View Full Version : FC-PGA UNlockinG SecReTs
My friend is a instructor at R.I.T and a couple in depth discussions with his teaching buddies and a electronic engineer instructor found out the following about the chip. Yes , we all know the chips are locked but the trace connections that limit the multiplier are tampered with the chip will not function properly this is done by the instructions string that is pre-programmed into the chipset sort of like a self-diag. but in short that instruction string is yes is in fact encrypted. His electronic eng. friend stated that the program that probably does the pre-programming is the locked up secret because with out modifying this string you ARE SCREWED!!!!!
PIII-1GHZ FC-PGA Coppermine EB (Clocked at 1.1)
320MB Ram (PC-133)
Ati Radeon 64MB DDR (Overclocked to 210)
Plextor 12/10/32A CDRW
Hard Drives Maxtor 30Gb UDMA 100
IBM 40Gb UDMA 100
Mobo----- Soyo SY-7VCA2
Sound blaster live Plat. 5.1 with live drive
3com net card
FireWire Card
The multiplier is set by burning connections into inside the chip with a laser. It's as simple as that and there is no way you can unlock it. That also means that no matter what you set the multiplier at it will run at what it was set at from the factory. This means that even if you have an older motherboard that doesn't even have settings for higher multipliers your chip will simply disreard what the multiplier is set at on the motherboard and run at it's correct multiplier. My Tyan Tiger 100 only has multiplier setting upto 7.0, but I could install a 1000E with a multiplier of 10 and it would run at the multiplier of 10 because it's hardwired inside the chip.
It sounds to me like you may be confusing this with Microcode updates. That sounds like what your friends were talking about. That really has nothing to do with the multiplier and there's no way you could change the multiplier with microcode anyway. P6 processors at their most fundamental level don't directly execute x86 instructions. Instead they break each instruction down into microinstructions that are known as microcode and execute it. This microcode is a closely guarded secret by intel. Anyway there are updates to the microcode that can loaded by the bios very early in the boot process. These micrcode updates change how the cpu executes intructions at the most basic level and can be used to fix bugs, or perhaps improve performance or stability. The microcode updates are very specific to each model, family, and stepping of the cpu. Anyway, each time a new microcode update becomes available Intel supplies it to bios manufactures as a block of data in a specific format and the bios manufactures incorporate it into their bios. The bios looks at the first few characters of each microcode update and based on that determines whether that particulr microcode update is for the cpu. Then if it's the correct Microcode update for that cpu, it attempts to load the block of data that follows into the cpu. If it's not exactly right and not in a specific format, that is known only to Intel, the microcode update fails to load because the cpu rejects it. The bios code only has to know how to look at the header on the microcode update and determine if it's correct for the installed CPU and this is all that the bios programmers themselves know. They tell me that even at Intel there are only a handful of people who know the exact details of the microcode itself.
EvilMP (Jun 21, 2001 07:55 p.m.):
My friend is a instructor at R.I.T and a couple in depth discussions with his teaching buddies and a electronic engineer instructor found out the following about the chip. Yes , we all know the chips are locked but the trace connections that limit the multiplier are tampered with the chip will not function properly this is done by the instructions string that is pre-programmed into the chipset sort of like a self-diag. but in short that instruction string is yes is in fact encrypted. His electronic eng. friend stated that the program that probably does the pre-programming is the locked up secret because with out modifying this string you ARE SCREWED!!!!!
So, in short, we need a 200 IQ programming guru who isn't already working for Intel, the NSA, etc to help us unlock the encryption.
Thus far, that's the best explanation I've heard, Unfortunately, I have no means of verifying anoy of this; but that's neither here nor there -- I'm not the 200 IQ programming genius we need.
Well I know that my chip is locked also and the multiplier is stuck at 7.5 and I can get this bad boy up to like 1.150 ghz in that range and it's stable, but the thing I'm worried about is burning up the PC-133 memory!!!! Can anybody answer that question for me? If I ran the CPU at about 1.2 or close to there abouts with the bus speed being over 146Mhz will it do damage to the PC-133 memory if the safe rating is at 133Mhz?????????
I wish I had some 800mhz Rambus Ram!!!!!!!!!!!!!But without a AMD chipset won't happen unless the P4 can break that barrier. I don't know to much about that chipset can someone educate me real quick on the capabilities of the chip..
See what originally happened to Intel at one time the chipsets were unlocked but a couple of stupid idiots in the computer world decided to start a scam and buy say a 800Mhz chip clock it up to 1Ghz and sell it as a 1Ghz chip. Well, intel got wind of it and now won't sell them unlocked because of that stupid venture someone tried!!!!Stupid people **** me offffffff
*spazzed*
06-22-01, 06:14 PM
I highly doubt that you ram is being damaged by pushing the barrier a bit......untill you hit thier limit of course, but then it just won't go highter.
Would you happen to know the limit from experience so I can use it as a sort of reference so when I go higher on the speed, I might know that hey at 160mhz the chips are gonna fry....
Thx for the info I appreciate the help
JaY_III
06-23-01, 01:03 AM
EvilMP (Jun 22, 2001 06:14 p.m.):
See what originally happened to Intel at one time the chipsets were unlocked but a couple of stupid idiots in the computer world decided to start a scam and buy say a 800Mhz chip clock it up to 1Ghz and sell it as a 1Ghz chip. Well, intel got wind of it and now won't sell them unlocked because of that stupid venture someone tried!!!!Stupid people **** me offffffff
actually it was 133's being remarked as 166's, the some 133's were locked (fist time this ever happened)
then the p2's were locked that you could not raise the multiplier only lower...
after August of 98 (P2 generation) multipliers we locked up and down
as 100FSB came to the masses and (333 for example) had a multipler of 5, lower that to 4 and run it on 100 FSB, you got a 400, intel didnt like that at all.
outhouse
06-23-01, 01:15 AM
EvilMP (Jun 22, 2001 06:17 p.m.):
Would you happen to know the limit from experience so I can use it as a sort of reference so when I go higher on the speed, I might know that hey at 160mhz the chips are gonna fry....
Thx for the info I appreciate the help
Nope there is no standard and you really cant fry them they just wont run you'll get a BSOD or it may not post at all. The best way to find out is overclock your PC and see when your memory starts to fail and then in bios change some settings overclock your PC higher until you cant get anymore out of her, as long as its stably your allrite and you will have no risk of frying your memory. remember to allways try and keep your bandwidth as high as possible, also all sticks of memory will fail getting to higher FSB at different times but quality ram will usualy hold up better.
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