E5300 refuses to exceed 345 kHz regardless of adjustments.
E5300 refuses to exceed 345 kHz regardless of adjustments.
I'm attempting to push the overclock of the e5300 to approximately 4.6-4.8 GHz. The voltage boost needed for 4.4 was quite high (1.488-1.6/1.7v), so I decided to try 4.6-4.8 GHz instead. Initially, the cross was around 4.2-4.4 GHz, which required significantly more voltage. It seems that increasing the voltage beyond that point doesn't help much; going up to 4.4-4.6 might be better, possibly between 1.7-1.75. Despite adjusting the voltage, I've had issues with Windows 7 at 4.45 GHz and 1.8V, which caps at around 345 MHz FSB. I also experimented with overvolting the NBIU and FSB termination, but it didn't resolve the problem. Any suggestions on what might be causing this?
I'm ready to reach up to 1.85v because I really want that 5ghz. If I can't, I'll settle for 4.8/4.6ghz and avoid doing this much Vcore—it won't harm my CPU unless I go to 2v, which will instantly kill it. Degradation isn't a big concern since I have extra components, and I'm more concerned about FSB term and PLV voltage, which degrade the CPU much faster than 1.85v would. I've also tried increasing the PLV voltage, but that didn't help either. Please give me recommendations to get this thing up to 4.6-5ghz.
Most individuals familiar with this topic have moved on over ten years ago. However, some posted on forums, prompting me to look up e5300 and 4ghz results and review their past work. That 5.656ghz from a P4 is impressive enough. It would have been interesting to see how benchmarks evaluated its single-thread performance.
Btw i oced the p4 using a 4 heatpipe tower cooler with a fan that spins to 3800 rpm since im too cheap to use water, i degraded it because i shoved too much pll voltage, p4 631 5.656ghz @ 1.8875vcore and 2.46v pll, tho i still wanna oc my e5300 to 4.6-4.8ghz so that its not too slow so someone plz give me reccomendations on what setting will allow this thing to pass 345 fsb and pass 4.5ghz cuz i have tried nb sb term and pll but those didnt work, but i havent fiddled around with cpu and nb clock skew yet so maybe those are the key to oc this thing over 4.5ghz, other than that can anyone give me reccomendations on what setting to change on my p5q mobo?
I can only guess here, because that's an extremely fast clock speed, but I wouldn't think it's very impressive.
We should use Cinebench R15 as a reference, since I already have many scores for different CPUs.
For me, a 3GHz P4 Prescott achieved 46 points. If the score grows more or less steadily with frequency, at 5.6GHz it would reach about 85 points. From my database, the closest matches to that are an overclocked Core 2 Duo Q6600 at 3.2GHz (83 points), and a regular Xeon X3440 (Nehalem/Lynnfield chip, likely around 2.9GHz with turbo) scoring 97 points.
NetBurst's IPC really sucked...
Yeah but these kinds of tools like cinebench are built for handling many threads or processors. It’s similar to how the 16-bit Pentium Pro struggled with modern 32-bit workloads because it was made for a different era. These older chips will definitely struggle with today’s multi-threaded tasks, but it would have been cool to test a single-threaded program on them and see how it performed.
Since creating solutions for multithreading involves significantly different considerations compared to single-threaded systems, along with factors like pipelining, out-of-order execution, and low-level optimizations, the outcomes can vary greatly.
In reality, adjusting voltage settings can reduce PLR and cause flashing on my P5Q with a P5Q Pro Turbo BIOS using a programmer. I believe I could reach 4.497GHz at 1.6V stable (though I think lowering the voltage might be safer). However, I’d prefer to boost frequency, which would likely require PLR voltages below 1.5V and I’m unsure how to achieve that. I’ll shift focus to ways to lower PLR voltage below its default minimum.