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Reply 40 of 51, by feipoa

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Oh? Does v2.29 not run the x9000 CPU at the proper voltage? Could this be why my system isn’t starting?

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Reply 41 of 51, by Artex

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feipoa wrote on 2020-06-20, 05:24:

Oh? Does v2.29 not run the x9000 CPU at the proper voltage? Could this be why my system isn’t starting?

I believe I ran the 2.29 Middleton BIOS first prior to finding the older, but undervolted NVIDIA BIOS based on the slightly older BIOS rev. I still think it could be just a bad/fake CPU. And remember, this older BIOS only changes the voltage for the GPU and is completely independent from CPU voltage.

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Reply 42 of 51, by pii_legacy

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feipoa wrote on 2020-06-20, 05:24:

Oh? Does v2.29 not run the x9000 CPU at the proper voltage? Could this be why my system isn’t starting?

You didn't respond to my earlier post where i asked if you had a sufficiently powerful power supply.

Reply 43 of 51, by feipoa

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If others can use their existing t61 power why would I need another unit with higher output wattage?

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Reply 44 of 51, by pentiumspeed

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thinkpads typically comes with 90W power adapters. 65W were for low powered very few models but T models does not, just 90W always. Also works properly when you have good battery pack. Original adapter 90W is best. I have collection of Thinkpads.

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Reply 45 of 51, by dr_st

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pentiumspeed wrote on 2020-06-22, 00:24:

thinkpads typically comes with 90W power adapters. 65W were for low powered very few models but T models does not, just 90W always. Also works properly when you have good battery pack. Original adapter 90W is best. I have collection of Thinkpads.

In the era of the gray round plug, T-series Thinkpads with integrated graphics did come with 65W power supplies by default. Of course, none of them had X9000 or similar in stock configs. I would not advise using a 65W PSU with that CPU.

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Reply 46 of 51, by feipoa

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My wife's X201 has the 65 W supply, but my T61 has the 90 W supply.

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Reply 48 of 51, by feipoa

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So I initiated a return for that defective/fake X9000 chip. Return shipping was $13 CAD untracked or $52 tracked. The seller sent me $13 then said they would refund the rest when I mailed the CPU. I informed the seller that since they selected an untracked method, they would have to refund the purchase price before I can ship it. This is also in line with eBay rules from what I recalled. Several days passed, but they did not reply. I sent a photo of the chip going into the padded mailer with their address, but they still didn’t reply, so I opened an eBay case. After 2 or 3 days, eBay sends an email saying they have refunded the full purchase price and that I do not need to return the fake CPU. So this is my question - did eBay loose money on this, or did they manage to get the $55 from the seller? I ask because I have the purchase price back plus return shipping, but eBay said I don’t need to send the fake chip back. So what do I do? If eBay lost money, I don’t think I should send the CPU back, but if the seller lost money, the right thing to do is send it back. What’s your opinion?

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Reply 49 of 51, by feipoa

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Artex, have you had any trouble with your T61 and 8 GB of memory after more than a year now? I've been using my T61 with 8 GB in Ubuntu 18.04 for about 7 months now and it just starting having issues. With 8 GB installed, Memtest 5.x (the one that comes with Ubuntu) will hang up on test #7 every time. 2x2GB passes or 1x4GB passes fine, but 2x4GB (8 GB total)or 1x2GB + 1x4GB (6 GB total) will also hang on test 37. It had been working flawlessly for those 7 months though. Got me wondering if I injured the northbridge or what. The CPU regularly gets up to 82 C, but normally sits around 60 C.

I tested both 4 GB sticks in the 2+4 configuration and memtest #7 fails both configurations. Seems unlikely that both 4 GB sticks would get flakey at the same time, thus I am suspecting something on the motherboard. I put a T7300 back in to confirm it wasn't the CPU at fault. Thus I am wondering how you fared over time with your upgrade on the T61? Note that I leave my T61 on 24/7 and it normally has a dozen or so tabs open.

EDIT: Looks like Linux kernel 4.15.0-151 was causing my T61 to crash compared to 4.15.0-147. Reverting back to -147, the problem went away. However, this doesn't explain how Memtest, test #7 crashes with 8 GB, but not with 4 GB. Artex, did you run memtest on your T61 w/8 GB and both cores active? Does test #7 pass?

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Reply 50 of 51, by Artex

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feipoa wrote on 2021-08-05, 13:02:

Artex, have you had any trouble with your T61 and 8 GB of memory after more than a year now? I've been using my T61 with 8 GB in Ubuntu 18.04 for about 7 months now and it just starting having issues. With 8 GB installed, Memtest 5.x (the one that comes with Ubuntu) will hang up on test #7 every time. 2x2GB passes or 1x4GB passes fine, but 2x4GB (8 GB total)or 1x2GB + 1x4GB (6 GB total) will also hang on test 37. It had been working flawlessly for those 7 months though. Got me wondering if I injured the northbridge or what. The CPU regularly gets up to 82 C, but normally sits around 60 C.

I tested both 4 GB sticks in the 2+4 configuration and memtest #7 fails both configurations. Seems unlikely that both 4 GB sticks would get flakey at the same time, thus I am suspecting something on the motherboard. I put a T7300 back in to confirm it wasn't the CPU at fault. Thus I am wondering how you fared over time with your upgrade on the T61? Note that I leave my T61 on 24/7 and it normally has a dozen or so tabs open.

EDIT: Looks like Linux kernel 4.15.0-151 was causing my T61 to crash compared to 4.15.0-147. Reverting back to -147, the problem went away. However, this doesn't explain how Memtest, test #7 crashes with 8 GB, but not with 4 GB. Artex, did you run memtest on your T61 w/8 GB and both cores active? Does test #7 pass?

I haven't had any problems - my wife uses it primarily and she would definitely tell me! 😀

Anyway, I haven't run Memtest on there. It's primarily used for lap web browsing.

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Reply 51 of 51, by feipoa

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Thank you very much. Very curious that your system can pass test #7 without issue. I guess the heat is getting to mine. There's a time of day when the early evening sun shines right onto the computer. I try to close the blinds, but when I'm not looking they open them up again. I've dropped to 2.0 GHz core2 duo and 4 GB and haven't had any issues now.

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