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SSD suddenly drop in performance

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hi guys, i have friend in U.S and he take my advice to built a PC
gigabyte x58a-ud5,i7 950,gskill 3x2g,2xgtx 460, and crucial SSD 64G C300
so now he set it in sata 3 6gbs and suddenly feel there is some drop in SSD speed, it should be over 300mb/s max read speed on sata3 and over 200mb/s in sata2 now max read is about 140mb/s in sata 3
i just give him the SSD ocz tweak tools and auto tweaking still same
what happen guys any idea please
 

MatTheCat

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hi guys, i have friend in U.S and he take my advice to built a PC
gigabyte x58a-ud5,i7 950,gskill 3x2g,2xgtx 460, and crucial SSD 64G C300
so now he set it in sata 3 6gbs and suddenly feel there is some drop in SSD speed, it should be over 300mb/s max read speed on sata3 and over 200mb/s in sata2 now max read is about 140mb/s in sata 3
i just give him the SSD ocz tweak tools and auto tweaking still same
what happen guys any idea please

I know very little about SSD drives and only just installed my first one a few days ago.

I found that any setting other than AHCI in bios, results in serioulsy below par performance.
 
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ok i forget that, sure i tell him about that cuz i use SSD too it's on AHCI
 
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guys anyone
 
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ofc the C300 has TRIM
 
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TRIM will be disabled once the SSDs run in RAID mode AFAIK. Though RAID is not being used here, is it?
 
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ofc there is no RAID...

Have you tried a Windows reinstall?
 

Solaris17

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Benchmark Scores I dont have time for that.
turn off defragmentation. you dont defrag SDD's. Win 7 has defrag in the background.
 
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Have you tried updating your motherboard? New Bios will stabilize your SSD drive performance...
 

EastCoasthandle

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Tell him to contact the manufacture and explain to them the problem. They should have some sort of solution.
 

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Which gets disabled when OS detects SSD drive...

only after updates because it sure doesnt when its installed on one.
 
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As I said, try to reinstall the OS
 
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Joined
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Memory 128GB (4x32gb) DDR4 3600Mhz | 128GB (8x16GB) DDR4 2933Mhz
Video Card(s) EVGA RTX 3080 | ASUS Strix GTX 970
Storage Optane 900p + NVMe | Optane 900p + 8TB SATA SSDs + 48TB HDDs
Display(s) Alienware AW3423dw QD-OLED | HP Omen 32 1440p
Case be quiet! Dark Base Pro 900 rev 2 | be quiet! Silent Base 800
Power Supply Corsair RM750x + sleeved cables| EVGA P2 750W
Mouse Razer Viper Ultimate (still has buttons on the right side, crucial as I'm a southpaw)
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np, after clearing CMOS, AHCI can be a bitch to remember lol

btw, :)Thanks button :p
 
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