I should expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?

Not according to my machine!.

13 x 150fsb = 1872mhz apparently.

I've not upped / altered anything from the base settings in the BIOS other than the FSB, should say the I/O Core volt change? be upped? should the ram voltage be raised?

Pointers appreciated.
 
Tom,

That would make sense on my peliminary results.

FSB testing gives....
x13 FSB 150 = 1872 (if x12.5 then FSB = 149.76)
x13 FSB 151 = 1885 (if x12.5 then FSB = 150.80)
x13 FSB 152 = 1900 (if x12.5 then FSB = 152.00)

I've got a nice copper cooler coming tomorrow, so will attempt the unlock previously asked about, just hope the results are workable.

I have another question, in the BIOS there's a (4:4:1) option against CPU:FSB:PCI, what exactly does this do?

"TomG" wrote:

XP 1800+ has a multiplier of 12.5 if I am not mistaken.

--

Thomas Geery
Network+ certified

ftp://geerynet.d2g.com
ftp://68.98.180.8 Abit Mirror <----- Cable modem IP
This IP is dynamic so it *could* change!...
over 115,000 FTP users served!
^^^^^^^
... should expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?

Not according to my machine!.

13 x 150fsb = 1872mhz apparently.

I've not upped / altered anything from the base settings in the BIOS other than the FSB, should say the I/O Core volt change? be upped? should the ram voltage be raised?

Pointers appreciated.

--

Regards,

Mark

...
Click to expand...
 
you can decouple, or change the speed that the FSB, RAM and PCI/AGP busses run at. With varying quality of ram, faster ram can take a higher ram bus speed.
 
"TomG" wrote
XP 1800+ has a multiplier of 12.5 if I am not mistaken.
Click to expand...

Nah Tom, 1800+ spec is 11.5x133.3 for 1533MHz...

"Mark Ryan" wrote
Ok, I am not the best mathematical genius in the world but even I can
calculate that what the board is reporting is not where near what I should expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?

Not according to my machine!.

13 x 150fsb = 1872mhz apparently.
Click to expand...

You're actually getting 12.5x150 for 1875MHz by the looks of it - I assume it's a Tbred B so you didn't need to unlock it..?

KG7 is old enough that you'll probably have to cut L3 bridges to get multipliers above 12.5 - have a look at Wes Newell's website, he goes into a lot of detail for the Tbreds' bridges.

BTW: If it is a Tbred B 1800+ then it will likely do a lot more than 1950MHz with a little extra core Voltage...

Ciao...

[UK]_Nick...

I've not upped / altered anything from the base settings in the BIOS other than the FSB, should say the I/O Core volt change? be upped? should the
ram voltage be raised?

Pointers appreciated.
Click to expand...
 
On Fri, 25 Jul 2003 22:40:39 +0100, Mark Ryan wrote:

Ok, I am not the best mathematical genius in the world but even I can calculate that what the board is reporting is not where near what I should expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?
Click to expand...
The default mulitplier is 11.5.

Not according to my machine!.

13 x 150fsb = 1872mhz apparently.
Click to expand...
I don't think you can set a 13 multiplier, so it's probably set to 12.5. That would come out about right.

I've not upped / altered anything from the base settings in the BIOS other than the FSB, should say the I/O Core volt change? be upped? should the ram voltage be raised?
Click to expand...
Well, 11.5x150=1725. That's what you should be running with a default multipler, so you've changed the multiplier somehow.
 
Nick,

Yep already had loads of help from Wes in fixing a mates bodged CPU unlock.

Re:

Mark

"Nick M V Salmon" wrote:

"TomG" wrote
XP 1800+ has a multiplier of 12.5 if I am not mistaken.

Nah Tom, 1800+ spec is 11.5x133.3 for 1533MHz...

"Mark Ryan" wrote
Ok, I am not the best mathematical genius in the world but even I can calculate that what the board is reporting is not where near what I should expect from the following settings.

... a lot of detail for the Tbreds' bridges.

BTW: If it is a Tbred B 1800+ then it will likely do a lot more than 1950MHz with a little extra core Voltage...

Ciao...

[UK]_Nick...

I've not upped / altered anything from the base settings in the BIOS other ... the ram voltage be raised?

Pointers appreciated.
Click to expand...
 
Nick,

Yep B core, and upped the core voltage to 1.75 now stable at 1,885ghz, going to look to unlock the unit, would like to get 2Ghz out of her. I still have the Silver Conductive paint from mates previous attempt so if I go wrong I believe I'll be no worse off than present.

The new cooler is doing nice job, 44 Deg C with seti running full pelt in the background, completing a set in 3hrs and 44mins, this is down from 14hrs 45mins! Also found out that I can, and have, over clocked my graphics card, the temperature in the case has risen by 5deg C in total, however have some case fans on order.

One further question of advice here, if I do the CPU unlock, and don't complete the track cuts correctly, L3-3 and L3-5, what sort of speed results would I get? Example say the x10 should gice me

Re:

Thanks all.

"Nick M V Salmon" wrote:

"TomG" wrote
XP 1800+ has a multiplier of 12.5 if I am not mistaken.

Nah Tom, 1800+ spec is 11.5x133.3 for 1533MHz...

"Mark Ryan" wrote
Ok, I am not the best mathematical genius in the world but even I can
calculate that what the board is reporting is not where near what I should
expect from the following settings.

... a lot of detail for the Tbreds' bridges.

