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What mobo's have the pci/agp lock feature? and will o'cing with higher voltage eventually hurt your computer?

S

Stiler

Banned
Intersted in which mobo's have this lock feature i been hearing about, does it really matter if i only want to get in the 2.3-2.5 range? can it hurt if i keep it running at high voltages?
 
Running your chip at higher then stock voltage will shorten the life of your processor in the long term. So unless you plan on keeping your current processor for 15-20 years you should worry about it.
 
The Asus P4B266 has been reported (though nothing official or confirmed) to have lockable PCI/AGP, and I believe a few Abit boards have bus locks also.

I have the Asus P4B266, and I personaly believe that the "Turbo" settings in the BIOS do indeed lock the PCI/AGP, I don't know how I can run 160 FSB otherwise, if they weren't locked my PCI bus would be running at 53.33Mhz(AGP 106.66Mhz). I doubt any card could handle that.
 
The Epox 4BDA2+ (RAID) and 4BDA (no Raid) have it. The AGP/PCI lock setting fixes the AGP/PCI @ 66/33 MHz. This setting is available with any FSB 117 MHz and up. The Epox also allows 3:4 mem timing above 133 FSB, which most i845 boards including the P4B266 do not.
 
You have to be riding the edge at 83Mhz I would imagine, I don't know that any card would run at 100+.

Here's a question for everyone...Where can you get one of those PC Gieger PCI cards that will show you bus speeds, among other things? Anyone have any idea, or perhaps experience with one of them?
 


<< You have to be riding the edge at 83Mhz I would imagine, I don't know that any card would run at 100+.

Here's a question for everyone...Where can you get one of those PC Gieger PCI cards that will show you bus speeds, among other things? Anyone have any idea, or perhaps experience with one of them? >>





You can buy it at Newegg or Mwave. I can't rememebr which one seels it, but one of them does. If I remember correctly, it cost about $100.00
 
I found it. Neither Newegg nor Mwave sell them, only available from EksitData.

It's $71.70 USD plus $10 USD for shipping. Comming from Sweden that's cheap shipping. I might just have to grab one of these things, nice looking display panel(5 1/4 bay)

This thing will show PCI/AGP bus speeds, bus utilization in percentage or MB/Sec or KB/Sec, shows port80/84H info, doesn't use a IRQ, nor I/O resources, and it has USB and Firewire ports on the 5 1/4 display piece. Pretty slick IMO😀
 


<< I have the Asus P4B266, and I personaly believe that the "Turbo" settings in the BIOS do indeed lock the PCI/AGP, I don't know how I can run 160 FSB otherwise, if they weren't locked my PCI bus would be running at 53.33Mhz(AGP 106.66Mhz). I doubt any card could handle that >>



Nate420
im pretty sure the P4B266 can do better then a 1/3 pci ratio 😉
wouldnt it be 40pci/80agp with a 1/4 ratio?
 
The Abit TH7-II can also lock the PCI/AGP bus.. and actually cleans up the waveform according to oscilliscope readings taken by someone on the Hard OCP forums.
 
well, i have a p4s333, i'm not sure if it has this, but i want to o'c my p4 northwood 1.6a to at least 2.3 ghz but if i have to up the voltage on it i don't wait to hurt anything, its gonna be all good stuff, like sb audigy, geforce 4 ti4600. I want to at least have this comp for a couple years to come. So if i do up the voltage how much would be the absolute maximum i should do it?
 
my 1.6a on my p4s333 is set at 1.625, yet the readings show only 1.6... anywho, it runs fine so i dont worry... i don't know how much is too much, but i'm at 2.42 ghz with 1.6 volts goin, and i don't think that much will really hurt it much
 


<< I found it. Neither Newegg nor Mwave sell them, only available from EksitData.

It's $71.70 USD plus $10 USD for shipping. Comming from Sweden that's cheap shipping. I might just have to grab one of these things, nice looking display panel(5 1/4 bay)

This thing will show PCI/AGP bus speeds, bus utilization in percentage or MB/Sec or KB/Sec, shows port80/84H info, doesn't use a IRQ, nor I/O resources, and it has USB and Firewire ports on the 5 1/4 display piece. Pretty slick IMO😀 >>





Mwave has them, here is the link: Geiger It's $75.00
 
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