First post, by dionb
- Rank
- l33t++
Today I had an AI training at work. We used a bunch of LLM AIs and investigated how they could help us with our work. We were encouraged to try them out to get a feel for the kind of output they could give, both in terms of style, content and reliability.
For the latter, being the retro-geek I am, I chose something very specific to put them through their paces, which makes the output on-topic here 😉
The AI engines I used:
- OpenAI ChatGPT (4.0-mini)
- Microsoft Copilot (no version available)
- Google Gemini (2.0 Flash)
- Anthropic Claude (3.7 Sonnet)
- DeepSeek (v3)
My initial prompt:
"What is the fastest CPU that can be installed on an Asus P/I-P55T2P4 rev 3.10 motherboard?"
This is a fun example. The fastest officially suppoted CPU (i.e. listed in manual) is the P200 non-MMX (!). However the board can be set to 83MHz FSB, supports split-voltage and the Vcore can be set as low as 2.0V - and there is a modified BIOS available allowing K6plus CPUs to be used. So under the right conditions you can run a K63+ on it at 500MHz.
This article explains what's possible and how to do it (but the crucial voltage settings are missing... as of 2025, you need archive.org to see them, a 2008 snapshot does the trick).
https://www.tomshardware.com/reviews/oldie-tuning,216.html
A lot of things could be correct depending on context given.
Then more specifically:
"What is the lowest CPU core voltage I can set on an Asus P/I-P55T2P4 rev 3.10 motherboard?"
The lowest officially documented answer is 2.5V, the lowest mentioned online is 2.0V. It's highly likely you could go lower (bridge that fifth jumper), but either of these would be correct if combined with correct context.
Finally:
"Which jumper settings do I need to set on the Asus P/I-P55T2P4 rev 3.10 motherboard to get 2.0V CPU core voltage?"
Correct answer would be "JP20 1-2, 3-4, 5-6 and 7-8 jumpered", or "2.5V, 2.7V, 2.8V and 2.9V jumpered". Alternately, an answer that 2.5V is the lowest supported is good too, if not as interesting.
So how did the AI do?
ChatGPT
MaxCPU:
Bad. "The Asus P/I-P55T2P4 rev 3.10 motherboard is based on the Intel 440FX chipset" 😦 - no it's not, that's a PPro chipset, this is an i430HX board. As for the CPUs:
Pentium MMX up to 233MHz, AMD K6-2 up to 550MHz (wrong, there's no way to get 550MHz) Cyrix MII up to 300MHz.
Voltage:
Completely wrong: "This motherboard provides options for adjusting CPU core voltage via jumpers or BIOS settings" No, no BIOS settings. "However, the lowest core voltage you can set depends on the processors you are using and the available settings on the motherboard." Duh. It then proceeds to list required voltages for various types of processors and gets most wrong (Pentium MMX 3.3V or 3.45V, K6-2 2.4V or 2.8V...)
Jumper settings:
Wrong - correctly indicates no 2.0V native setting, then says lowest settings available are 2.8V-3.0V depending on the processor. Also no specific jumper settings listed.
Overall: bad. Information is incorrect, both specifics and context, and exact instructions missing.
Copilot
MaxCPU:
Excellent. Mentions both fastest official support (P233MMX) and "with modifications" "K6-2 or K6-III". It offers to help with those modifications.
Voltage:
Correctly mentions 2.5V as lowest official setting (including sources!), no mention of anything lower though. Again offers to help.
Jumper settings:
Mixed bag. States no official support, 2.5V lowest support, but states that 2.0 might be possible with custom configurations. However no info on what configurations exactly.
Gemini
MaxCPU:
Decent-ish. Very verbose output about the board specs (which is correct, unlike with ChatGPT) and best official support (P233MMX). However it then equally verbosely proceeds to talk about "Regarding Unofficially Supported CPUs (The "Risk" Scenario). But cutting through the blurb, it only references the K6-233, which is a bit disappointing...
Voltage:
Useless. Again lots of blurb, but basically it doesn't give specifics and tells me to RTFM.
Jumper settings:
Worse than useless. Again lots of blurb, but basically it doesn't give specifics and tells me to RTFM. However it speculates on what jumper settings generally look like and which jumper numbers would be needed - none of which are remotely correct for this board.
Claude
MaxCPU:
OK-ish, lots of blurb but bottom line is max official support for P233MMX.
Voltage:
Bad. Correctly mentions the lowest officially supported voltage and other official voltage options, but then mentions that you use JP12 and JP13 to select them. Also says (correctly) that lowest voltage depends on board revision but incorrectly states 2.4V as lowest option.
Jumper settings:
OK-ish. Says 2.0V isn't available through standard configuration, that 2.5V is the lowest there. Unfortunately JP12 and 13 appear as well, and it incorrectly states that physical modifications would be necessary for anything lower than 2.5V.
Deepseek
MaxCPU:
Bad. Correctly mentions Pentium 233MMX, but goes on to incorrectly claim that K6-2 550MHz is compatible "but you may need to verify BIOS support". Also says "the motherboard may have specific voltage requirments" but doesn't tell me what they might be. Also suggests the board may have SDRAM (it doesn't).
Voltage:
Poor. Lists (officially) compatible CPUs then gives their voltage requirements. Subsequently continues with hypothetical ways to set voltage and finally states incorrectly that 2.8V is lowest.
Jumper settings:
Poor. Extremely verbose but totally non-specific output about motherboards and voltages, again suggesting that 2.8V is lowest for an old board like this and suggests using an external VRM, something this board doesn't have options for.
Conclusion:
AI has come a long way, but don't trust it for your retro specs & info just yet. Deepseek, Gemini, Claude and (worst) ChatGPT give actively incorrect information about the board, and where not actually wrong are low on details. Copilot is clearly the best of the bunch for this question, with all its answers being correct; it has clearly used the Tomshardware article for its answers - and it was the only one to provide references to prove that. All it missed was the actual settings for low voltage, which would have required uaing the archived version.
So should you use AI? Given that four out of five LLMs tried actively gave incorrect info, some of which might lead to incorrect purchases or even running a CPU at dangerous voltages, I'd suggest that it might be worse than nothing. If you really feel you have to, based on this very limited sample, Microsoft Copilot was head and shoulders ahead of the rest, so give that a try - partly because of it giving the best info but mainly because it linked to its sources allowing you to double-check.
Note that LLM AI models use randomness and constantly update themselves - and output within a session is influenced by prior input in that session. So YMMV and you might get quite different answers to the same prompts.