BTW: If it is a Tbred B 1800+ then it will likely do a lot more than 1950MHz with a little extra core Voltage...

Ciao...

[UK]_Nick...

I've not upped / altered anything from the base settings in the BIOS other ... the ram voltage be raised?

Pointers appreciated.
Click to expand...
 
http://homepage.ntlworld.com/theryanfamily/cpu/

"Wes Newell" wrote:

On Fri, 25 Jul 2003 22:40:39 +0100, Mark Ryan wrote:

Ok, I am not the best mathematical genius in the world but even I can
calculate that what the board is reporting is not where near what I should expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?

The default mulitplier is 11.5.

Not according to my machine!.

13 x 150fsb = 1872mhz apparently.

I don't think you can set a 13 multiplier, so it's probably set to 12.5. That would come out about right. ... other than the FSB, should say the I/O Core volt change? be upped? should the ram voltage be raised?

Well, 11.5x150=1725. That's what you should be running with a default multipler, so you've changed the multiplier somehow.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB) http://mysite.verizon.net/res0exft/cpu.html
Click to expand...
 
please don't post attachments to this group. Post a link or ask someone to put the picture up on a site for you or something like that.
 
Mark Ryan wrote:
http://homepage.ntlworld.com/theryanfamily/cpu/
Click to expand...

Very nice 'touch' ... my compliments.

I last saw some nice paper lanterns like that at the Mustang Ranch.

Qed.
 
On Mon, 28 Jul 2003 00:36:22 +0100, Mark Ryan wrote:

"Wes Newell" wrote:

On Fri, 25 Jul 2003 22:40:39 +0100, Mark Ryan wrote:

Ok, I am not the best mathematical genius in the world but even I can calculate that what the board is reporting is not where near what I should expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?

The default mulitplier is 11.5.
...
Click to expand...
Inline picture deleted by news reader. Showing X13 multiplier.

I didn't mean it wouldn't show in the bios. I meant it's not really 13x. The KT7 also has one that showed 13>above, but it only works with certain cpu's. Once i replaced the old tbird with the 2100+, it disappeared from the bios settings and then the highest shown was 12above.. When my KT7-Raid board shows 10.5 as the multiplier, it's actually 24x with the 2100+ plugged into it, and 12above is really 20x. I assume that your x13 equates to 12.5 with the cpu you have in it. And the math (clock/fsb) proves that out.
 
You mean you keep your eyes open?

"0_Qed" wrote:

Mark Ryan wrote:
http://homepage.ntlworld.com/theryanfamily/cpu/

Very nice 'touch' ... my compliments.

I last saw some nice paper lanterns like that at the Mustang Ranch.

Qed.
Click to expand...
 
Imagine this: A ceiling fan with mirrored blades. Ahhhhhh!!!! "0_Qed" wrote:

Jerry Polyak wrote:
You mean you keep your eyes open?

Yup ...

Added that the lites are 'on' & the ceiling mirrored.

HTH,
Qed
Click to expand...
 
Tom & Group!,

Most bizzar, though I'd removed the attachment before sending, sorry, obviously didn't do so :-(

Re:

Mark

"TomG" wrote:

please don't post attachments to this group. Post a link or ask someone to put the picture up on a site for you or something like that.

--

Thomas Geery
Network+ certified

ftp://geerynet.d2g.com
ftp://68.98.180.8 Abit Mirror <----- Cable modem IP
This IP is dynamic so it *could* change!...
over 115,000 FTP users served!
^^^^^^^
... can calculate that what the board is reporting is not where near what I should
expect from the following settings.

CPU XP1800+, 13 x 150fsb = 1950mhz, yes?

The default mulitplier is 11.5.

Not according to my machine!.

13 x 150fsb = 1872mhz apparently.

...
Click to expand...
12.5.
That would come out about right.

I've not upped / altered anything from the base settings in the BIOS other
than the FSB, should say the I/O Core volt change? be upped? should the ram
voltage be raised?

Well, 11.5x150=1725. That's what you should be running with a default multipler, so you've changed the multiplier somehow.

...
Click to expand...
 
Wes,

Thanks, understand now.

Re:

Mark

"Wes Newell" wrote:

On Mon, 28 Jul 2003 00:36:22 +0100, Mark Ryan wrote:

"Wes Newell" wrote:

On Fri, 25 Jul 2003 22:40:39 +0100, Mark Ryan wrote:

Ok, I am not the best mathematical genius in the world but even I can calculate that what the board is reporting is not where near what I should
expect from the following settings.

...
Click to expand...
12.5.
That would come out about right.

I've not upped / altered anything from the base settings in the BIOS other
than the FSB, should say the I/O Core volt change? be upped? should the ram
voltage be raised?

Well, 11.5x150=1725. That's what you should be running with a default multipler, so you've changed the multiplier somehow.

Inline picture deleted by news reader. Showing X13 multiplier.

I didn't mean it wouldn't show in the bios. I meant it's not really 13x. The KT7 also has one that showed 13>above, but it only works with certain cpu's. Once i replaced the old tbird with the 2100+, it disappeared from the bios settings and then the highest shown was 12above.. When my ...
Click to expand...
 
Jerry Polyak wrote:
Imagine this: A ceiling fan with mirrored blades. Ahhhhhh!!!!
Click to expand...

Geezus!!!

Absolutly CAPITAL !!!

Whao!

My compliments ... a '12' on a scale of 1 to 10.

Qed.
 
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