athlon 1200 probs

zeeform

zeeform

zeeform

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9 Apr 2006
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Hi All

ive managed to scrounge some old bits and bobs, these being

athlon 1200 (A1200AMS3B) which apparently is 100mhz
L7S7A2 motherboard which is 133/166mhz

this board has a jumper (fidjp1) which sets the stepping

ive tried a few steppings which would make it a 1.4ghz but only get blank screen no beeps :confused:

do i need a 133/166mhz chip to get into the bios and unlock it or is there any other way as i dont have any other chips for it
 
Set the jumper to either 9x or 12x - 9x133 or 12x100 = 1200 MHz.

Not sure what FSB speed that CPU runs at, but it might be 133 FSB.
 
That link wouldn't load for me...

But, iirc, the AXP1200 came in two flavours, 133 and 166. The thing about both flavours was that they were VERY hot and had very little overclocking potential :/

Also, they had a very short working life compared to some processors :)

My rec. would be to try it on a proper OCing board, do the pencil mod and then be done with it :)
 
This is the info in the l Type Microprocessor
Part number A1200AMS3B
Introduction date 10/17/2000
Processor core Thunderbird (Model 4)
Manufacturing process 0.18 micron
37 million transistors
Package 453-pin staggered ceramic PGA
1.95" x 1.95" (4.95 cm x 4.95 cm)
Socket Socket A (Socket 462)
Speed (MHz) 1200
Bus frequency (MHz) 100
Clock multiplier 12
Low power features Halt state
Stop Grant states
Sleep state
Probe state

Other features MMX technology
Enhanced 3DNow! Technology with 24 new instructions

Level 1 cache size 2-way set associative 64 KB code
2-way set associative 64 KB data
Level 2 cache size Full-speed on-die 256 KB
Floating Point Unit Integrated
V core (V) 1.75 ± 0.1
Min/Max operating temperature (°C) 0 - 95
Min/Typical/Max power dissipation (W) 5 (Stop Grant mode) / 58.9 / 65.7

Notes on AMD A1200AMS3B:
Bus frequency is 100 MHz. Because the processor uses Double Data Rate bus the effective bus speed is 200 MHz.

ink
 
Really? Crazy.... I could've sworn that it came in two versions.

Ah well, my memory is obviously pretty cack :)

Thinking about it, it'd have been 100 and 133 anyhow, if I'd been even remotely right :)
 
Yeah. The T-bird 1200 could be either a B and C. C being a 133FSB. (A1200AMS3B and A1200AMS3C)

The 1333, and 1400 were only made in C variety.

IIRC with that ECS mobo, I had one years ago, if you set the jumper to 100FSB you will have options in the BIOS to change the FSB upto 132FSB if you want to overclock it.
 
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ah ha! Love that search button! right i got a mate who wants to overclock his rig a bit, anyone know how he should go about it exactly? Is it not simply a case of playing with the BIOS? just that all that talk of jumper settings gets me all jittery like :D

His spec is as follows:

http://www.foehammer.co.uk/images/cpuzscreenshot.JPG

Any help would be really appreciated guys ;)

Oh and pointers for temps for this chip and max overclock to be expected would be ideal!
 
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Foehammer2003

In the BIOS of the MSI-6712 motherboard, there is a Frequency/Voltage Control menu.

Go in there, and adjust the CPU FSB Clock value in 5 MHz increments (ie: 100, 105, 110, etc) until the machine is unstable. If the machine becomes unstable, adjust the voltage to the next one up. !!! Never make huge increases from the default voltage !!! At most 0.4-0.5v extra.

I believe those CPU's multipliers can be unlocked, using a pencil. You'll have to Google for the pencil mod, for more details. Once the multiplier is unlocked, you have more to play with. Rather than say an unstable 14 x 120, you might get away with 14.5 x 115.
 
cool thanks Basmic!

Yeah had already told him about the 5Mhz increments, but think he's gonna wait to get some better cooling as idle he's @ the low 40's, not amazingly high i know. Great to hear from someone who knows the board, thanks :)

and gonna check out the pencil mod, i have heard of it used used before, although on a different board to this i think.
 
As long as the CPU doesn't hit over 60c when loaded, he'll be fine. Anyway, I'm sure those CPUs can take 80c loaded. :eek:

I don't know the board, TBH. I just downloaded the manual, and looked for overclocking potential that way.

Link to some information, regarding unlocking the CPU's multiplier.
 
yeah :eek: alright lol, wouldn't ever want to see an AMD get that hot!

Good idea with the manual download, although im not good at deducing potential from specs, i just play and pray :D

He probably wouldn't want to mod his chip untill he gets another rig set up, just incase it went wrong... great link though, a few more reads and i should start learning how to do it
 
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