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Quicksilver G4!
- Thread starter IPNixon
- Start date
Thats sweet, what kind of video card?
Even if one slot is fried, couldnt you just put in 3 512mb sticks to still get the maximum of 1.5gb? because at least 2 slots support 512mb sticks, if the RAM limit is 1.5gb, there would have to be 512x2 and 256x2.
still, quite a nice find. I have been trying to get a G4 system for under $100, which seems to be unobtanium lately.
-digital
still, quite a nice find. I have been trying to get a G4 system for under $100, which seems to be unobtanium lately.
-digital
it can only read PC133? I thought it was interchangeable. I know PC133 runs just fine in PC100 slots, it just throttles down. But PC133 slots should be perfectly compatible with PC100s. I know my mom's toshiba laptop takes PC2100, but i was using a PC2700 stick in the second slot. I tried the opposite, and the PC2100 worked just fine in a PC2700 slot. Maybe the stick is just totally dead...
-digital
-digital
), I'll try some other sticks in it.
You can't use PC100 memory in PC133 slot even though they are physically compatible. The memory would be overclocked 33%. You can put PC133 memory in a PC100 slot because it's not being overclocked.it can only read PC133? I thought it was interchangeable. I know PC133 runs just fine in PC100 slots, it just throttles down. But PC133 slots should be perfectly compatible with PC100s. I know my mom's toshiba laptop takes PC2100, but i was using a PC2700 stick in the second slot. I tried the opposite, and the PC2100 worked just fine in a PC2700 slot. Maybe the stick is just totally dead...
-digital
You are on crack.it can only read PC133? I thought it was interchangeable. I know PC133 runs just fine in PC100 slots, it just throttles down. But PC133 slots should be perfectly compatible with PC100s. I know my mom's toshiba laptop takes PC2100, but i was using a PC2700 stick in the second slot. I tried the opposite, and the PC2100 worked just fine in a PC2700 slot. Maybe the stick is just totally dead...
-digital
PC100 will not run in a PC133 board. Ok, sure you can cram the stick in there. Heck if it was a god module with an SPD chip it could run ok. However most of the time the answer is no.
By running the PC100 stick, he drops the bus from 133MHz to 100MHz. This places a large bottleneck in the system, which of course affects overall system performance.
Remind never to hire you as a tech.
LOL! Thats what I have been trying to tell him! JK!
Maybe he always has PC-133 and the system's he uses are always down clocking them.
Maybe he always has PC-133 and the system's he uses are always down clocking them.
Sigh...
Ok, look. On a PC-133 system, you can use either PC-133, or PC-100. If you run PC-133 this will ensure normal operation and keep the system bus at 133MHz. If you run PC-100 then the bus will drop to the highest speed of the slowest stick. In other words you drop the entire system bus from 133MHz to 100MHz. This is not good. Buy better RAM.
On a PC-100 system you can still run either module. Although some older systems have problems recognizing high density modules. Feel free to mix and match PC-100 and PC-133 sticks. If you stick a PC-66 stick in there, the same rule applies. The system bus will drop.
On a PC-66 system (G3's, PII, Celeron, K6, K5, etc.) you can run any damned module you want. There is nothing slower than PC-66 so go for it. Keep in mind though that the sticks must be SDRAM modules and not SIMMS. There are PC-66 SIMMS out there for a few franken-motherboards that appeared for a short time.
Ok, look. On a PC-133 system, you can use either PC-133, or PC-100. If you run PC-133 this will ensure normal operation and keep the system bus at 133MHz. If you run PC-100 then the bus will drop to the highest speed of the slowest stick. In other words you drop the entire system bus from 133MHz to 100MHz. This is not good. Buy better RAM.
On a PC-100 system you can still run either module. Although some older systems have problems recognizing high density modules. Feel free to mix and match PC-100 and PC-133 sticks. If you stick a PC-66 stick in there, the same rule applies. The system bus will drop.
On a PC-66 system (G3's, PII, Celeron, K6, K5, etc.) you can run any damned module you want. There is nothing slower than PC-66 so go for it. Keep in mind though that the sticks must be SDRAM modules and not SIMMS. There are PC-66 SIMMS out there for a few franken-motherboards that appeared for a short time.
Sorry but I've tried moving memory out of PC100 machines into PC 133 machines and they DO NOT WORK EVER in my experience.
What you say also makes no sense because if the system bus drops, so does the speed of the CPU, the drives,and everything else that depends on the bus for it's timings. Putting a PC100 stick in a 533 Digital Audio (which I have never gotten to work anyway) would lower it to a 400mhz machine if your logic follows.
The bus should lower itself to the speed of the lowest RAM. In this case PC-100. Now on certain machines, the whole bus is effected. On some machines just the memory bus is affected. I am not sure if the QS will drop the whole system bus, or just the memory bus.
No way in hell does it auto-OC the RAM from PC-100 to PC-133.
No way in hell does it auto-OC the RAM from PC-100 to PC-133.
Exactly. PC-100 does NOT work in PC-133 boards at PC-133 speeds. IME moving the RAM from a PC-100 machine to a PC-133 machine is hit and miss. Either it will work (albeit at slower speed), or it won't run at all. In the rare instance you can find PC-100 RAM that is happy at PC-133 speeds.
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