Problem with overclocking AMD Phenom 840T. Assistance needed!
Problem with overclocking AMD Phenom 840T. Assistance needed!
Set it to all cores.
But you mentioned OC'ing. That's not OC'ing. It's just attempting to turn on the inactive cores. Are you sure that's what you intended?
Yes, I'm attempting to boost the CPU speed by enabling all cores, but unfortunately my system powers off automatically.
Stop trying to activate potentially faulty cores—they might be disabled for reasons unrelated to OC'ing. OC'ing actually increases the performance of the existing cores.
Clutchc:
Set it to all cores. But you mentioned OC'ing. That's not what you're doing—it's just trying to turn on the disabled cores. Are you sure that's your goal?
Yes, I'm attempting to overclock the CPU. I've enabled all cores, but my computer shuts off automatically. I should stop trying to activate potentially faulty cores. They might be disabled because of defects, which is unrelated to OC'ing. OC'ing actually boosts the speed of existing cores.
How can I increase the performance of these existing cores?
There are two options. You can either boost the CPU core clock's multiplier or raise the base clock. Because your CPU uses a locked clock multiplier, you can't change that. Only the base clock can be increased. However, raising the Base clock (Bclock) affects everything else running on it as well. This isn't something for beginners. You'd need to lower the multipliers of other components to prevent crashes. Even with a stable output using the base clock, it would only reach around 100 MHz, which isn't worth the extra work.
There are two options. You can either boost the multiplier of the CPU core clock or raise the base clock. Because your CPU uses a locked clock multiplier, you can't change that. Only the base clock can be increased. Raising the base clock affects everything else running on it, which isn't ideal for beginners. You'd need to lower the multipliers of other components to prevent crashes. Even with a stable overclock using the base clock, the speed would only reach around 100 MHz, which isn't worth the extra work.
That's disappointing. I just got a rebuilt motherboard to upgrade my old HP desktop and overclock the CPU. The OEM BIOS offered limited choices, and the processor was a bit slow for my needs. Since you can't overclock an OEM PC, I opted for an aftermarket board. Still, I'm interested in trying overclocking, even if it only gives a small boost. 100 MHz isn't much, so it shouldn't be too bad. Would you mind sharing a step-by-step guide on increasing the base clock? Or should I consider buying a new CPU?
You might want to increase the voltage a bit. I used a Phenom 960t and it required more voltage for the other two cores. I'm using MSI control center for overclocking and need guidance on setting Base Clock, CPU Voc, CPU NB, HB Voltage, HT Link, and DRAM Voltage. Core speed is 800Mhz with a ratio of 4.0. Please clarify how to proceed.
I understand this message is from an older forum, but I attempted to use it successfully.